{"asset": "chemical-elastomer-material-compatibility", "asset_type": "compatibility", "body": "The compatibility rating of a chemical against thirteen common elastomer families, as published in an industry chemical resistance chart. Each record is one chemical carrying its rating for Nitrile (NBR), EPDM, Neoprene (CR), SBR, Silicone (VMQ), Butyl (IIR), Polyacrylate (ACM), Hypalon (CSM), Viton (FKM), Polyurethane (AU/EU), Fluorosilicone (FVMQ), Aflas (TFE/P), and Kalrez (FFKM). Answers 'is Viton compatible with acetone', 'which elastomer resists sulfuric acid', 'can I use EPDM with gasoline', and 'Nitrile vs EPDM for sodium hydroxide'. Ratings use a 1-4 scale: 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data.\n", "description": "The compatibility rating of a chemical against thirteen common elastomer families, as published in an industry chemical resistance chart. Each record is one chemical carrying its rating for Nitrile (NBR), EPDM, Neoprene (CR), SBR, Silicone (VMQ), Butyl (IIR), Polyacrylate (ACM), Hypalon (CSM), Viton (FKM), Polyurethane (AU/EU), Fluorosilicone (FVMQ), Aflas (TFE/P), and Kalrez (FFKM). Answers 'is Viton compatible with acetone', 'which elastomer resists sulfuric acid', 'can I use EPDM with gasoline', and 'Nitrile vs EPDM for sodium hydroxide'. Ratings use a 1-4 scale: 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data.", "file": "index.md", "generated": true, "harvested": "2026-08-12", "key_field": "chemical", "licence": "Chemical compatibility ratings are factual engineering data published by manufacturers and distributors as free technical resources. Each record quotes a short attributed span from a publicly available chart and links back. Facts are not copyrightable (Feist, 1991).", "sources": ["https://mykin.com/rubber-chemical-resistance-chart", "https://mykin.com/rubber-chemical-resistance-chart-2", "https://mykin.com/rubber-chemical-resistance-chart-3", "https://mykin.com/rubber-chemical-resistance-chart-4", "https://mykin.com/rubber-chemical-resistance-chart-5", "https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Chemical resistance ratings for common elastomers", "type": "dataset", "verified": false} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Abietic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Abietic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Abietic Acid", "epdm": "X", "file": "abietic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "abietic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Abietic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Abietic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetaldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 3\n\n**SBR:** 3\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetaldehyde | 3 | 2 | 3 | 3 | 2 | 2 | 4 | 3 | 4 | 4 | 4 | 3 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Acetaldehyde", "epdm": "2", "file": "acetaldehyde.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "acetaldehyde", "kalrez": "1", "neoprene": "3", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "2", "source_quote": "Acetaldehyde | 3 | 2 | 3 | 3 | 2 | 2 | 4 | 3 | 4 | 4 | 4 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetamide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetamide | 1 | 1 | 1 | 4 | 2 | 2 | 4 | 2 | 3 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Acetamide", "epdm": "1", "file": "acetamide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "acetamide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Acetamide | 1 | 1 | 1 | 4 | 2 | 2 | 4 | 2 | 3 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetamide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetanilide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetanilide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Acetanilide", "epdm": "1", "file": "acetanilide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "acetanilide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Acetanilide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetanilide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetic Acid, 30%\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetic Acid, 30% | X | 1 | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Acetic Acid, 30%", "epdm": "1", "file": "acetic-acid-30.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "acetic-acid-30", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Acetic Acid, 30% | X | 1 | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetic Acid, 30% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetic Acid, 5%\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetic Acid, 5% | 2 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Acetic Acid, 5%", "epdm": "1", "file": "acetic-acid-5.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "acetic-acid-5", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Acetic Acid, 5% | 2 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetic Acid, 5% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetic Acid, Glacial\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetic Acid, Glacial | 2 | 1 | 4 | 2 | 1 | 2 | 4 | 3 | 2 | 4 | 2 | 3 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Acetic Acid, Glacial", "epdm": "1", "file": "acetic-acid-glacial.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "acetic-acid-glacial", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Acetic Acid, Glacial | 2 | 1 | 4 | 2 | 1 | 2 | 4 | 3 | 2 | 4 | 2 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetic Acid, Glacial \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetic Acid, Hot, High Pressure\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetic Acid, Hot, High Pressure | 4 | 3 | 4 | 4 | 3 | 4 | 4 | 3 | 4 | 4 | 4 | 3 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Acetic Acid, Hot, High Pressure", "epdm": "3", "file": "acetic-acid-hot-high-pressure.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "acetic-acid-hot-high-pressure", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Acetic Acid, Hot, High Pressure | 4 | 3 | 4 | 4 | 3 | 4 | 4 | 3 | 4 | 4 | 4 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetic Acid, Hot, High Pressure \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetic Anhydride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetic Anhydride | 3 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Acetic Anhydride", "epdm": "2", "file": "acetic-anhydride.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "acetic-anhydride", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Acetic Anhydride | 3 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetic Anhydride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetoacetic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetoacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Acetoacetic Acid", "epdm": "1", "file": "acetoacetic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "acetoacetic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Acetoacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetoacetic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetone Cyanohydrin\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetone Cyanohydrin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Acetone Cyanohydrin", "epdm": "1", "file": "acetone-cyanohydrin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "acetone-cyanohydrin", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Acetone Cyanohydrin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetone Cyanohydrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 3 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Acetone", "epdm": "1", "file": "acetone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "acetone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Acetone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 3 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetonitrile\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetonitrile | 3 | 1 | X | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Acetonitrile", "epdm": "1", "file": "acetonitrile.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "acetonitrile", "kalrez": "1", "neoprene": "X", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Acetonitrile | 3 | 1 | X | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetonitrile \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetophenetidine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetophenetidine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Acetophenetidine", "epdm": "4", "file": "acetophenetidine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "acetophenetidine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Acetophenetidine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetophenetidine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetophenone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetophenone | 4 | 1 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Acetophenone", "epdm": "1", "file": "acetophenone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "acetophenone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Acetophenone | 4 | 1 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetophenone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetotoluidide\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetotoluidide | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Acetotoluidide", "epdm": "4", "file": "acetotoluidide.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "acetotoluidide", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Acetotoluidide | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetotoluidide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetyl Acetone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetyl Acetone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Acetyl Acetone", "epdm": "1", "file": "acetyl-acetone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "acetyl-acetone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Acetyl Acetone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetyl Acetone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetyl Bromide\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetyl Bromide | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 1 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Acetyl Bromide", "epdm": "1", "file": "acetyl-bromide.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "acetyl-bromide", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Acetyl Bromide | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 1 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetyl Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetyl Chloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetyl Chloride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Acetyl Chloride", "epdm": "4", "file": "acetyl-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "acetyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Acetyl Chloride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetylene Tetrabromide\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetylene Tetrabromide | 4 | 1 | 2 | 4 | X | 1 | X | X | 1 | 4 | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Acetylene Tetrabromide", "epdm": "1", "file": "acetylene-tetrabromide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "acetylene-tetrabromide", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "X", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Acetylene Tetrabromide | 4 | 1 | 2 | 4 | X | 1 | X | X | 1 | 4 | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetylene Tetrabromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetylene Tetrachloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetylene Tetrachloride | 4 | 1 | 2 | 4 | X | 1 | X | X | 1 | 4 | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Acetylene Tetrachloride", "epdm": "1", "file": "acetylene-tetrachloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "acetylene-tetrachloride", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "X", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Acetylene Tetrachloride | 4 | 1 | 2 | 4 | X | 1 | X | X | 1 | 4 | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetylene Tetrachloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetylene\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetylene | 1 | 1 | 2 | 2 | 2 | 1 | 4 | 2 | 1 | 4 | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Acetylene", "epdm": "1", "file": "acetylene.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "acetylene", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Acetylene | 1 | 1 | 2 | 2 | 2 | 1 | 4 | 2 | 1 | 4 | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acetylsalicylic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acetylsalicylic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Acetylsalicylic Acid", "epdm": "4", "file": "acetylsalicylic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "acetylsalicylic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Acetylsalicylic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acetylsalicylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acids, Non-organic\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acids, Non-organic | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Acids, Non-organic", "epdm": "X", "file": "acids-non-organic.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "acids-non-organic", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Acids, Non-organic | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acids, Non-organic \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acids, Organic\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acids, Organic | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Acids, Organic", "epdm": "X", "file": "acids-organic.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "acids-organic", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Acids, Organic | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acids, Organic \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aconitic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aconitic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aconitic Acid", "epdm": "X", "file": "aconitic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aconitic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Aconitic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aconitic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acridine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acridine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Acridine", "epdm": "X", "file": "acridine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "acridine", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Acridine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acridine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acrolein\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acrolein | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Acrolein", "epdm": "1", "file": "acrolein.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "acrolein", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Acrolein | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acrolein \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acrylic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acrylic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Acrylic Acid", "epdm": "4", "file": "acrylic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "acrylic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Acrylic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acrylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Acrylonitrile\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 3\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Acrylonitrile | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 3 | 3 | 4 | 4 | 3 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Acrylonitrile", "epdm": "4", "file": "acrylonitrile.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "acrylonitrile", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "4", "source_quote": "Acrylonitrile | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 3 | 3 | 4 | 4 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Acrylonitrile \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Adipic Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Adipic Acid | 1 | 2 | X | X | X | X | X | X | X | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Adipic Acid", "epdm": "2", "file": "adipic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "adipic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Adipic Acid | 1 | 2 | X | X | X | X | X | X | X | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Adipic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aero Lubriplate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aero Lubriplate | 1 | 4 | 1 | 2 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Aero Lubriplate", "epdm": "4", "file": "aero-lubriplate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aero-lubriplate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Aero Lubriplate | 1 | 4 | 1 | 2 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aero Lubriplate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aero Shell 17 Grease\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aero Shell 17 Grease | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Aero Shell 17 Grease", "epdm": "4", "file": "aero-shell-17-grease.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aero-shell-17-grease", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Aero Shell 17 Grease | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aero Shell 17 Grease \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aero Shell 750\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aero Shell 750 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Aero Shell 750", "epdm": "4", "file": "aero-shell-750.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aero-shell-750", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Aero Shell 750 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aero Shell 750 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aero Shell 7A Grease\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aero Shell 7A Grease | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Aero Shell 7A Grease", "epdm": "4", "file": "aero-shell-7a-grease.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aero-shell-7a-grease", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Aero Shell 7A Grease | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aero Shell 7A Grease \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aero Shell IAC\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aero Shell IAC | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Aero Shell IAC", "epdm": "4", "file": "aero-shell-iac.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aero-shell-iac", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Aero Shell IAC | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aero Shell IAC \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aerosafe 2300\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aerosafe 2300 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Aerosafe 2300", "epdm": "1", "file": "aerosafe-2300.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aerosafe-2300", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Aerosafe 2300 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aerosafe 2300 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aerosafe 2300W\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aerosafe 2300W | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Aerosafe 2300W", "epdm": "1", "file": "aerosafe-2300w.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aerosafe-2300w", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Aerosafe 2300W | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aerosafe 2300W \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aerozene 50 (50% Hydrazine 50% UDMH)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aerozene 50 (50% Hydrazine 50% UDMH) | 3 | 1 | 4 | 4 | 4 | 1 | X | 4 | 4 | 4 | 4 | 2 | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Aerozene 50 (50% Hydrazine 50% UDMH)", "epdm": "1", "file": "aerozene-50-50-hydrazine-50-udmh.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aerozene-50-50-hydrazine-50-udmh", "kalrez": "2", "neoprene": "4", "nitrile": "3", "polyacrylate": "X", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Aerozene 50 (50% Hydrazine 50% UDMH) | 3 | 1 | 4 | 4 | 4 | 1 | X | 4 | 4 | 4 | 4 | 2 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aerozene 50 (50% Hydrazine 50% UDMH) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Air, 200 - 300\u00b0 F\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Air, 200 - 300\u00b0 F | 3 | 2 | 2 | 4 | 1 | 2 | 2 | 2 | 1 | 3 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Air, 200 - 300\u00b0 F", "epdm": "2", "file": "air-200-300-f.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "air-200-300-f", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "2", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Air, 200 - 300\u00b0 F | 3 | 2 | 2 | 4 | 1 | 2 | 2 | 2 | 1 | 3 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Air, 200 - 300\u00b0 F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Air, 300 - 400\u00b0 F\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Air, 300 - 400\u00b0 F | 4 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Air, 300 - 400\u00b0 F", "epdm": "4", "file": "air-300-400-f.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "air-300-400-f", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Air, 300 - 400\u00b0 F | 4 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Air, 300 - 400\u00b0 F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Air, 400 - 500\u00b0 F\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Air, 400 - 500\u00b0 F | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 3 | 4 | 4 | 3 | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Air, 400 - 500\u00b0 F", "epdm": "4", "file": "air-400-500-f.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "air-400-500-f", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Air, 400 - 500\u00b0 F | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 3 | 4 | 4 | 3 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Air, 400 - 500\u00b0 F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Air, Below 200\u00b0 F\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Air, Below 200\u00b0 F | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Air, Below 200\u00b0 F", "epdm": "1", "file": "air-below-200-f.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "air-below-200-f", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Air, Below 200\u00b0 F | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Air, Below 200\u00b0 F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aliphatic Dicarboxylic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aliphatic Dicarboxylic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Aliphatic Dicarboxylic Acid", "epdm": "4", "file": "aliphatic-dicarboxylic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aliphatic-dicarboxylic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Aliphatic Dicarboxylic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aliphatic Dicarboxylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkanes (Paraffin Hydrocarbons)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkanes (Paraffin Hydrocarbons) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkanes (Paraffin Hydrocarbons)", "epdm": "4", "file": "alkanes-paraffin-hydrocarbons.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "alkanes-paraffin-hydrocarbons", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Alkanes (Paraffin Hydrocarbons) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkanes (Paraffin Hydrocarbons) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkanesulfonic Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkanesulfonic Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkanesulfonic Acid", "epdm": "4", "file": "alkanesulfonic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "alkanesulfonic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Alkanesulfonic Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkanesulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkazene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkazene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkazene", "epdm": "4", "file": "alkazene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "alkazene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Alkazene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkazene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkenes (Olefin Hydrocarbons)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkenes (Olefin Hydrocarbons) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkenes (Olefin Hydrocarbons)", "epdm": "4", "file": "alkenes-olefin-hydrocarbons.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "alkenes-olefin-hydrocarbons", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Alkenes (Olefin Hydrocarbons) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkenes (Olefin Hydrocarbons) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkyl Acetone\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkyl Acetone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Alkyl Acetone", "epdm": "1", "file": "alkyl-acetone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "alkyl-acetone", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Alkyl Acetone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkyl Acetone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkyl Alcohol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkyl Alcohol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkyl Alcohol", "epdm": "4", "file": "alkyl-alcohol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "alkyl-alcohol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Alkyl Alcohol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkyl Amine\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkyl Amine | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkyl Amine", "epdm": "4", "file": "alkyl-amine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "alkyl-amine", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Alkyl Amine | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkyl Amine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkyl Aryl Sulfonates\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkyl Aryl Sulfonates | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkyl Aryl Sulfonates", "epdm": "4", "file": "alkyl-aryl-sulfonates.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "alkyl-aryl-sulfonates", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Alkyl Aryl Sulfonates | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkyl Aryl Sulfonates \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkyl Aryl Sulfonics\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkyl Aryl Sulfonics | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkyl Aryl Sulfonics", "epdm": "4", "file": "alkyl-aryl-sulfonics.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "alkyl-aryl-sulfonics", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Alkyl Aryl Sulfonics | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkyl Aryl Sulfonics \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkyl Benzene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkyl Benzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkyl Benzene", "epdm": "4", "file": "alkyl-benzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "alkyl-benzene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Alkyl Benzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkyl Benzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkyl Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkyl Chloride", "epdm": "4", "file": "alkyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "alkyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Alkyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkyl Sulfide\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkyl Sulfide | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkyl Sulfide", "epdm": "4", "file": "alkyl-sulfide.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "alkyl-sulfide", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Alkyl Sulfide | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkyl Sulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alkylnaphthalene Sulfonic Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alkylnaphthalene Sulfonic Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Alkylnaphthalene Sulfonic Acid", "epdm": "4", "file": "alkylnaphthalene-sulfonic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "alkylnaphthalene-sulfonic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Alkylnaphthalene Sulfonic Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alkylnaphthalene Sulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Allyl Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Allyl Chloride | 2 | 4 | 1 | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Allyl Chloride", "epdm": "4", "file": "allyl-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "allyl-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Allyl Chloride | 2 | 4 | 1 | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Allyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Allylidene Diacetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Allylidene Diacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Allylidene Diacetate", "epdm": "1", "file": "allylidene-diacetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "allylidene-diacetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Allylidene Diacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Allylidene Diacetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alpha Picoline\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alpha Picoline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Alpha Picoline", "epdm": "1", "file": "alpha-picoline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "alpha-picoline", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Alpha Picoline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alpha Picoline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Acetate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Acetate | 2 | 1 | 2 | 2 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Acetate", "epdm": "1", "file": "aluminum-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aluminum-acetate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Aluminum Acetate | 2 | 1 | 2 | 2 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Bromide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Bromide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Bromide", "epdm": "1", "file": "aluminum-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aluminum-bromide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Aluminum Bromide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Chlorate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Chlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Chlorate", "epdm": "1", "file": "aluminum-chlorate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aluminum-chlorate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Aluminum Chlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Chlorate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Chloride | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Chloride", "epdm": "1", "file": "aluminum-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aluminum-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Aluminum Chloride | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Ethylate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Ethylate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aluminum Ethylate", "epdm": "X", "file": "aluminum-ethylate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aluminum-ethylate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Aluminum Ethylate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Ethylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Fluoride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Fluoride | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 | 1 | 3 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Fluoride", "epdm": "1", "file": "aluminum-fluoride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aluminum-fluoride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Aluminum Fluoride | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 | 1 | 3 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Fluorosilicate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Fluorosilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aluminum Fluorosilicate", "epdm": "X", "file": "aluminum-fluorosilicate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aluminum-fluorosilicate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Aluminum Fluorosilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Fluorosilicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Formate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Formate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Formate", "epdm": "1", "file": "aluminum-formate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aluminum-formate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Aluminum Formate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Formate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Hydroxide\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Hydroxide | 2 | 1 | X | X | 2 | X | X | X | 2 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aluminum Hydroxide", "epdm": "1", "file": "aluminum-hydroxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aluminum-hydroxide", "kalrez": "1", "neoprene": "X", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "2", "source_quote": "Aluminum Hydroxide | 2 | 1 | X | X | 2 | X | X | X | 2 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Hydroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Linoleate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Linoleate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Aluminum Linoleate", "epdm": "4", "file": "aluminum-linoleate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "aluminum-linoleate", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Aluminum Linoleate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Linoleate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Nitrate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Nitrate | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 | 1 | 3 | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Nitrate", "epdm": "1", "file": "aluminum-nitrate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aluminum-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Aluminum Nitrate | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 | 1 | 3 | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Oxalate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Oxalate", "epdm": "1", "file": "aluminum-oxalate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aluminum-oxalate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Aluminum Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Oxalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Phosphate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Phosphate | 1 | 1 | 1 | X | 2 | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aluminum Phosphate", "epdm": "1", "file": "aluminum-phosphate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aluminum-phosphate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "2", "source_quote": "Aluminum Phosphate | 1 | 1 | 1 | X | 2 | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Potassium Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Potassium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Potassium Sulfate", "epdm": "1", "file": "aluminum-potassium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aluminum-potassium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Aluminum Potassium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Potassium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Salts\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Salts | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Salts", "epdm": "1", "file": "aluminum-salts.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aluminum-salts", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Aluminum Salts | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Salts \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Sodium Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Sodium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Sodium Sulfate", "epdm": "1", "file": "aluminum-sodium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aluminum-sodium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Aluminum Sodium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Sodium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aluminum Sulfate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aluminum Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aluminum Sulfate", "epdm": "1", "file": "aluminum-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aluminum-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Aluminum Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aluminum Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Alums-NH3 -Cr -K\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Alums-NH3 -Cr -K | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 4 | X | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Alums-NH3 -Cr -K", "epdm": "1", "file": "alums-nh3-cr-k.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "alums-nh3-cr-k", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Alums-NH3 -Cr -K | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 4 | X | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Alums-NH3 -Cr -K \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ambrex 33 (Mobil)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ambrex 33 (Mobil) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ambrex 33 (Mobil)", "epdm": "4", "file": "ambrex-33-mobil.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "ambrex-33-mobil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ambrex 33 (Mobil) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ambrex 33 (Mobil) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ambrex 830 (Mobil)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ambrex 830 (Mobil) | 1 | 3 | 2 | 4 | 2 | 3 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Ambrex 830 (Mobil)", "epdm": "3", "file": "ambrex-830-mobil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ambrex-830-mobil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Ambrex 830 (Mobil) | 1 | 3 | 2 | 4 | 2 | 3 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ambrex 830 (Mobil) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amines-Mixed\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amines-Mixed | 4 | 2 | 2 | 2 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 2 |\n\nSource: \n", "butyl": "2", "chemical": "Amines-Mixed", "epdm": "2", "file": "amines-mixed.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "amines-mixed", "kalrez": "2", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Amines-Mixed | 4 | 2 | 2 | 2 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amines-Mixed \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aminoanthraquinone\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aminoanthraquinone | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aminoanthraquinone", "epdm": "X", "file": "aminoanthraquinone.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aminoanthraquinone", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Aminoanthraquinone | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aminoanthraquinone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aminoazobenzene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aminoazobenzene | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aminoazobenzene", "epdm": "X", "file": "aminoazobenzene.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aminoazobenzene", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Aminoazobenzene | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aminoazobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aminobenzene Sulfonic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aminobenzene Sulfonic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aminobenzene Sulfonic Acid", "epdm": "X", "file": "aminobenzene-sulfonic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aminobenzene-sulfonic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Aminobenzene Sulfonic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aminobenzene Sulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aminobenzoic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aminobenzoic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aminobenzoic Acid", "epdm": "X", "file": "aminobenzoic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aminobenzoic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Aminobenzoic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aminobenzoic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aminopyridine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aminopyridine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aminopyridine", "epdm": "X", "file": "aminopyridine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aminopyridine", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Aminopyridine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aminopyridine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aminosalicylic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aminosalicylic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aminosalicylic Acid", "epdm": "X", "file": "aminosalicylic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aminosalicylic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Aminosalicylic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aminosalicylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonia and Lithium Metal in Solution\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 4\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonia and Lithium Metal in Solution | 2 | 2 | X | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 |\n\nSource: \n", "butyl": "2", "chemical": "Ammonia and Lithium Metal in Solution", "epdm": "2", "file": "ammonia-and-lithium-metal-in-solution.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ammonia-and-lithium-metal-in-solution", "kalrez": "4", "neoprene": "X", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ammonia and Lithium Metal in Solution | 2 | 2 | X | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonia and Lithium Metal in Solution \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonia (Anhydrous)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonia (Anhydrous) | 2 | 1 | 1 | 4 | 2 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonia (Anhydrous)", "epdm": "1", "file": "ammonia-anhydrous.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ammonia-anhydrous", "kalrez": "2", "neoprene": "1", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Ammonia (Anhydrous) | 2 | 1 | 1 | 4 | 2 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonia (Anhydrous) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonia, Gas, Cold\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonia, Gas, Cold | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 4 | X | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonia, Gas, Cold", "epdm": "1", "file": "ammonia-gas-cold.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonia-gas-cold", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ammonia, Gas, Cold | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 4 | X | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonia, Gas, Cold \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonia, Gas, Hot\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonia, Gas, Hot | 4 | 2 | 2 | 4 | X | 2 | 4 | 2 | 4 | X | 4 | 2 | 2 |\n\nSource: \n", "butyl": "2", "chemical": "Ammonia, Gas, Hot", "epdm": "2", "file": "ammonia-gas-hot.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ammonia-gas-hot", "kalrez": "2", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Ammonia, Gas, Hot | 4 | 2 | 2 | 4 | X | 2 | 4 | 2 | 4 | X | 4 | 2 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonia, Gas, Hot \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonia, Liquid (Anhydrous)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonia, Liquid (Anhydrous) | 2 | 1 | 1 | 4 | 2 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonia, Liquid (Anhydrous)", "epdm": "1", "file": "ammonia-liquid-anhydrous.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ammonia-liquid-anhydrous", "kalrez": "2", "neoprene": "1", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Ammonia, Liquid (Anhydrous) | 2 | 1 | 1 | 4 | 2 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonia, Liquid (Anhydrous) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Acetate", "epdm": "1", "file": "ammonium-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Arsenate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Arsenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Arsenate", "epdm": "1", "file": "ammonium-arsenate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-arsenate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Arsenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Arsenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Benzoate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Benzoate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Benzoate", "epdm": "1", "file": "ammonium-benzoate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-benzoate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Benzoate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Benzoate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Bicarbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Bicarbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Bicarbonate", "epdm": "1", "file": "ammonium-bicarbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-bicarbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Bicarbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Bicarbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Bisulfite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Bisulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Bisulfite", "epdm": "1", "file": "ammonium-bisulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-bisulfite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Bisulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Bisulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Bromide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Bromide | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | 1 | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Bromide", "epdm": "1", "file": "ammonium-bromide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-bromide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Ammonium Bromide | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | 1 | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Carbamate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Carbamate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Carbamate", "epdm": "1", "file": "ammonium-carbamate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-carbamate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Carbamate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Carbamate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Carbonate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Carbonate | 4 | 1 | 1 | 1 | X | 1 | 4 | 1 | 1 | 4 | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Carbonate", "epdm": "1", "file": "ammonium-carbonate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Ammonium Carbonate | 4 | 1 | 1 | 1 | X | 1 | 4 | 1 | 1 | 4 | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Chloride, 2N\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Chloride, 2N | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | 1 | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Chloride, 2N", "epdm": "1", "file": "ammonium-chloride-2n.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-chloride-2n", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Ammonium Chloride, 2N | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | 1 | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Chloride, 2N \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Citrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Citrate", "epdm": "1", "file": "ammonium-citrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-citrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Citrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Dichromate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Dichromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Dichromate", "epdm": "1", "file": "ammonium-dichromate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-dichromate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Dichromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Dichromate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Diphosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Diphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Diphosphate", "epdm": "1", "file": "ammonium-diphosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-diphosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Diphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Diphosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Fluoride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Fluoride | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | 1 | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Fluoride", "epdm": "1", "file": "ammonium-fluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-fluoride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Ammonium Fluoride | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | 1 | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Fluorosilicate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Fluorosilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Ammonium Fluorosilicate", "epdm": "X", "file": "ammonium-fluorosilicate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ammonium-fluorosilicate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Ammonium Fluorosilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Fluorosilicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Formate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Formate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Formate", "epdm": "1", "file": "ammonium-formate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-formate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Formate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Formate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Hydroxide, 3 Molar\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Hydroxide, 3 Molar | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 3 | 4 | 1 | 2 | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Hydroxide, 3 Molar", "epdm": "1", "file": "ammonium-hydroxide-3-molar.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-hydroxide-3-molar", "kalrez": "2", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Ammonium Hydroxide, 3 Molar | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 3 | 4 | 1 | 2 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Hydroxide, 3 Molar \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Hydroxide, Concentrated\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 3\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Hydroxide, Concentrated | 4 | 1 | 1 | 3 | 1 | 1 | 4 | 1 | 4 | 4 | 1 | 2 | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Hydroxide, Concentrated", "epdm": "1", "file": "ammonium-hydroxide-concentrated.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-hydroxide-concentrated", "kalrez": "2", "neoprene": "1", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "1", "source_quote": "Ammonium Hydroxide, Concentrated | 4 | 1 | 1 | 3 | 1 | 1 | 4 | 1 | 4 | 4 | 1 | 2 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Hydroxide, Concentrated \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Iodide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Iodide | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | 1 | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Iodide", "epdm": "1", "file": "ammonium-iodide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-iodide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Ammonium Iodide | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | 1 | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Iodide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Lactate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Lactate", "epdm": "1", "file": "ammonium-lactate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-lactate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Lactate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Metaphosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Metaphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Metaphosphate", "epdm": "1", "file": "ammonium-metaphosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-metaphosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Metaphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Metaphosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Molybdenate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Molybdenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Molybdenate", "epdm": "1", "file": "ammonium-molybdenate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-molybdenate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Molybdenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Molybdenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Nitrate, 2N\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Nitrate, 2N | 1 | 1 | 1 | 1 | X | 1 | 2 | 1 | X | X | X | 2 | X |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Nitrate, 2N", "epdm": "1", "file": "ammonium-nitrate-2n.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-nitrate-2n", "kalrez": "X", "neoprene": "1", "nitrile": "1", "polyacrylate": "2", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Ammonium Nitrate, 2N | 1 | 1 | 1 | 1 | X | 1 | 2 | 1 | X | X | X | 2 | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Nitrate, 2N \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Nitrite\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Nitrite | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 | X | X | X | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Nitrite", "epdm": "1", "file": "ammonium-nitrite.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-nitrite", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Nitrite | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 | X | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Nitrite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Oxalate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Oxalate", "epdm": "1", "file": "ammonium-oxalate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-oxalate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Oxalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Perchlorate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Perchlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Perchlorate", "epdm": "1", "file": "ammonium-perchlorate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-perchlorate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Perchlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Perchlorate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Perchloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Perchloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Ammonium Perchloride", "epdm": "X", "file": "ammonium-perchloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ammonium-perchloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Ammonium Perchloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Perchloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Persulfate 10%\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Persulfate 10% | 4 | 1 | 1 | 4 | X | 1 | 4 | X | X | 4 | X | 2 | X |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Persulfate 10%", "epdm": "1", "file": "ammonium-persulfate-10.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ammonium-persulfate-10", "kalrez": "X", "neoprene": "1", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Ammonium Persulfate 10% | 4 | 1 | 1 | 4 | X | 1 | 4 | X | X | 4 | X | 2 | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Persulfate 10% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Persulfate Solution\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Persulfate Solution | 4 | 1 | X | 4 | X | 1 | 4 | X | X | 4 | X | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Persulfate Solution", "epdm": "1", "file": "ammonium-persulfate-solution.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ammonium-persulfate-solution", "kalrez": "1", "neoprene": "X", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Ammonium Persulfate Solution | 4 | 1 | X | 4 | X | 1 | 4 | X | X | 4 | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Persulfate Solution \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Phosphate, Dibasic\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Phosphate, Dibasic | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | X | X | X | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Phosphate, Dibasic", "epdm": "1", "file": "ammonium-phosphate-dibasic.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-phosphate-dibasic", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ammonium Phosphate, Dibasic | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | X | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Phosphate, Dibasic \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Phosphate, Mono-Basic\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Phosphate, Mono-Basic | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | X | X | X | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Phosphate, Mono-Basic", "epdm": "1", "file": "ammonium-phosphate-mono-basic.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-phosphate-mono-basic", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ammonium Phosphate, Mono-Basic | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | X | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Phosphate, Mono-Basic \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Phosphate, Tribasic\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Phosphate, Tribasic | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | X | X | X | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Phosphate, Tribasic", "epdm": "1", "file": "ammonium-phosphate-tribasic.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-phosphate-tribasic", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ammonium Phosphate, Tribasic | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | X | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Phosphate, Tribasic \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Phosphate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Phosphate | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 4 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Phosphate", "epdm": "1", "file": "ammonium-phosphate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-phosphate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ammonium Phosphate | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 4 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Phosphite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Phosphite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Phosphite", "epdm": "1", "file": "ammonium-phosphite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-phosphite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Phosphite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Phosphite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Picrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Picrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Picrate", "epdm": "1", "file": "ammonium-picrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-picrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Picrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Picrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Polysulfide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Polysulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Polysulfide", "epdm": "1", "file": "ammonium-polysulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-polysulfide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Polysulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Polysulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Salicylate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Salicylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Salicylate", "epdm": "1", "file": "ammonium-salicylate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-salicylate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Salicylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Salicylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Salts\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Salts | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 3 | X | 3 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Salts", "epdm": "1", "file": "ammonium-salts.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-salts", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "3", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ammonium Salts | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 3 | X | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Salts \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Sulfamate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Sulfamate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Sulfamate", "epdm": "1", "file": "ammonium-sulfamate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-sulfamate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Sulfamate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Sulfamate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Sulfate Nitrate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Sulfate Nitrate | 1 | 1 | 1 | 2 | X | 1 | 4 | 1 | 4 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Sulfate Nitrate", "epdm": "1", "file": "ammonium-sulfate-nitrate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-sulfate-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Ammonium Sulfate Nitrate | 1 | 1 | 1 | 2 | X | 1 | 4 | 1 | 4 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Sulfate Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Sulfate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Sulfate | 1 | 1 | 1 | 2 | X | 1 | 4 | 1 | 4 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Sulfate", "epdm": "1", "file": "ammonium-sulfate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Ammonium Sulfate | 1 | 1 | 1 | 2 | X | 1 | 4 | 1 | 4 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Sulfide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Sulfide | 1 | 1 | 1 | 2 | X | 1 | 4 | 1 | 4 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Sulfide", "epdm": "1", "file": "ammonium-sulfide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-sulfide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Ammonium Sulfide | 1 | 1 | 1 | 2 | X | 1 | 4 | 1 | 4 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Sulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Sulfite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Sulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Sulfite", "epdm": "1", "file": "ammonium-sulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-sulfite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Sulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Sulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Thiocyanate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Thiocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Thiocyanate", "epdm": "1", "file": "ammonium-thiocyanate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-thiocyanate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Thiocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Thiocyanate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Thioglycolate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Thioglycolate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Thioglycolate", "epdm": "1", "file": "ammonium-thioglycolate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-thioglycolate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Thioglycolate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Thioglycolate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Thiosulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Thiosulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Thiosulfate", "epdm": "1", "file": "ammonium-thiosulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-thiosulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Thiosulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Thiosulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Tungstate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Tungstate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Tungstate", "epdm": "1", "file": "ammonium-tungstate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-tungstate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Tungstate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Tungstate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ammonium Valerate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ammonium Valerate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ammonium Valerate", "epdm": "1", "file": "ammonium-valerate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ammonium-valerate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ammonium Valerate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ammonium Valerate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Acetate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Acetate | 1 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Amyl Acetate", "epdm": "3", "file": "amyl-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "amyl-acetate", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Amyl Acetate | 1 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Alcohol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Alcohol | 2 | 1 | 2 | 2 | 4 | 1 | 4 | 2 | 2 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Amyl Alcohol", "epdm": "1", "file": "amyl-alcohol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "amyl-alcohol", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Amyl Alcohol | 2 | 1 | 2 | 2 | 4 | 1 | 4 | 2 | 2 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Borate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Borate | 1 | 4 | 1 | 4 | X | 4 | X | 1 | 1 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Amyl Borate", "epdm": "4", "file": "amyl-borate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "amyl-borate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Amyl Borate | 1 | 4 | 1 | 4 | X | 4 | X | 1 | 1 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Borate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Butyrate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Butyrate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Amyl Butyrate", "epdm": "4", "file": "amyl-butyrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "amyl-butyrate", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Amyl Butyrate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Butyrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Chloride | X | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | X | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Amyl Chloride", "epdm": "4", "file": "amyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "amyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Amyl Chloride | X | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | X | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Chloronaphthalene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Chloronaphthalene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | X | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Amyl Chloronaphthalene", "epdm": "4", "file": "amyl-chloronaphthalene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "amyl-chloronaphthalene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Amyl Chloronaphthalene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | X | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Chloronaphthalene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Cinnamic Aldehyde\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Cinnamic Aldehyde | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Amyl Cinnamic Aldehyde", "epdm": "4", "file": "amyl-cinnamic-aldehyde.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "amyl-cinnamic-aldehyde", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Amyl Cinnamic Aldehyde | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Cinnamic Aldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Laurate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Laurate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Amyl Laurate", "epdm": "4", "file": "amyl-laurate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "amyl-laurate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Amyl Laurate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Laurate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Mercaptan\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Mercaptan | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Amyl Mercaptan", "epdm": "4", "file": "amyl-mercaptan.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "amyl-mercaptan", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Amyl Mercaptan | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Mercaptan \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Naphthalene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Naphthalene | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Amyl Naphthalene", "epdm": "4", "file": "amyl-naphthalene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "amyl-naphthalene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Amyl Naphthalene | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Naphthalene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Amyl Nitrate", "epdm": "1", "file": "amyl-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "amyl-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Amyl Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Nitrite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Nitrite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Amyl Nitrite", "epdm": "1", "file": "amyl-nitrite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "amyl-nitrite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Amyl Nitrite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Nitrite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Phenol\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Phenol | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Amyl Phenol", "epdm": "X", "file": "amyl-phenol.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "amyl-phenol", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Amyl Phenol | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Phenol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Amyl Propionate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Amyl Propionate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Amyl Propionate", "epdm": "4", "file": "amyl-propionate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "amyl-propionate", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Amyl Propionate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Amyl Propionate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** AN-O-3 Grade M\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> AN-O-3 Grade M | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "AN-O-3 Grade M", "epdm": "4", "file": "an-o-3-grade-m.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "an-o-3-grade-m", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "AN-O-3 Grade M | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "AN-O-3 Grade M \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** AN-O-366\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> AN-O-366 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "AN-O-366", "epdm": "4", "file": "an-o-366.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "an-o-366", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "AN-O-366 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "AN-O-366 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** AN-O-6\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> AN-O-6 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "AN-O-6", "epdm": "4", "file": "an-o-6.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "an-o-6", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "AN-O-6 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "AN-O-6 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** AN-VV-O-366b Hydr. Fluid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> AN-VV-O-366b Hydr. Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "AN-VV-O-366b Hydr. Fluid", "epdm": "4", "file": "an-vv-o-366b-hydr-fluid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "an-vv-o-366b-hydr-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "AN-VV-O-366b Hydr. Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "AN-VV-O-366b Hydr. Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Anderol, L-774 (di-ester)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Anderol, L-774 (di-ester) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Anderol, L-774 (di-ester)", "epdm": "4", "file": "anderol-l-774-di-ester.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "anderol-l-774-di-ester", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Anderol, L-774 (di-ester) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Anderol, L-774 (di-ester) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Anderol, L- 826 (di-ester)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Anderol, L- 826 (di-ester) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Anderol, L- 826 (di-ester)", "epdm": "4", "file": "anderol-l-826-di-ester.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "anderol-l-826-di-ester", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Anderol, L- 826 (di-ester) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Anderol, L- 826 (di-ester) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Anderol, L- 829 (di-ester)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Anderol, L- 829 (di-ester) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Anderol, L- 829 (di-ester)", "epdm": "4", "file": "anderol-l-829-di-ester.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "anderol-l-829-di-ester", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Anderol, L- 829 (di-ester) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Anderol, L- 829 (di-ester) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ANG-25 (Di-ester Base) (TG749)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ANG-25 (Di-ester Base) (TG749) | 2 | 4 | 4 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "ANG-25 (Di-ester Base) (TG749)", "epdm": "4", "file": "ang-25-di-ester-base-tg749.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ang-25-di-ester-base-tg749", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "ANG-25 (Di-ester Base) (TG749) | 2 | 4 | 4 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ANG-25 (Di-ester Base) (TG749) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ANG-25 (Glyceral Ester)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ANG-25 (Glyceral Ester) | 2 | 1 | 2 | 2 | 2 | 2 | 4 | 2 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "ANG-25 (Glyceral Ester)", "epdm": "1", "file": "ang-25-glyceral-ester.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ang-25-glyceral-ester", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "ANG-25 (Glyceral Ester) | 2 | 1 | 2 | 2 | 2 | 2 | 4 | 2 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ANG-25 (Glyceral Ester) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aniline Dyes\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aniline Dyes | 4 | 2 | 2 | 2 | 3 | 2 | 4 | 2 | 2 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Aniline Dyes", "epdm": "2", "file": "aniline-dyes.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "aniline-dyes", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "3", "source_quote": "Aniline Dyes | 4 | 2 | 2 | 2 | 3 | 2 | 4 | 2 | 2 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aniline Dyes \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aniline Hydrochloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 3\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aniline Hydrochloride | 2 | 2 | 4 | 3 | 3 | 2 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Aniline Hydrochloride", "epdm": "2", "file": "aniline-hydrochloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aniline-hydrochloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "3", "source_quote": "Aniline Hydrochloride | 2 | 2 | 4 | 3 | 3 | 2 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aniline Hydrochloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aniline Oil\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aniline Oil | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 3 | 4 | 3 | 2 | 2 |\n\nSource: \n", "butyl": "2", "chemical": "Aniline Oil", "epdm": "2", "file": "aniline-oil.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aniline-oil", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Aniline Oil | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 3 | 4 | 3 | 2 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aniline Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aniline Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aniline Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aniline Sulfate", "epdm": "1", "file": "aniline-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aniline-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Aniline Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aniline Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aniline Sulfite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aniline Sulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aniline Sulfite", "epdm": "1", "file": "aniline-sulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aniline-sulfite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Aniline Sulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aniline Sulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aniline\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aniline | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 3 | 4 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Aniline", "epdm": "2", "file": "aniline.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aniline", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Aniline | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 3 | 4 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aniline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Animal Fats\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Animal Fats | 1 | 2 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Animal Fats", "epdm": "2", "file": "animal-fats.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "animal-fats", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Animal Fats | 1 | 2 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Animal Fats \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Animal Oil (Lard Oil)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Animal Oil (Lard Oil) | 1 | 2 | 2 | 4 | 2 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Animal Oil (Lard Oil)", "epdm": "2", "file": "animal-oil-lard-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "animal-oil-lard-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Animal Oil (Lard Oil) | 1 | 2 | 2 | 4 | 2 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Animal Oil (Lard Oil) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Anisole\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Anisole | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Anisole", "epdm": "X", "file": "anisole.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "anisole", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Anisole | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Anisole \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Anisoyl Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Anisoyl Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Anisoyl Chloride", "epdm": "X", "file": "anisoyl-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "anisoyl-chloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Anisoyl Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Anisoyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ansul Ether 161 or 181\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ansul Ether 161 or 181 | 3 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 2 | 3 | 3 | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Ansul Ether 161 or 181", "epdm": "3", "file": "ansul-ether-161-or-181.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ansul-ether-161-or-181", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ansul Ether 161 or 181 | 3 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 2 | 3 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ansul Ether 161 or 181 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Anthracene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Anthracene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Anthracene", "epdm": "4", "file": "anthracene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "anthracene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Anthracene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Anthracene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Anthranilic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Anthranilic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Anthranilic Acid", "epdm": "X", "file": "anthranilic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "anthranilic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Anthranilic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Anthranilic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Anthraquinone\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Anthraquinone | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Anthraquinone", "epdm": "X", "file": "anthraquinone.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "anthraquinone", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Anthraquinone | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Anthraquinone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Anti-freeze Solutions\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Anti-freeze Solutions | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Anti-freeze Solutions", "epdm": "1", "file": "anti-freeze-solutions.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "anti-freeze-solutions", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Anti-freeze Solutions | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Anti-freeze Solutions \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Antimony Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Antimony Chloride | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Antimony Chloride", "epdm": "4", "file": "antimony-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "antimony-chloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Antimony Chloride | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Antimony Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Antimony Pentachloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Antimony Pentachloride | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Antimony Pentachloride", "epdm": "4", "file": "antimony-pentachloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "antimony-pentachloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Antimony Pentachloride | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Antimony Pentachloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Antimony Pentafluoride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Antimony Pentafluoride | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Antimony Pentafluoride", "epdm": "X", "file": "antimony-pentafluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "antimony-pentafluoride", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Antimony Pentafluoride | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Antimony Pentafluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Antimony Sulfate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Antimony Sulfate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Antimony Sulfate", "epdm": "X", "file": "antimony-sulfate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "antimony-sulfate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Antimony Sulfate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Antimony Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Antimony Tribromide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Antimony Tribromide | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Antimony Tribromide", "epdm": "4", "file": "antimony-tribromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "antimony-tribromide", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Antimony Tribromide | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Antimony Tribromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Antimony Trichloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Antimony Trichloride | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Antimony Trichloride", "epdm": "4", "file": "antimony-trichloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "antimony-trichloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Antimony Trichloride | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Antimony Trichloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Antimony Trifluoride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Antimony Trifluoride | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Antimony Trifluoride", "epdm": "4", "file": "antimony-trifluoride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "antimony-trifluoride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Antimony Trifluoride | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Antimony Trifluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Antimony Trioxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Antimony Trioxide | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Antimony Trioxide", "epdm": "4", "file": "antimony-trioxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "antimony-trioxide", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Antimony Trioxide | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Antimony Trioxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aqua Regia\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aqua Regia | 4 | 3 | 4 | X | X | X | X | X | 2 | X | X | 3 | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Aqua Regia", "epdm": "3", "file": "aqua-regia.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aqua-regia", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Aqua Regia | 4 | 3 | 4 | X | X | X | X | X | 2 | X | X | 3 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aqua Regia \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Arachidic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Arachidic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Arachidic Acid", "epdm": "X", "file": "arachidic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "arachidic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Arachidic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Arachidic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Argon\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Argon | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Argon", "epdm": "1", "file": "argon.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "argon", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Argon | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Argon \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aroclor, 1248\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aroclor, 1248 | 3 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Aroclor, 1248", "epdm": "2", "file": "aroclor-1248.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aroclor-1248", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Aroclor, 1248 | 3 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aroclor, 1248 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aroclor, 1254\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aroclor, 1254 | 4 | 2 | 4 | 4 | 3 | 4 | 4 | 4 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Aroclor, 1254", "epdm": "2", "file": "aroclor-1254.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aroclor-1254", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Aroclor, 1254 | 4 | 2 | 4 | 4 | 3 | 4 | 4 | 4 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aroclor, 1254 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aroclor, 1260\n\n**Nitrile (NBR):** 1\n\n**EPDM:** X\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aroclor, 1260 | 1 | X | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aroclor, 1260", "epdm": "X", "file": "aroclor-1260.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aroclor-1260", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Aroclor, 1260 | 1 | X | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aroclor, 1260 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aromatic Fuel -50%\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aromatic Fuel -50% | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Aromatic Fuel -50%", "epdm": "4", "file": "aromatic-fuel-50.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aromatic-fuel-50", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Aromatic Fuel -50% | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aromatic Fuel -50% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Arsenic Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Arsenic Acid | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Arsenic Acid", "epdm": "1", "file": "arsenic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "arsenic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Arsenic Acid | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Arsenic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Arsenic Oxide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Arsenic Oxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Arsenic Oxide", "epdm": "X", "file": "arsenic-oxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "arsenic-oxide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Arsenic Oxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Arsenic Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Arsenic Trichloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Arsenic Trichloride | 1 | 4 | 1 | X | X | X | X | X | 4 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Arsenic Trichloride", "epdm": "4", "file": "arsenic-trichloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "arsenic-trichloride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Arsenic Trichloride | 1 | 4 | 1 | X | X | X | X | X | 4 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Arsenic Trichloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Arsenic Trioxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Arsenic Trioxide | 1 | 4 | 1 | X | X | X | X | X | 4 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Arsenic Trioxide", "epdm": "4", "file": "arsenic-trioxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "arsenic-trioxide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Arsenic Trioxide | 1 | 4 | 1 | X | X | X | X | X | 4 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Arsenic Trioxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Arsenic Trisulfide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Arsenic Trisulfide | 1 | 4 | 1 | X | X | X | X | X | 4 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Arsenic Trisulfide", "epdm": "4", "file": "arsenic-trisulfide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "arsenic-trisulfide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Arsenic Trisulfide | 1 | 4 | 1 | X | X | X | X | X | 4 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Arsenic Trisulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Arsenites\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Arsenites | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Arsenites", "epdm": "X", "file": "arsenites.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "arsenites", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Arsenites | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Arsenites \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Arsine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Arsine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Arsine", "epdm": "X", "file": "arsine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "arsine", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Arsine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Arsine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aryl Orthosilicate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aryl Orthosilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Aryl Orthosilicate", "epdm": "X", "file": "aryl-orthosilicate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aryl-orthosilicate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Aryl Orthosilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aryl Orthosilicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ascorbic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ascorbic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ascorbic Acid", "epdm": "1", "file": "ascorbic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ascorbic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ascorbic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Ascorbic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Askarel Transformer Oil\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Askarel Transformer Oil | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Askarel Transformer Oil", "epdm": "4", "file": "askarel-transformer-oil.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "askarel-transformer-oil", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Askarel Transformer Oil | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Askarel Transformer Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aspartic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aspartic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Aspartic Acid", "epdm": "1", "file": "aspartic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "aspartic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Aspartic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aspartic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Asphalt\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Asphalt | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Asphalt", "epdm": "4", "file": "asphalt.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "asphalt", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Asphalt | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Asphalt \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ASTM Oil, No. 1\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ASTM Oil, No. 1 | 1 | 4 | 1 | 4 | 1 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "ASTM Oil, No. 1", "epdm": "4", "file": "astm-oil-no-1.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "astm-oil-no-1", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "ASTM Oil, No. 1 | 1 | 4 | 1 | 4 | 1 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ASTM Oil, No. 1 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ASTM Oil, No. 2\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ASTM Oil, No. 2 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "ASTM Oil, No. 2", "epdm": "4", "file": "astm-oil-no-2.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "astm-oil-no-2", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "ASTM Oil, No. 2 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ASTM Oil, No. 2 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ASTM Oil, No. 3\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ASTM Oil, No. 3 | 1 | 4 | 4 | 4 | 3 | 4 | 1 | 4 | 1 | 2 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "ASTM Oil, No. 3", "epdm": "4", "file": "astm-oil-no-3.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "astm-oil-no-3", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "ASTM Oil, No. 3 | 1 | 4 | 4 | 4 | 3 | 4 | 1 | 4 | 1 | 2 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ASTM Oil, No. 3 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ASTM Oil, No. 4\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ASTM Oil, No. 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "ASTM Oil, No. 4", "epdm": "4", "file": "astm-oil-no-4.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "astm-oil-no-4", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "ASTM Oil, No. 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ASTM Oil, No. 4 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ASTM Oil, No. 5\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ASTM Oil, No. 5 | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "ASTM Oil, No. 5", "epdm": "4", "file": "astm-oil-no-5.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "astm-oil-no-5", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "ASTM Oil, No. 5 | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ASTM Oil, No. 5 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ASTM Reference Fuel A\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ASTM Reference Fuel A | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "ASTM Reference Fuel A", "epdm": "4", "file": "astm-reference-fuel-a.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "astm-reference-fuel-a", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "ASTM Reference Fuel A | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ASTM Reference Fuel A \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ASTM Reference Fuel B\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ASTM Reference Fuel B | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "ASTM Reference Fuel B", "epdm": "4", "file": "astm-reference-fuel-b.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "astm-reference-fuel-b", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "ASTM Reference Fuel B | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ASTM Reference Fuel B \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ASTM Reference Fuel C\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ASTM Reference Fuel C | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "ASTM Reference Fuel C", "epdm": "4", "file": "astm-reference-fuel-c.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "astm-reference-fuel-c", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "ASTM Reference Fuel C | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ASTM Reference Fuel C \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ASTM Reference Fuel D\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ASTM Reference Fuel D | 2 | 4 | 4 | X | X | X | X | X | 1 | X | X | 4 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "ASTM Reference Fuel D", "epdm": "4", "file": "astm-reference-fuel-d.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "astm-reference-fuel-d", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "ASTM Reference Fuel D | 2 | 4 | 4 | X | X | X | X | X | 1 | X | X | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ASTM Reference Fuel D \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** ATL-857\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> ATL-857 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "ATL-857", "epdm": "4", "file": "atl-857.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "atl-857", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "ATL-857 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "ATL-857 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Atlantic Dominion F\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Atlantic Dominion F | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Atlantic Dominion F", "epdm": "4", "file": "atlantic-dominion-f.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "atlantic-dominion-f", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Atlantic Dominion F | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Atlantic Dominion F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Atlantic Utro Gear-e\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Atlantic Utro Gear-e | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Atlantic Utro Gear-e", "epdm": "4", "file": "atlantic-utro-gear-e.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "atlantic-utro-gear-e", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Atlantic Utro Gear-e | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Atlantic Utro Gear-e \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Atlantic Utro Gear-EP Lube\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Atlantic Utro Gear-EP Lube | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Atlantic Utro Gear-EP Lube", "epdm": "4", "file": "atlantic-utro-gear-ep-lube.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "atlantic-utro-gear-ep-lube", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Atlantic Utro Gear-EP Lube | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Atlantic Utro Gear-EP Lube \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Aure 903R (Mobil)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Aure 903R (Mobil) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Aure 903R (Mobil)", "epdm": "4", "file": "aure-903r-mobil.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "aure-903r-mobil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Aure 903R (Mobil) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Aure 903R (Mobil) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** AUREX 256\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> AUREX 256 | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "AUREX 256", "epdm": "X", "file": "aurex-256.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "aurex-256", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "AUREX 256 | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "AUREX 256 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Automatic Transmission Fluid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Automatic Transmission Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | X | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Automatic Transmission Fluid", "epdm": "4", "file": "automatic-transmission-fluid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "automatic-transmission-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Automatic Transmission Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Automatic Transmission Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Automotive Brake Fluid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Automotive Brake Fluid | 3 | 1 | 2 | 1 | 3 | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Automotive Brake Fluid", "epdm": "1", "file": "automotive-brake-fluid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "automotive-brake-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Automotive Brake Fluid | 3 | 1 | 2 | 1 | 3 | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Automotive Brake Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** AXAREL 9100\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> AXAREL 9100 | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "AXAREL 9100", "epdm": "X", "file": "axarel-9100.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "axarel-9100", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "AXAREL 9100 | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "AXAREL 9100 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Azobenzene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Azobenzene | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Azobenzene", "epdm": "X", "file": "azobenzene.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "azobenzene", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Azobenzene | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Azobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bardol B\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bardol B | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bardol B", "epdm": "4", "file": "bardol-b.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bardol-b", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Bardol B | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bardol B \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Carbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Carbonate", "epdm": "1", "file": "barium-carbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Barium Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Chlorate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Chlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Chlorate", "epdm": "1", "file": "barium-chlorate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-chlorate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Barium Chlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Chlorate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Chloride", "epdm": "1", "file": "barium-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Barium Chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Cyanide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Cyanide", "epdm": "1", "file": "barium-cyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Barium Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Hydroxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Hydroxide | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Hydroxide", "epdm": "1", "file": "barium-hydroxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-hydroxide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Barium Hydroxide | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Hydroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Iodide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Iodide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Iodide", "epdm": "1", "file": "barium-iodide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-iodide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Barium Iodide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Iodide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Nitrate", "epdm": "1", "file": "barium-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Barium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Oxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Oxide | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Oxide", "epdm": "1", "file": "barium-oxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-oxide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Barium Oxide | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Peroxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Peroxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Peroxide", "epdm": "1", "file": "barium-peroxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-peroxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Barium Peroxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Peroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Polysulfide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Polysulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Polysulfide", "epdm": "1", "file": "barium-polysulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-polysulfide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Barium Polysulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Polysulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Salts\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Salts | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Salts", "epdm": "1", "file": "barium-salts.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-salts", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Barium Salts | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Salts \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Sulfate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Sulfate | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Barium Sulfate", "epdm": "1", "file": "barium-sulfate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "barium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Barium Sulfate | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Barium Sulfide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Barium Sulfide | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Barium Sulfide", "epdm": "1", "file": "barium-sulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "barium-sulfide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Barium Sulfide | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Barium Sulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bayol 35\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bayol 35 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bayol 35", "epdm": "4", "file": "bayol-35.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bayol-35", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Bayol 35 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bayol 35 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bayol D\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bayol D | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bayol D", "epdm": "4", "file": "bayol-d.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bayol-d", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Bayol D | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bayol D \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Beer\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Beer | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Beer", "epdm": "1", "file": "beer.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "beer", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Beer | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Beer \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Beet Sugar Liquids\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Beet Sugar Liquids | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Beet Sugar Liquids", "epdm": "1", "file": "beet-sugar-liquids.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "beet-sugar-liquids", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Beet Sugar Liquids | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Beet Sugar Liquids \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Beet Sugar Liquors\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Beet Sugar Liquors | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Beet Sugar Liquors", "epdm": "1", "file": "beet-sugar-liquors.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "beet-sugar-liquors", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Beet Sugar Liquors | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Beet Sugar Liquors \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzaldehyde Disulfonic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzaldehyde Disulfonic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Benzaldehyde Disulfonic Acid", "epdm": "X", "file": "benzaldehyde-disulfonic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "benzaldehyde-disulfonic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Benzaldehyde Disulfonic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzaldehyde Disulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzaldehyde\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzaldehyde | 4 | 1 | 4 | 4 | 2 | 1 | 4 | 1 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Benzaldehyde", "epdm": "1", "file": "benzaldehyde.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "benzaldehyde", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Benzaldehyde | 4 | 1 | 4 | 4 | 2 | 1 | 4 | 1 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzamide\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzamide | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzamide", "epdm": "4", "file": "benzamide.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzamide", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzamide | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzamide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzanthrone\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzanthrone | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzanthrone", "epdm": "4", "file": "benzanthrone.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzanthrone", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzanthrone | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzanthrone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzene Hexachloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzene Hexachloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Benzene Hexachloride", "epdm": "X", "file": "benzene-hexachloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "benzene-hexachloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Benzene Hexachloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzene Hexachloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzene", "epdm": "4", "file": "benzene.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Benzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzenesulfonic Acid 10%\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzenesulfonic Acid 10% | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 1 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzenesulfonic Acid 10%", "epdm": "4", "file": "benzenesulfonic-acid-10.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "benzenesulfonic-acid-10", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Benzenesulfonic Acid 10% | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 1 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzenesulfonic Acid 10% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzidine 3 Sulfonic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzidine 3 Sulfonic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzidine 3 Sulfonic Acid", "epdm": "4", "file": "benzidine-3-sulfonic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzidine-3-sulfonic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzidine 3 Sulfonic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzidine 3 Sulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzidine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzidine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzidine", "epdm": "4", "file": "benzidine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzidine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzidine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzidine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzil\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzil | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzil", "epdm": "4", "file": "benzil.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzil", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzil | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzilic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzilic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzilic Acid", "epdm": "4", "file": "benzilic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzilic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzilic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzilic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzine (Ligroin)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzine (Ligroin) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzine (Ligroin)", "epdm": "4", "file": "benzine-ligroin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "benzine-ligroin", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Benzine (Ligroin) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzine (Ligroin) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzocatechol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzocatechol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzocatechol", "epdm": "4", "file": "benzocatechol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzocatechol", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzocatechol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzocatechol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzochloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzochloride | 4 | 1 | 4 | 4 | X | 2 | 4 | 4 | 1 | X | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Benzochloride", "epdm": "1", "file": "benzochloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzochloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzochloride | 4 | 1 | 4 | 4 | X | 2 | 4 | 4 | 1 | X | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzochloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzoic Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzoic Acid | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzoic Acid", "epdm": "4", "file": "benzoic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzoic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Benzoic Acid | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzoic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzoin\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzoin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzoin", "epdm": "4", "file": "benzoin.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzoin", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzoin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzoin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzonitrile\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzonitrile | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Benzonitrile", "epdm": "1", "file": "benzonitrile.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "benzonitrile", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Benzonitrile | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzonitrile \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzophenone\n\n**Nitrile (NBR):** X\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzophenone | X | 2 | X | 4 | X | 2 | 4 | X | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Benzophenone", "epdm": "2", "file": "benzophenone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "benzophenone", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzophenone | X | 2 | X | 4 | X | 2 | 4 | X | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzophenone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzoquinone\n\n**Nitrile (NBR):** X\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzoquinone | X | 2 | X | 4 | X | 2 | 4 | X | 1 | 4 | X | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Benzoquinone", "epdm": "2", "file": "benzoquinone.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "benzoquinone", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzoquinone | X | 2 | X | 4 | X | 2 | 4 | X | 1 | 4 | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzoquinone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzotrichloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzotrichloride | 4 | 1 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Benzotrichloride", "epdm": "1", "file": "benzotrichloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "benzotrichloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Benzotrichloride | 4 | 1 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzotrichloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzotrifluoride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzotrifluoride | 4 | 1 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Benzotrifluoride", "epdm": "1", "file": "benzotrifluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "benzotrifluoride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Benzotrifluoride | 4 | 1 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzotrifluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzoyl Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzoyl Chloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzoyl Chloride", "epdm": "X", "file": "benzoyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzoyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzoyl Chloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzoyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzoyl Peroxide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzoyl Peroxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Benzoyl Peroxide", "epdm": "X", "file": "benzoyl-peroxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "benzoyl-peroxide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Benzoyl Peroxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzoyl Peroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzoylsulfonilic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzoylsulfonilic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzoylsulfonilic Acid", "epdm": "4", "file": "benzoylsulfonilic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzoylsulfonilic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzoylsulfonilic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzoylsulfonilic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzyl Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzyl Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Benzyl Acetate", "epdm": "1", "file": "benzyl-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "benzyl-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Benzyl Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzyl Alcohol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzyl Alcohol | 4 | 2 | 2 | 4 | 2 | 2 | 4 | 2 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Benzyl Alcohol", "epdm": "2", "file": "benzyl-alcohol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "benzyl-alcohol", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Benzyl Alcohol | 4 | 2 | 2 | 4 | 2 | 2 | 4 | 2 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzyl Amine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzyl Amine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Benzyl Amine", "epdm": "X", "file": "benzyl-amine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "benzyl-amine", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Benzyl Amine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzyl Amine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzyl Benzoate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzyl Benzoate | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Benzyl Benzoate", "epdm": "4", "file": "benzyl-benzoate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzyl-benzoate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Benzyl Benzoate | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzyl Benzoate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzyl Bromide\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzyl Bromide | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzyl Bromide", "epdm": "4", "file": "benzyl-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzyl-bromide", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Benzyl Bromide | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzyl Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzyl Butyl Phthalate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzyl Butyl Phthalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Benzyl Butyl Phthalate", "epdm": "1", "file": "benzyl-butyl-phthalate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "benzyl-butyl-phthalate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Benzyl Butyl Phthalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzyl Butyl Phthalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzyl Chloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzyl Chloride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzyl Chloride", "epdm": "4", "file": "benzyl-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Benzyl Chloride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzyl Phenol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzyl Phenol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzyl Phenol", "epdm": "4", "file": "benzyl-phenol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzyl-phenol", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzyl Phenol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzyl Phenol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Benzyl Salicylate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Benzyl Salicylate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Benzyl Salicylate", "epdm": "4", "file": "benzyl-salicylate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "benzyl-salicylate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Benzyl Salicylate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Benzyl Salicylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Beryllium Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 3\n\n**SBR:** 3\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Beryllium Chloride | 1 | 1 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 3 | 3 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Beryllium Chloride", "epdm": "1", "file": "beryllium-chloride.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "beryllium-chloride", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "3", "source_quote": "Beryllium Chloride | 1 | 1 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 3 | 3 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Beryllium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Beryllium Fluoride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 3\n\n**SBR:** 3\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Beryllium Fluoride | 1 | 1 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 3 | 3 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Beryllium Fluoride", "epdm": "1", "file": "beryllium-fluoride.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "beryllium-fluoride", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "3", "source_quote": "Beryllium Fluoride | 1 | 1 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 3 | 3 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Beryllium Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Beryllium Oxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 3\n\n**SBR:** 3\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Beryllium Oxide | 1 | 1 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 3 | 3 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Beryllium Oxide", "epdm": "1", "file": "beryllium-oxide.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "beryllium-oxide", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "3", "source_quote": "Beryllium Oxide | 1 | 1 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 3 | 3 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Beryllium Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Beryllium Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Beryllium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Beryllium Sulfate", "epdm": "1", "file": "beryllium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "beryllium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Beryllium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Beryllium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bismuth Carbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bismuth Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Bismuth Carbonate", "epdm": "1", "file": "bismuth-carbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "bismuth-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Bismuth Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bismuth Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bismuth Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bismuth Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Bismuth Nitrate", "epdm": "1", "file": "bismuth-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "bismuth-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Bismuth Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bismuth Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bismuth Oxychloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bismuth Oxychloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Bismuth Oxychloride", "epdm": "1", "file": "bismuth-oxychloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "bismuth-oxychloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Bismuth Oxychloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bismuth Oxychloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bittern\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bittern | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Bittern", "epdm": "X", "file": "bittern.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "bittern", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Bittern | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bittern \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Black Liquor\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 3\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Black Liquor | 2 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 3 |\n\nSource: \n", "butyl": "X", "chemical": "Black Liquor", "epdm": "1", "file": "black-liquor.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "black-liquor", "kalrez": "3", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Black Liquor | 2 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 3 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Black Liquor \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Black Point 77\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 3\n\n**SBR:** 3\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Black Point 77 | 1 | 1 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 3 | 3 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Black Point 77", "epdm": "1", "file": "black-point-77.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "black-point-77", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "3", "source_quote": "Black Point 77 | 1 | 1 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 3 | 3 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Black Point 77 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Blast Furnace Gas\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Blast Furnace Gas | 4 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Blast Furnace Gas", "epdm": "4", "file": "blast-furnace-gas.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "blast-furnace-gas", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Blast Furnace Gas | 4 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Blast Furnace Gas \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bleach Liquor\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 3\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bleach Liquor | 3 | 1 | 2 | 3 | 2 | 1 | 4 | 1 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Bleach Liquor", "epdm": "1", "file": "bleach-liquor.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "bleach-liquor", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "2", "source_quote": "Bleach Liquor | 3 | 1 | 2 | 3 | 2 | 1 | 4 | 1 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bleach Liquor \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bleach Solutions\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bleach Solutions | X | 1 | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Bleach Solutions", "epdm": "1", "file": "bleach-solutions.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "bleach-solutions", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Bleach Solutions | X | 1 | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bleach Solutions \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Borax Solutions\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Borax Solutions | X | 1 | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Borax Solutions", "epdm": "1", "file": "borax-solutions.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "borax-solutions", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Borax Solutions | X | 1 | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Borax Solutions \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Borax\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Borax | 2 | 1 | 4 | 2 | 2 | 1 | 2 | 4 | 1 | 1 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Borax", "epdm": "1", "file": "borax.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "borax", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Borax | 2 | 1 | 4 | 2 | 2 | 1 | 2 | 4 | 1 | 1 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Borax \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bordeaux Mixture\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bordeaux Mixture | 2 | 1 | 2 | 2 | 2 | 1 | 4 | 1 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Bordeaux Mixture", "epdm": "1", "file": "bordeaux-mixture.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "bordeaux-mixture", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Bordeaux Mixture | 2 | 1 | 2 | 2 | 2 | 1 | 4 | 1 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bordeaux Mixture \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Boric Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Boric Acid | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Boric Acid", "epdm": "1", "file": "boric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "boric-acid", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Boric Acid | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Boric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Boric Oxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Boric Oxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Boric Oxide", "epdm": "1", "file": "boric-oxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "boric-oxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Boric Oxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Boric Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Borneol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Borneol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Borneol", "epdm": "4", "file": "borneol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "borneol", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Borneol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Borneol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bornyl Acetate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bornyl Acetate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bornyl Acetate", "epdm": "4", "file": "bornyl-acetate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bornyl-acetate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Bornyl Acetate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bornyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bornyl Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bornyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bornyl Chloride", "epdm": "4", "file": "bornyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bornyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Bornyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bornyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bornyl Formate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bornyl Formate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bornyl Formate", "epdm": "4", "file": "bornyl-formate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bornyl-formate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Bornyl Formate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bornyl Formate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Boron Fluids (HEF)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Boron Fluids (HEF) | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Boron Fluids (HEF)", "epdm": "4", "file": "boron-fluids-hef.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "boron-fluids-hef", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Boron Fluids (HEF) | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Boron Fluids (HEF) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Boron Hydride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Boron Hydride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Boron Hydride", "epdm": "X", "file": "boron-hydride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "boron-hydride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Boron Hydride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Boron Hydride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Boron Phosphate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Boron Phosphate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Boron Phosphate", "epdm": "X", "file": "boron-phosphate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "boron-phosphate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Boron Phosphate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Boron Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Boron Tribromide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Boron Tribromide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Boron Tribromide", "epdm": "X", "file": "boron-tribromide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "boron-tribromide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Boron Tribromide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Boron Tribromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Boron Trichloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Boron Trichloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Boron Trichloride", "epdm": "X", "file": "boron-trichloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "boron-trichloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Boron Trichloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Boron Trichloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Boron Trifluoride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Boron Trifluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Boron Trifluoride", "epdm": "X", "file": "boron-trifluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "boron-trifluoride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Boron Trifluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Boron Trifluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Boron Trioxide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Boron Trioxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Boron Trioxide", "epdm": "X", "file": "boron-trioxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "boron-trioxide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Boron Trioxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Boron Trioxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Brake Fluid DOT3 (Glycol Type)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Brake Fluid DOT3 (Glycol Type) | 3 | 1 | 2 | 1 | 3 | 2 | X | 2 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Brake Fluid DOT3 (Glycol Type)", "epdm": "1", "file": "brake-fluid-dot3-glycol-type.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "brake-fluid-dot3-glycol-type", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "X", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Brake Fluid DOT3 (Glycol Type) | 3 | 1 | 2 | 1 | 3 | 2 | X | 2 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Brake Fluid DOT3 (Glycol Type) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bray GG-130\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bray GG-130 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bray GG-130", "epdm": "4", "file": "bray-gg-130.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bray-gg-130", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Bray GG-130 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bray GG-130 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Brayco 719-R (VV-H-910)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Brayco 719-R (VV-H-910) | 3 | 1 | 2 | X | 2 | 2 | 4 | 2 | 4 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Brayco 719-R (VV-H-910)", "epdm": "1", "file": "brayco-719-r-vv-h-910.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "brayco-719-r-vv-h-910", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "2", "source_quote": "Brayco 719-R (VV-H-910) | 3 | 1 | 2 | X | 2 | 2 | 4 | 2 | 4 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Brayco 719-R (VV-H-910) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Brayco 885 (MIL-L-6085A)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Brayco 885 (MIL-L-6085A) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Brayco 885 (MIL-L-6085A)", "epdm": "4", "file": "brayco-885-mil-l-6085a.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "brayco-885-mil-l-6085a", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Brayco 885 (MIL-L-6085A) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Brayco 885 (MIL-L-6085A) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Brayco 910\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Brayco 910 | 2 | 1 | 2 | 2 | 4 | 1 | 3 | 1 | 4 | 3 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Brayco 910", "epdm": "1", "file": "brayco-910.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "brayco-910", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Brayco 910 | 2 | 1 | 2 | 2 | 4 | 1 | 3 | 1 | 4 | 3 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Brayco 910 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bret 710\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bret 710 | 2 | 1 | 2 | 2 | 4 | 1 | 3 | 1 | 4 | 3 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Bret 710", "epdm": "1", "file": "bret-710.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "bret-710", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Bret 710 | 2 | 1 | 2 | 2 | 4 | 1 | 3 | 1 | 4 | 3 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bret 710 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Brine (Seawater)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Brine (Seawater) | 1 | 1 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Brine (Seawater)", "epdm": "1", "file": "brine-seawater.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "brine-seawater", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Brine (Seawater) | 1 | 1 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Brine (Seawater) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Brine\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Brine | 1 | 1 | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Brine", "epdm": "1", "file": "brine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "brine", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Brine | 1 | 1 | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Brine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Brom - 113\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Brom - 113 | 3 | 4 | 4 | 4 | 4 | 4 | X | 4 | X | X | X | 3 | X |\n\nSource: \n", "butyl": "4", "chemical": "Brom - 113", "epdm": "4", "file": "brom-113.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "brom-113", "kalrez": "X", "neoprene": "4", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Brom - 113 | 3 | 4 | 4 | 4 | 4 | 4 | X | 4 | X | X | X | 3 | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Brom - 113 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Brom - 114\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Brom - 114 | 2 | 4 | 2 | 4 | 4 | 4 | X | 2 | 2 | X | X | 3 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Brom - 114", "epdm": "4", "file": "brom-114.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "brom-114", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Brom - 114 | 2 | 4 | 2 | 4 | 4 | 4 | X | 2 | 2 | X | X | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Brom - 114 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Bromic Acid", "epdm": "1", "file": "bromic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "bromic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Bromic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromine Pentafluoride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromine Pentafluoride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Bromine Pentafluoride", "epdm": "4", "file": "bromine-pentafluoride.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bromine-pentafluoride", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Bromine Pentafluoride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromine Pentafluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromine Trifluoride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromine Trifluoride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Bromine Trifluoride", "epdm": "4", "file": "bromine-trifluoride.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bromine-trifluoride", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Bromine Trifluoride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromine Trifluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromine Water\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromine Water | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 1 | 1 | 4 | 2 | 3 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bromine Water", "epdm": "2", "file": "bromine-water.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "bromine-water", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Bromine Water | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 1 | 1 | 4 | 2 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromine Water \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromine\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromine | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bromine", "epdm": "4", "file": "bromine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bromine", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Bromine | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromobenzene Cyanide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromobenzene Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Bromobenzene Cyanide", "epdm": "1", "file": "bromobenzene-cyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "bromobenzene-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Bromobenzene Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromobenzene Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromobenzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bromobenzene", "epdm": "4", "file": "bromobenzene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bromobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Bromobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromochlorotrifluoroethane (Halothane)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromochlorotrifluoroethane (Halothane) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bromochlorotrifluoroethane (Halothane)", "epdm": "4", "file": "bromochlorotrifluoroethane-halothane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bromochlorotrifluoroethane-halothane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Bromochlorotrifluoroethane (Halothane) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromochlorotrifluoroethane (Halothane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromoform\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromoform | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bromoform", "epdm": "4", "file": "bromoform.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bromoform", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Bromoform | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromoform \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromomethane (Methyl Bromide)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromomethane (Methyl Bromide) | 2 | 4 | 4 | 4 | X | 4 | 3 | 4 | 1 | X | 1 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bromomethane (Methyl Bromide)", "epdm": "4", "file": "bromomethane-methyl-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bromomethane-methyl-bromide", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "3", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Bromomethane (Methyl Bromide) | 2 | 4 | 4 | 4 | X | 4 | 3 | 4 | 1 | X | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromomethane (Methyl Bromide) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromotrifluoroethylene (BFE)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromotrifluoroethylene (BFE) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Bromotrifluoroethylene (BFE)", "epdm": "X", "file": "bromotrifluoroethylene-bfe.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "bromotrifluoroethylene-bfe", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Bromotrifluoroethylene (BFE) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromotrifluoroethylene (BFE) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bromotrifluoromethane (F-13B1)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bromotrifluoromethane (F-13B1) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Bromotrifluoromethane (F-13B1)", "epdm": "X", "file": "bromotrifluoromethane-f-13b1.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "bromotrifluoromethane-f-13b1", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Bromotrifluoromethane (F-13B1) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bromotrifluoromethane (F-13B1) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Brucine Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Brucine Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Brucine Sulfate", "epdm": "1", "file": "brucine-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "brucine-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Brucine Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Brucine Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Buffered Oxide Etchants\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Buffered Oxide Etchants | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Buffered Oxide Etchants", "epdm": "X", "file": "buffered-oxide-etchants.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "buffered-oxide-etchants", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Buffered Oxide Etchants | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Buffered Oxide Etchants \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bunker Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bunker Oil | 1 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 1 | 2 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Bunker Oil", "epdm": "4", "file": "bunker-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "bunker-oil", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Bunker Oil | 1 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 1 | 2 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bunker Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Bunker\u2019s \u201cC\u201d (Fuel Oil)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Bunker\u2019s \u201cC\u201d (Fuel Oil) | 1 | X | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Bunker\u2019s \u201cC\u201d (Fuel Oil)", "epdm": "X", "file": "bunker-s-c-fuel-oil.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "bunker-s-c-fuel-oil", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Bunker\u2019s \u201cC\u201d (Fuel Oil) | 1 | X | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Bunker\u2019s \u201cC\u201d (Fuel Oil) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butadiene (Monomer)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butadiene (Monomer) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butadiene (Monomer)", "epdm": "4", "file": "butadiene-monomer.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butadiene-monomer", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Butadiene (Monomer) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butadiene (Monomer) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butane, 2, 2-Dimethyl\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 3\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butane, 2, 2-Dimethyl | 1 | 4 | 2 | 3 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butane, 2, 2-Dimethyl", "epdm": "4", "file": "butane-2-2-dimethyl.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "butane-2-2-dimethyl", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "4", "source_quote": "Butane, 2, 2-Dimethyl | 1 | 4 | 2 | 3 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butane, 2, 2-Dimethyl \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butane, 2, 3-Dimethyl\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 3\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butane, 2, 3-Dimethyl | 1 | 4 | 2 | 3 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butane, 2, 3-Dimethyl", "epdm": "4", "file": "butane-2-3-dimethyl.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "butane-2-3-dimethyl", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "4", "source_quote": "Butane, 2, 3-Dimethyl | 1 | 4 | 2 | 3 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butane, 2, 3-Dimethyl \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 3\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butane | 1 | 4 | 1 | 3 | 4 | 4 | 1 | 2 | 1 | 1 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butane", "epdm": "4", "file": "butane.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "butane", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "4", "source_quote": "Butane | 1 | 4 | 1 | 3 | 4 | 4 | 1 | 2 | 1 | 1 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butanedial\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butanedial | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butanedial", "epdm": "1", "file": "butanedial.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butanedial", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butanedial | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butanedial \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butanol (Butyl Alcohol)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butanol (Butyl Alcohol) | 1 | 2 | 1 | 1 | 2 | 2 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Butanol (Butyl Alcohol)", "epdm": "2", "file": "butanol-butyl-alcohol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butanol-butyl-alcohol", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butanol (Butyl Alcohol) | 1 | 2 | 1 | 1 | 2 | 2 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butanol (Butyl Alcohol) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butene 2-Ethyl (1-Butene 2-Ethyl)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butene 2-Ethyl (1-Butene 2-Ethyl) | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 4 | 3 | 1 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butene 2-Ethyl (1-Butene 2-Ethyl)", "epdm": "4", "file": "butene-2-ethyl-1-butene-2-ethyl.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butene-2-ethyl-1-butene-2-ethyl", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Butene 2-Ethyl (1-Butene 2-Ethyl) | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 4 | 3 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butene 2-Ethyl (1-Butene 2-Ethyl) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butter-Animal Fat\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butter-Animal Fat | 1 | 1 | 2 | 4 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Butter-Animal Fat", "epdm": "1", "file": "butter-animal-fat.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "butter-animal-fat", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Butter-Animal Fat | 1 | 1 | 2 | 4 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butter-Animal Fat \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Acetate or n-Butyl Acetate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Acetate or n-Butyl Acetate | 4 | 2 | 4 | 4 | X | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butyl Acetate or n-Butyl Acetate", "epdm": "2", "file": "butyl-acetate-or-n-butyl-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butyl-acetate-or-n-butyl-acetate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butyl Acetate or n-Butyl Acetate | 4 | 2 | 4 | 4 | X | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Acetate or n-Butyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Acetyl Ricinoleate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Acetyl Ricinoleate | 2 | 1 | 2 | 4 | X | 1 | X | 2 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butyl Acetyl Ricinoleate", "epdm": "1", "file": "butyl-acetyl-ricinoleate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "butyl-acetyl-ricinoleate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butyl Acetyl Ricinoleate | 2 | 1 | 2 | 4 | X | 1 | X | 2 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Acetyl Ricinoleate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Acrylate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Acrylate | 4 | 1 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | X | 4 | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butyl Acrylate", "epdm": "1", "file": "butyl-acrylate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butyl-acrylate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Butyl Acrylate | 4 | 1 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | X | 4 | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Acrylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Alcohol (Secondary)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Alcohol (Secondary) | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Butyl Alcohol (Secondary)", "epdm": "2", "file": "butyl-alcohol-secondary.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "butyl-alcohol-secondary", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Butyl Alcohol (Secondary) | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Alcohol (Secondary) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Alcohol (Tertiary)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Alcohol (Tertiary) | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Butyl Alcohol (Tertiary)", "epdm": "2", "file": "butyl-alcohol-tertiary.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "butyl-alcohol-tertiary", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Butyl Alcohol (Tertiary) | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Alcohol (Tertiary) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Alcohol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Alcohol | 1 | 2 | 1 | 1 | 2 | 2 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Butyl Alcohol", "epdm": "2", "file": "butyl-alcohol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyl-alcohol", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butyl Alcohol | 1 | 2 | 1 | 1 | 2 | 2 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Amine or N-Butyl Amine\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Amine or N-Butyl Amine | 1 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butyl Amine or N-Butyl Amine", "epdm": "3", "file": "butyl-amine-or-n-butyl-amine.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butyl-amine-or-n-butyl-amine", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Butyl Amine or N-Butyl Amine | 1 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Amine or N-Butyl Amine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Benzoate or n-Butyl Benzoate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Benzoate or n-Butyl Benzoate | 4 | 1 | 2 | 4 | X | 4 | X | 1 | 1 | 1 | X | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butyl Benzoate or n-Butyl Benzoate", "epdm": "1", "file": "butyl-benzoate-or-n-butyl-benzoate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyl-benzoate-or-n-butyl-benzoate", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butyl Benzoate or n-Butyl Benzoate | 4 | 1 | 2 | 4 | X | 4 | X | 1 | 1 | 1 | X | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Benzoate or n-Butyl Benzoate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Benzoate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Benzoate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butyl Benzoate", "epdm": "1", "file": "butyl-benzoate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyl-benzoate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butyl Benzoate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Benzoate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Benzolate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Benzolate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Butyl Benzolate", "epdm": "X", "file": "butyl-benzolate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "butyl-benzolate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Butyl Benzolate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Benzolate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Butyrate or n-Butyl Butyrate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Butyrate or n-Butyl Butyrate | 4 | 1 | 4 | 4 | X | 4 | X | 1 | 1 | 1 | X | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butyl Butyrate or n-Butyl Butyrate", "epdm": "1", "file": "butyl-butyrate-or-n-butyl-butyrate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyl-butyrate-or-n-butyl-butyrate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butyl Butyrate or n-Butyl Butyrate | 4 | 1 | 4 | 4 | X | 4 | X | 1 | 1 | 1 | X | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Butyrate or n-Butyl Butyrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Carbitol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Carbitol | 4 | 1 | 3 | 4 | 4 | 1 | 4 | 2 | 3 | X | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butyl Carbitol", "epdm": "1", "file": "butyl-carbitol.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "butyl-carbitol", "kalrez": "1", "neoprene": "3", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Butyl Carbitol | 4 | 1 | 3 | 4 | 4 | 1 | 4 | 2 | 3 | X | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Carbitol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Cellosolve Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Cellosolve Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butyl Cellosolve Acetate", "epdm": "1", "file": "butyl-cellosolve-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyl-cellosolve-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butyl Cellosolve Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Cellosolve Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Cellosolve Adipate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Cellosolve Adipate | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Butyl Cellosolve Adipate", "epdm": "2", "file": "butyl-cellosolve-adipate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butyl-cellosolve-adipate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Butyl Cellosolve Adipate | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Cellosolve Adipate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Cellosolve\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Cellosolve | 3 | 2 | 3 | 4 | X | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Butyl Cellosolve", "epdm": "2", "file": "butyl-cellosolve.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butyl-cellosolve", "kalrez": "1", "neoprene": "3", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butyl Cellosolve | 3 | 2 | 3 | 4 | X | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Cellosolve \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Chloride | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butyl Chloride", "epdm": "4", "file": "butyl-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "butyl-chloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Butyl Chloride | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Ether or n-Butyl Ether\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Ether or n-Butyl Ether | 3 | 3 | 4 | 4 | X | 4 | 3 | 3 | 4 | 3 | 4 | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butyl Ether or n-Butyl Ether", "epdm": "3", "file": "butyl-ether-or-n-butyl-ether.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "butyl-ether-or-n-butyl-ether", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butyl Ether or n-Butyl Ether | 3 | 3 | 4 | 4 | X | 4 | 3 | 3 | 4 | 3 | 4 | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Ether or n-Butyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Glycolate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Glycolate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butyl Glycolate", "epdm": "1", "file": "butyl-glycolate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyl-glycolate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butyl Glycolate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Glycolate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Lactate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butyl Lactate", "epdm": "1", "file": "butyl-lactate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyl-lactate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butyl Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Lactate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Laurate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Laurate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butyl Laurate", "epdm": "1", "file": "butyl-laurate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyl-laurate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butyl Laurate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Laurate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Mercaptan (Tertiary)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Mercaptan (Tertiary) | 4 | 4 | 4 | 4 | X | 4 | 4 | X | 1 | 4 | 4 | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butyl Mercaptan (Tertiary)", "epdm": "4", "file": "butyl-mercaptan-tertiary.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "butyl-mercaptan-tertiary", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butyl Mercaptan (Tertiary) | 4 | 4 | 4 | 4 | X | 4 | 4 | X | 1 | 4 | 4 | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Mercaptan (Tertiary) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Methacrylate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Methacrylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butyl Methacrylate", "epdm": "1", "file": "butyl-methacrylate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyl-methacrylate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butyl Methacrylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Methacrylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Oleate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Oleate | 4 | 2 | 4 | 4 | X | 2 | X | 4 | 1 | X | 2 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Butyl Oleate", "epdm": "2", "file": "butyl-oleate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butyl-oleate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butyl Oleate | 4 | 2 | 4 | 4 | X | 2 | X | 4 | 1 | X | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Oleate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Oxalate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butyl Oxalate", "epdm": "1", "file": "butyl-oxalate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyl-oxalate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butyl Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Oxalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyl Stearate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyl Stearate | 2 | 4 | 4 | 4 | X | 4 | X | 4 | 1 | X | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butyl Stearate", "epdm": "4", "file": "butyl-stearate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butyl-stearate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butyl Stearate | 2 | 4 | 4 | 4 | X | 4 | X | 4 | 1 | X | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyl Stearate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butylbenzoic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butylbenzoic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butylbenzoic Acid", "epdm": "4", "file": "butylbenzoic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butylbenzoic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butylbenzoic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butylbenzoic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butylene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butylene | 2 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butylene", "epdm": "4", "file": "butylene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butylene", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Butylene | 2 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyraldehyde\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyraldehyde | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Butyraldehyde", "epdm": "2", "file": "butyraldehyde.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butyraldehyde", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Butyraldehyde | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyraldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyric Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyric Acid | 4 | 2 | 4 | 4 | X | 2 | 4 | 4 | 2 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Butyric Acid", "epdm": "2", "file": "butyric-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butyric-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butyric Acid | 4 | 2 | 4 | 4 | X | 2 | 4 | 4 | 2 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyric Anhydride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyric Anhydride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butyric Anhydride", "epdm": "1", "file": "butyric-anhydride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyric-anhydride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butyric Anhydride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyric Anhydride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyrolacetone\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyrolacetone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Butyrolacetone", "epdm": "1", "file": "butyrolacetone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "butyrolacetone", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Butyrolacetone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart"], "stale_after": "2028-08-11", "title": "Butyrolacetone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Butyryl Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Butyryl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Butyryl Chloride", "epdm": "4", "file": "butyryl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "butyryl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Butyryl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Butyryl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cadmium Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cadmium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cadmium Chloride", "epdm": "1", "file": "cadmium-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cadmium-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cadmium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cadmium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cadmium Cyanide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cadmium Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cadmium Cyanide", "epdm": "1", "file": "cadmium-cyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cadmium-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cadmium Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cadmium Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cadmium Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cadmium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cadmium Nitrate", "epdm": "1", "file": "cadmium-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cadmium-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cadmium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cadmium Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cadmium Oxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cadmium Oxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cadmium Oxide", "epdm": "1", "file": "cadmium-oxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cadmium-oxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cadmium Oxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cadmium Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cadmium Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cadmium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cadmium Sulfate", "epdm": "1", "file": "cadmium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cadmium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cadmium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cadmium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cadmium Sulfide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cadmium Sulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cadmium Sulfide", "epdm": "1", "file": "cadmium-sulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cadmium-sulfide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cadmium Sulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cadmium Sulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcine Liquors\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcine Liquors | 1 | 1 | X | X | X | 1 | 4 | X | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcine Liquors", "epdm": "1", "file": "calcine-liquors.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "calcine-liquors", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Calcine Liquors | 1 | 1 | X | X | X | 1 | 4 | X | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcine Liquors \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Acetate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Acetate", "epdm": "1", "file": "calcium-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "calcium-acetate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Calcium Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Arsenate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Arsenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Arsenate", "epdm": "1", "file": "calcium-arsenate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-arsenate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Arsenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Arsenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Benzoate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Benzoate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Calcium Benzoate", "epdm": "4", "file": "calcium-benzoate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "calcium-benzoate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Calcium Benzoate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Benzoate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Bicarbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Bicarbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Bicarbonate", "epdm": "1", "file": "calcium-bicarbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-bicarbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Bicarbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Bicarbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Bisulfide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Bisulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Bisulfide", "epdm": "1", "file": "calcium-bisulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-bisulfide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Bisulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Bisulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Bisulfite\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Bisulfite | 2 | 1 | 2 | 2 | 3 | 1 | 3 | 1 | 2 | 3 | 3 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Bisulfite", "epdm": "1", "file": "calcium-bisulfite.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-bisulfite", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "3", "source_quote": "Calcium Bisulfite | 2 | 1 | 2 | 2 | 3 | 1 | 3 | 1 | 2 | 3 | 3 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Bisulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Bromide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Bromide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Bromide", "epdm": "1", "file": "calcium-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-bromide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Calcium Bromide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Carbide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Carbide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Calcium Carbide", "epdm": "X", "file": "calcium-carbide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "calcium-carbide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Calcium Carbide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Carbide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Carbonate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Carbonate | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Carbonate", "epdm": "1", "file": "calcium-carbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Calcium Carbonate | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Chlorate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Chlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Chlorate", "epdm": "1", "file": "calcium-chlorate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-chlorate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Chlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Chlorate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Chloride", "epdm": "1", "file": "calcium-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Calcium Chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Chromate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Chromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Chromate", "epdm": "1", "file": "calcium-chromate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-chromate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Chromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Chromate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Cyanamide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Cyanamide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Calcium Cyanamide", "epdm": "X", "file": "calcium-cyanamide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "calcium-cyanamide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Calcium Cyanamide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Cyanamide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Cyanide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | X | X | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Cyanide", "epdm": "1", "file": "calcium-cyanide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Calcium Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | X | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Fluoride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Fluoride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Fluoride", "epdm": "1", "file": "calcium-fluoride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-fluoride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Calcium Fluoride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Gluconate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Gluconate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Gluconate", "epdm": "1", "file": "calcium-gluconate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-gluconate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Gluconate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Gluconate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Hydride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Hydride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Hydride", "epdm": "1", "file": "calcium-hydride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-hydride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Calcium Hydride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Hydride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Hydrosulfide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Hydrosulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Hydrosulfide", "epdm": "1", "file": "calcium-hydrosulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-hydrosulfide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Hydrosulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Hydrosulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Hydroxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Hydroxide | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Hydroxide", "epdm": "1", "file": "calcium-hydroxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-hydroxide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Calcium Hydroxide | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Hydroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Hypochlorite\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Hypochlorite | 2 | 1 | 2 | 2 | 2 | 1 | 4 | 1 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Hypochlorite", "epdm": "1", "file": "calcium-hypochlorite.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-hypochlorite", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Calcium Hypochlorite | 2 | 1 | 2 | 2 | 2 | 1 | 4 | 1 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Hypochlorite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Hypophosphite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Hypophosphite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Hypophosphite", "epdm": "1", "file": "calcium-hypophosphite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-hypophosphite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Hypophosphite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Hypophosphite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Lactate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Lactate", "epdm": "1", "file": "calcium-lactate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-lactate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Lactate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Naphthenate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Calcium Naphthenate", "epdm": "X", "file": "calcium-naphthenate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "calcium-naphthenate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Calcium Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Naphthenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Nitrate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Nitrate | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Nitrate", "epdm": "1", "file": "calcium-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Nitrate | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Oxalate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Oxalate", "epdm": "1", "file": "calcium-oxalate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-oxalate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Oxalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Oxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Oxide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Oxide", "epdm": "1", "file": "calcium-oxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-oxide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Calcium Oxide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Permanganate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Permanganate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Calcium Permanganate", "epdm": "X", "file": "calcium-permanganate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "calcium-permanganate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Calcium Permanganate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Permanganate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Peroxide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Peroxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Calcium Peroxide", "epdm": "X", "file": "calcium-peroxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "calcium-peroxide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Calcium Peroxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Peroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Phenolsulfonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Phenolsulfonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Phenolsulfonate", "epdm": "1", "file": "calcium-phenolsulfonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-phenolsulfonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Phenolsulfonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Phenolsulfonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Phosphate Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Phosphate Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Phosphate Acid", "epdm": "1", "file": "calcium-phosphate-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-phosphate-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Phosphate Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Phosphate Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Phosphate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Phosphate | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Phosphate", "epdm": "1", "file": "calcium-phosphate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-phosphate", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Calcium Phosphate | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Propionate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Propionate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Propionate", "epdm": "1", "file": "calcium-propionate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-propionate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Propionate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Propionate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Pyridine Sulfonate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Pyridine Sulfonate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Calcium Pyridine Sulfonate", "epdm": "X", "file": "calcium-pyridine-sulfonate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "calcium-pyridine-sulfonate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Calcium Pyridine Sulfonate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Pyridine Sulfonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Salts\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Salts | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Salts", "epdm": "1", "file": "calcium-salts.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-salts", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Salts | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Salts \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Silicate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Silicate | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Silicate", "epdm": "1", "file": "calcium-silicate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-silicate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Calcium Silicate | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Silicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Stearate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Stearate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Calcium Stearate", "epdm": "4", "file": "calcium-stearate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "calcium-stearate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Calcium Stearate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Stearate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Sulfamate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Sulfamate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Calcium Sulfamate", "epdm": "4", "file": "calcium-sulfamate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "calcium-sulfamate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Calcium Sulfamate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Sulfamate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Sulfate", "epdm": "1", "file": "calcium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Sulfide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Sulfide | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Sulfide", "epdm": "1", "file": "calcium-sulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-sulfide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Calcium Sulfide | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Sulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Sulfite\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Sulfite | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Sulfite", "epdm": "1", "file": "calcium-sulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-sulfite", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Calcium Sulfite | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Sulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Thiocyanate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Thiocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Thiocyanate", "epdm": "1", "file": "calcium-thiocyanate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-thiocyanate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Thiocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Thiocyanate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Thiosulfate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Thiosulfate | 2 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Thiosulfate", "epdm": "1", "file": "calcium-thiosulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-thiosulfate", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Calcium Thiosulfate | 2 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Thiosulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Calcium Tungstate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Calcium Tungstate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Calcium Tungstate", "epdm": "1", "file": "calcium-tungstate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "calcium-tungstate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Calcium Tungstate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Calcium Tungstate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Caliche Liquors\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Caliche Liquors | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Caliche Liquors", "epdm": "1", "file": "caliche-liquors.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "caliche-liquors", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Caliche Liquors | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Caliche Liquors \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Camphene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Camphene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Camphene", "epdm": "4", "file": "camphene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "camphene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Camphene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Camphene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Camphor\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Camphor | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Camphor", "epdm": "4", "file": "camphor.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "camphor", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Camphor | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Camphor \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Camphoric Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Camphoric Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Camphoric Acid", "epdm": "4", "file": "camphoric-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "camphoric-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Camphoric Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Camphoric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cane Sugar Liquors\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cane Sugar Liquors | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cane Sugar Liquors", "epdm": "1", "file": "cane-sugar-liquors.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cane-sugar-liquors", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Cane Sugar Liquors | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cane Sugar Liquors \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Capric Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Capric Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Capric Acid", "epdm": "4", "file": "capric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "capric-acid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Capric Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Capric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Caproic Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Caproic Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Caproic Acid", "epdm": "4", "file": "caproic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "caproic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Caproic Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Caproic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Caproic Aldehyde\n\n**Nitrile (NBR):** X\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Caproic Aldehyde | X | 2 | X | X | 2 | 2 | 4 | X | 4 | 4 | 4 | 3 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Caproic Aldehyde", "epdm": "2", "file": "caproic-aldehyde.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "caproic-aldehyde", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "2", "source_quote": "Caproic Aldehyde | X | 2 | X | X | 2 | 2 | 4 | X | 4 | 4 | 4 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Caproic Aldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Caprolactam\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Caprolactam | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Caprolactam", "epdm": "4", "file": "caprolactam.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "caprolactam", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Caprolactam | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Caprolactam \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Capronaldehyde\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Capronaldehyde | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Capronaldehyde", "epdm": "4", "file": "capronaldehyde.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "capronaldehyde", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Capronaldehyde | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Capronaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbamate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbamate | 3 | 2 | 2 | 4 | X | 2 | 4 | 2 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Carbamate", "epdm": "2", "file": "carbamate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "carbamate", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Carbamate | 3 | 2 | 2 | 4 | X | 2 | 4 | 2 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbamate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbazole\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbazole | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Carbazole", "epdm": "X", "file": "carbazole.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "carbazole", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Carbazole | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbazole \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbitol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbitol | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 2 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Carbitol", "epdm": "2", "file": "carbitol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "carbitol", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Carbitol | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 2 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbitol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbolic Acid (Phenol)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbolic Acid (Phenol) | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 1 | 3 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Carbolic Acid (Phenol)", "epdm": "2", "file": "carbolic-acid-phenol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "carbolic-acid-phenol", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Carbolic Acid (Phenol) | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 1 | 3 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbolic Acid (Phenol) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbon Bisulfide\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbon Bisulfide | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | X | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Carbon Bisulfide", "epdm": "4", "file": "carbon-bisulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "carbon-bisulfide", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "3", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Carbon Bisulfide | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | X | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbon Bisulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbon Dioxide (Explosive Decompression Use)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbon Dioxide (Explosive Decompression Use) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Carbon Dioxide (Explosive Decompression Use)", "epdm": "1", "file": "carbon-dioxide-explosive-decompression-use.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "carbon-dioxide-explosive-decompression-use", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Carbon Dioxide (Explosive Decompression Use) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbon Dioxide (Explosive Decompression Use) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbon Dioxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbon Dioxide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Carbon Dioxide", "epdm": "1", "file": "carbon-dioxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "carbon-dioxide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Carbon Dioxide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbon Dioxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbon Disulfide\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbon Disulfide | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | X | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Carbon Disulfide", "epdm": "4", "file": "carbon-disulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "carbon-disulfide", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "3", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Carbon Disulfide | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | X | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbon Disulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbon Fluorides\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbon Fluorides | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Carbon Fluorides", "epdm": "4", "file": "carbon-fluorides.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "carbon-fluorides", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Carbon Fluorides | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbon Fluorides \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbon Monoxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbon Monoxide | 1 | 1 | 2 | 2 | 1 | 1 | X | 2 | 1 | 1 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Carbon Monoxide", "epdm": "1", "file": "carbon-monoxide.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "carbon-monoxide", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Carbon Monoxide | 1 | 1 | 2 | 2 | 1 | 1 | X | 2 | 1 | 1 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbon Monoxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbon Tetrabromide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbon Tetrabromide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Carbon Tetrabromide", "epdm": "X", "file": "carbon-tetrabromide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "carbon-tetrabromide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Carbon Tetrabromide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbon Tetrabromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbon Tetrachloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbon Tetrachloride | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Carbon Tetrachloride", "epdm": "4", "file": "carbon-tetrachloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "carbon-tetrachloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Carbon Tetrachloride | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbon Tetrachloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbon Tetrafluoride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbon Tetrafluoride | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Carbon Tetrafluoride", "epdm": "4", "file": "carbon-tetrafluoride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "carbon-tetrafluoride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Carbon Tetrafluoride | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbon Tetrafluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Carbonic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Carbonic Acid | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Carbonic Acid", "epdm": "1", "file": "carbonic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "carbonic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Carbonic Acid | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Carbonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Casein\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Casein | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Casein", "epdm": "1", "file": "casein.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "casein", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Casein | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Casein \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Castor Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Castor Oil | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Castor Oil", "epdm": "2", "file": "castor-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "castor-oil", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Castor Oil | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Castor Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Caustic Lime\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Caustic Lime | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Caustic Lime", "epdm": "1", "file": "caustic-lime.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "caustic-lime", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Caustic Lime | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Caustic Lime \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Caustic Potash\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Caustic Potash | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Caustic Potash", "epdm": "1", "file": "caustic-potash.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "caustic-potash", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Caustic Potash | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Caustic Potash \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Caustic Soda (Sodium Hydroxide)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Caustic Soda (Sodium Hydroxide) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Caustic Soda (Sodium Hydroxide)", "epdm": "1", "file": "caustic-soda-sodium-hydroxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "caustic-soda-sodium-hydroxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Caustic Soda (Sodium Hydroxide) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Caustic Soda (Sodium Hydroxide) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cellosolve, Acetate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cellosolve, Acetate | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Cellosolve, Acetate", "epdm": "2", "file": "cellosolve-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cellosolve-acetate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cellosolve, Acetate | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cellosolve, Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cellosolve, Butyl\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cellosolve, Butyl | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Cellosolve, Butyl", "epdm": "2", "file": "cellosolve-butyl.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cellosolve-butyl", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cellosolve, Butyl | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cellosolve, Butyl \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cellosolve\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cellosolve | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Cellosolve", "epdm": "2", "file": "cellosolve.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cellosolve", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cellosolve | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cellosolve \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Celluguard\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Celluguard | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Celluguard", "epdm": "1", "file": "celluguard.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "celluguard", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "3", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Celluguard | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Celluguard \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cellulose Acetate Butyrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cellulose Acetate Butyrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cellulose Acetate Butyrate", "epdm": "1", "file": "cellulose-acetate-butyrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cellulose-acetate-butyrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cellulose Acetate Butyrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cellulose Acetate Butyrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cellulose Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cellulose Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cellulose Acetate", "epdm": "1", "file": "cellulose-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cellulose-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cellulose Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cellulose Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cellulose Ether\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cellulose Ether | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cellulose Ether", "epdm": "1", "file": "cellulose-ether.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cellulose-ether", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cellulose Ether | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cellulose Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cellulose Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cellulose Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cellulose Nitrate", "epdm": "1", "file": "cellulose-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cellulose-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cellulose Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cellulose Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cellulose Tripropionate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cellulose Tripropionate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cellulose Tripropionate", "epdm": "1", "file": "cellulose-tripropionate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cellulose-tripropionate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cellulose Tripropionate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cellulose Tripropionate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cellulube (Phosphate Esters)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cellulube (Phosphate Esters) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cellulube (Phosphate Esters)", "epdm": "X", "file": "cellulube-phosphate-esters.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cellulube-phosphate-esters", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cellulube (Phosphate Esters) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cellulube (Phosphate Esters) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cellutherm 2505A\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cellutherm 2505A | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cellutherm 2505A", "epdm": "4", "file": "cellutherm-2505a.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cellutherm-2505a", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cellutherm 2505A | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cellutherm 2505A \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cerium Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cerium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cerium Sulfate", "epdm": "1", "file": "cerium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cerium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cerium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cerium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cerous Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cerous Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cerous Chloride", "epdm": "1", "file": "cerous-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cerous-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cerous Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cerous Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cerous Fluoride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cerous Fluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cerous Fluoride", "epdm": "1", "file": "cerous-fluoride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cerous-fluoride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cerous Fluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cerous Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cerous Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cerous Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cerous Nitrate", "epdm": "1", "file": "cerous-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cerous-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cerous Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cerous Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cetane (Hexadecane)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cetane (Hexadecane) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cetane (Hexadecane)", "epdm": "4", "file": "cetane-hexadecane.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "cetane-hexadecane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cetane (Hexadecane) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cetane (Hexadecane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cetyl Alcohol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cetyl Alcohol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cetyl Alcohol", "epdm": "4", "file": "cetyl-alcohol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "cetyl-alcohol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Cetyl Alcohol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cetyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chaulmoogric Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chaulmoogric Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chaulmoogric Acid", "epdm": "X", "file": "chaulmoogric-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chaulmoogric-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chaulmoogric Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chaulmoogric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** China Wood Oil (Tung Oil)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> China Wood Oil (Tung Oil) | 1 | 4 | 2 | 4 | 4 | 3 | X | 3 | 1 | 3 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "3", "chemical": "China Wood Oil (Tung Oil)", "epdm": "4", "file": "china-wood-oil-tung-oil.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "china-wood-oil-tung-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "China Wood Oil (Tung Oil) | 1 | 4 | 2 | 4 | 4 | 3 | X | 3 | 1 | 3 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "China Wood Oil (Tung Oil) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloral\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloral | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Chloral", "epdm": "1", "file": "chloral.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chloral", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Chloral | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloral \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloramine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloramine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chloramine", "epdm": "X", "file": "chloramine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chloramine", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chloramine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloramine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloranthraquinone\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloranthraquinone | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chloranthraquinone", "epdm": "4", "file": "chloranthraquinone.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chloranthraquinone", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chloranthraquinone | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloranthraquinone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlordane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlordane | 2 | 4 | 3 | 4 | 4 | 4 | X | 3 | 1 | X | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlordane", "epdm": "4", "file": "chlordane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "chlordane", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlordane | 2 | 4 | 3 | 4 | 4 | 4 | X | 3 | 1 | X | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlordane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorextol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorextol | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorextol", "epdm": "4", "file": "chlorextol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorextol", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorextol | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorextol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloric Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Chloric Acid", "epdm": "1", "file": "chloric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chloric-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Chloric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorinated Solvents, Dry\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorinated Solvents, Dry | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorinated Solvents, Dry", "epdm": "4", "file": "chlorinated-solvents-dry.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorinated-solvents-dry", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorinated Solvents, Dry | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorinated Solvents, Dry \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorinated Solvents, Wet\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorinated Solvents, Wet | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorinated Solvents, Wet", "epdm": "4", "file": "chlorinated-solvents-wet.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorinated-solvents-wet", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorinated Solvents, Wet | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorinated Solvents, Wet \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorine Dioxide, 8% Cl as NaClO2 in solution\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorine Dioxide, 8% Cl as NaClO2 in solution | 4 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorine Dioxide, 8% Cl as NaClO2 in solution", "epdm": "4", "file": "chlorine-dioxide-8-cl-as-naclo2-in-solution.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorine-dioxide-8-cl-as-naclo2-in-solution", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chlorine Dioxide, 8% Cl as NaClO2 in solution | 4 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorine Dioxide, 8% Cl as NaClO2 in solution \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorine Dioxide\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorine Dioxide | 4 | 3 | 4 | 4 | X | 3 | 4 | 3 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Chlorine Dioxide", "epdm": "3", "file": "chlorine-dioxide.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "chlorine-dioxide", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chlorine Dioxide | 4 | 3 | 4 | 4 | X | 3 | 4 | 3 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorine Dioxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorine (Dry)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorine (Dry) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorine (Dry)", "epdm": "4", "file": "chlorine-dry.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorine-dry", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chlorine (Dry) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorine (Dry) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorine (Plasma)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorine (Plasma) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Chlorine (Plasma)", "epdm": "X", "file": "chlorine-plasma.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chlorine-plasma", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chlorine (Plasma) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorine (Plasma) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorine Trifluoride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorine Trifluoride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorine Trifluoride", "epdm": "4", "file": "chlorine-trifluoride.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorine-trifluoride", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorine Trifluoride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorine Trifluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorine Water\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorine Water | 3 | 2 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chlorine Water", "epdm": "2", "file": "chlorine-water.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chlorine-water", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chlorine Water | 3 | 2 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorine Water \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorine (Wet)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorine (Wet) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Chlorine (Wet)", "epdm": "X", "file": "chlorine-wet.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chlorine-wet", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chlorine (Wet) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorine (Wet) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloro 1-Nitro Ethane (1-Chloro 1-Nitro Ethane)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloro 1-Nitro Ethane (1-Chloro 1-Nitro Ethane) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chloro 1-Nitro Ethane (1-Chloro 1-Nitro Ethane)", "epdm": "4", "file": "chloro-1-nitro-ethane-1-chloro-1-nitro-ethane.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chloro-1-nitro-ethane-1-chloro-1-nitro-ethane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chloro 1-Nitro Ethane (1-Chloro 1-Nitro Ethane) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloro 1-Nitro Ethane (1-Chloro 1-Nitro Ethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloro Oxyfluorides\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloro Oxyfluorides | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Chloro Oxyfluorides", "epdm": "X", "file": "chloro-oxyfluorides.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chloro-oxyfluorides", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chloro Oxyfluorides | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloro Oxyfluorides \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloro Xylenols\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloro Xylenols | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chloro Xylenols", "epdm": "4", "file": "chloro-xylenols.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chloro-xylenols", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chloro Xylenols | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloro Xylenols \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroacetaldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroacetaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Chloroacetaldehyde", "epdm": "1", "file": "chloroacetaldehyde.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chloroacetaldehyde", "kalrez": "2", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Chloroacetaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroacetaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroacetic Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroacetic Acid | 4 | 2 | 4 | 4 | X | 2 | 4 | 1 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Chloroacetic Acid", "epdm": "2", "file": "chloroacetic-acid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chloroacetic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chloroacetic Acid | 4 | 2 | 4 | 4 | X | 2 | 4 | 1 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroacetic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroacetone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroacetone | 4 | 1 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Chloroacetone", "epdm": "1", "file": "chloroacetone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chloroacetone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chloroacetone | 4 | 1 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroacetone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroacetyl Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroacetyl Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chloroacetyl Chloride", "epdm": "X", "file": "chloroacetyl-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chloroacetyl-chloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chloroacetyl Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroacetyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroamino Benzoic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroamino Benzoic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Chloroamino Benzoic Acid", "epdm": "1", "file": "chloroamino-benzoic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chloroamino-benzoic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Chloroamino Benzoic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroamino Benzoic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroaniline\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Chloroaniline", "epdm": "1", "file": "chloroaniline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chloroaniline", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Chloroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroaniline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorobenzaldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorobenzaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Chlorobenzaldehyde", "epdm": "1", "file": "chlorobenzaldehyde.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chlorobenzaldehyde", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Chlorobenzaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorobenzaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorobenzene Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorobenzene Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorobenzene Chloride", "epdm": "4", "file": "chlorobenzene-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorobenzene-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chlorobenzene Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorobenzene Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorobenzene (Mono)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorobenzene (Mono) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorobenzene (Mono)", "epdm": "4", "file": "chlorobenzene-mono.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorobenzene-mono", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorobenzene (Mono) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorobenzene (Mono) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorobenzene Trifluoride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorobenzene Trifluoride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorobenzene Trifluoride", "epdm": "4", "file": "chlorobenzene-trifluoride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorobenzene-trifluoride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chlorobenzene Trifluoride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorobenzene Trifluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorobenzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorobenzene", "epdm": "4", "file": "chlorobenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorobenzochloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorobenzochloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorobenzochloride", "epdm": "4", "file": "chlorobenzochloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorobenzochloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chlorobenzochloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorobenzochloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorobenzotrifluoride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorobenzotrifluoride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorobenzotrifluoride", "epdm": "4", "file": "chlorobenzotrifluoride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorobenzotrifluoride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chlorobenzotrifluoride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorobenzotrifluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorobromo Methane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorobromo Methane | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Chlorobromo Methane", "epdm": "2", "file": "chlorobromo-methane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorobromo-methane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorobromo Methane | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorobromo Methane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorobromopropane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorobromopropane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorobromopropane", "epdm": "4", "file": "chlorobromopropane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorobromopropane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chlorobromopropane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorobromopropane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorobutadiene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorobutadiene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorobutadiene", "epdm": "4", "file": "chlorobutadiene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorobutadiene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorobutadiene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorobutadiene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorobutane (Butyl Chloride)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorobutane (Butyl Chloride) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorobutane (Butyl Chloride)", "epdm": "4", "file": "chlorobutane-butyl-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "chlorobutane-butyl-chloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Chlorobutane (Butyl Chloride) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorobutane (Butyl Chloride) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorododecane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorododecane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorododecane", "epdm": "4", "file": "chlorododecane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorododecane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorododecane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorododecane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroethane Sulfonic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroethane Sulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Chloroethane Sulfonic Acid", "epdm": "1", "file": "chloroethane-sulfonic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chloroethane-sulfonic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Chloroethane Sulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroethane Sulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroethane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroethane | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chloroethane", "epdm": "4", "file": "chloroethane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "chloroethane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Chloroethane | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroethylbenzene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroethylbenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chloroethylbenzene", "epdm": "4", "file": "chloroethylbenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chloroethylbenzene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chloroethylbenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroethylbenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroform\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroform | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chloroform", "epdm": "4", "file": "chloroform.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chloroform", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chloroform | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroform \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorohydrin\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorohydrin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Chlorohydrin", "epdm": "1", "file": "chlorohydrin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chlorohydrin", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Chlorohydrin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorohydrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloronaphthalene or o-Chloronaphthalene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloronaphthalene or o-Chloronaphthalene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chloronaphthalene or o-Chloronaphthalene", "epdm": "4", "file": "chloronaphthalene-or-o-chloronaphthalene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chloronaphthalene-or-o-chloronaphthalene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chloronaphthalene or o-Chloronaphthalene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloronaphthalene or o-Chloronaphthalene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloronitrobenzene\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloronitrobenzene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Chloronitrobenzene", "epdm": "1", "file": "chloronitrobenzene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chloronitrobenzene", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Chloronitrobenzene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloronitrobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorophenol or o-Chlorophenol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorophenol or o-Chlorophenol | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorophenol or o-Chlorophenol", "epdm": "4", "file": "chlorophenol-or-o-chlorophenol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorophenol-or-o-chlorophenol", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorophenol or o-Chlorophenol | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorophenol or o-Chlorophenol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloropicrin\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloropicrin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chloropicrin", "epdm": "4", "file": "chloropicrin.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chloropicrin", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chloropicrin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloropicrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroprene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroprene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chloroprene", "epdm": "4", "file": "chloroprene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chloroprene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chloroprene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroprene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorosilanes\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorosilanes | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chlorosilanes", "epdm": "X", "file": "chlorosilanes.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chlorosilanes", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chlorosilanes | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorosilanes \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorosulfonic Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorosulfonic Acid | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorosulfonic Acid", "epdm": "4", "file": "chlorosulfonic-acid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorosulfonic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorosulfonic Acid | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorosulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorotoluene Sulfonic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorotoluene Sulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Chlorotoluene Sulfonic Acid", "epdm": "1", "file": "chlorotoluene-sulfonic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chlorotoluene-sulfonic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Chlorotoluene Sulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorotoluene Sulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorotoluene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorotoluene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorotoluene", "epdm": "4", "file": "chlorotoluene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorotoluene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Chlorotoluene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorotoluene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorotoluidine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorotoluidine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chlorotoluidine", "epdm": "4", "file": "chlorotoluidine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chlorotoluidine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chlorotoluidine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorotoluidine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorotrifluoroethylene (CTFE)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorotrifluoroethylene (CTFE) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Chlorotrifluoroethylene (CTFE)", "epdm": "X", "file": "chlorotrifluoroethylene-ctfe.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chlorotrifluoroethylene-ctfe", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chlorotrifluoroethylene (CTFE) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorotrifluoroethylene (CTFE) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chlorox\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chlorox | 2 | 2 | 2 | 4 | X | 2 | 4 | 2 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Chlorox", "epdm": "2", "file": "chlorox.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "chlorox", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chlorox | 2 | 2 | 2 | 4 | X | 2 | 4 | 2 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chlorox \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chloroxylols\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chloroxylols | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chloroxylols", "epdm": "X", "file": "chloroxylols.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chloroxylols", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chloroxylols | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chloroxylols \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cholesterol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cholesterol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cholesterol", "epdm": "4", "file": "cholesterol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cholesterol", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Cholesterol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cholesterol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chrome Alum\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chrome Alum | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Chrome Alum", "epdm": "1", "file": "chrome-alum.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "chrome-alum", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Chrome Alum | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chrome Alum \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chrome Plating Solutions\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chrome Plating Solutions | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 1 | 4 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Chrome Plating Solutions", "epdm": "2", "file": "chrome-plating-solutions.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chrome-plating-solutions", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Chrome Plating Solutions | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 1 | 4 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chrome Plating Solutions \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chromic Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chromic Acid | 4 | 2 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Chromic Acid", "epdm": "2", "file": "chromic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "chromic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Chromic Acid | 4 | 2 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chromic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chromic Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chromic Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chromic Chloride", "epdm": "X", "file": "chromic-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chromic-chloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chromic Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chromic Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chromic Fluorides\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chromic Fluorides | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chromic Fluorides", "epdm": "X", "file": "chromic-fluorides.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chromic-fluorides", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chromic Fluorides | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chromic Fluorides \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chromic Hydroxide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chromic Hydroxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chromic Hydroxide", "epdm": "X", "file": "chromic-hydroxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chromic-hydroxide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chromic Hydroxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chromic Hydroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chromic Nitrates\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chromic Nitrates | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chromic Nitrates", "epdm": "X", "file": "chromic-nitrates.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chromic-nitrates", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chromic Nitrates | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chromic Nitrates \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chromic Oxide\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chromic Oxide | 4 | 2 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chromic Oxide", "epdm": "2", "file": "chromic-oxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chromic-oxide", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chromic Oxide | 4 | 2 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chromic Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chromic Phosphate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chromic Phosphate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chromic Phosphate", "epdm": "X", "file": "chromic-phosphate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chromic-phosphate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chromic Phosphate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chromic Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chromic Sulfate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chromic Sulfate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chromic Sulfate", "epdm": "X", "file": "chromic-sulfate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chromic-sulfate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chromic Sulfate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chromic Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chromium Potassium Sulfate (Alum)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chromium Potassium Sulfate (Alum) | 2 | 2 | X | X | X | X | X | X | 1 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chromium Potassium Sulfate (Alum)", "epdm": "2", "file": "chromium-potassium-sulfate-alum.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chromium-potassium-sulfate-alum", "kalrez": "1", "neoprene": "X", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chromium Potassium Sulfate (Alum) | 2 | 2 | X | X | X | X | X | X | 1 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chromium Potassium Sulfate (Alum) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Chromyl Chlorides\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Chromyl Chlorides | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Chromyl Chlorides", "epdm": "X", "file": "chromyl-chlorides.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "chromyl-chlorides", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Chromyl Chlorides | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Chromyl Chlorides \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cinnamic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cinnamic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cinnamic Acid", "epdm": "4", "file": "cinnamic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cinnamic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Cinnamic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cinnamic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cinnamic Alcohol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cinnamic Alcohol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cinnamic Alcohol", "epdm": "4", "file": "cinnamic-alcohol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cinnamic-alcohol", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Cinnamic Alcohol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cinnamic Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cinnamic Aldehyde\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cinnamic Aldehyde | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cinnamic Aldehyde", "epdm": "4", "file": "cinnamic-aldehyde.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cinnamic-aldehyde", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Cinnamic Aldehyde | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cinnamic Aldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Circo Light Process Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Circo Light Process Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Circo Light Process Oil", "epdm": "4", "file": "circo-light-process-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "circo-light-process-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Circo Light Process Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Circo Light Process Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Citric Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Citric Acid | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Citric Acid", "epdm": "1", "file": "citric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "citric-acid", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Citric Acid | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Citric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** City Service #65 #120 #250\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> City Service #65 #120 #250 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "City Service #65 #120 #250", "epdm": "4", "file": "city-service-65-120-250.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "city-service-65-120-250", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "City Service #65 #120 #250 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "City Service #65 #120 #250 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** City Service Koolmoter-AP Gear Oil 140-EP Lube\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> City Service Koolmoter-AP Gear Oil 140-EP Lube | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "City Service Koolmoter-AP Gear Oil 140-EP Lube", "epdm": "4", "file": "city-service-koolmoter-ap-gear-oil-140-ep-lube.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "city-service-koolmoter-ap-gear-oil-140-ep-lube", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "City Service Koolmoter-AP Gear Oil 140-EP Lube | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "City Service Koolmoter-AP Gear Oil 140-EP Lube \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** City Service Pacemaker #2\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> City Service Pacemaker #2 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "City Service Pacemaker #2", "epdm": "4", "file": "city-service-pacemaker-2.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "city-service-pacemaker-2", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "City Service Pacemaker #2 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "City Service Pacemaker #2 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Clorox\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Clorox | 2 | 2 | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Clorox", "epdm": "2", "file": "clorox.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "clorox", "kalrez": "1", "neoprene": "X", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Clorox | 2 | 2 | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Clorox \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Coal Tar\n\n**Nitrile (NBR):** 1\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Coal Tar | 1 | X | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Coal Tar", "epdm": "X", "file": "coal-tar.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "coal-tar", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Coal Tar | 1 | X | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Coal Tar \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cobalt Chloride, 2N\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cobalt Chloride, 2N | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cobalt Chloride, 2N", "epdm": "1", "file": "cobalt-chloride-2n.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cobalt-chloride-2n", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Cobalt Chloride, 2N | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cobalt Chloride, 2N \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cobalt Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cobalt Chloride | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cobalt Chloride", "epdm": "1", "file": "cobalt-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cobalt-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cobalt Chloride | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cobalt Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cobaltous Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cobaltous Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cobaltous Acetate", "epdm": "1", "file": "cobaltous-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cobaltous-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cobaltous Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cobaltous Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cobaltous Bromide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cobaltous Bromide | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cobaltous Bromide", "epdm": "1", "file": "cobaltous-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cobaltous-bromide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Cobaltous Bromide | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cobaltous Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cobaltous Linoleate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cobaltous Linoleate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cobaltous Linoleate", "epdm": "X", "file": "cobaltous-linoleate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cobaltous-linoleate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cobaltous Linoleate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cobaltous Linoleate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cobaltous Naphthenate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cobaltous Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cobaltous Naphthenate", "epdm": "X", "file": "cobaltous-naphthenate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cobaltous-naphthenate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cobaltous Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cobaltous Naphthenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cobaltous Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cobaltous Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cobaltous Sulfate", "epdm": "1", "file": "cobaltous-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "cobaltous-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Cobaltous Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cobaltous Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Coconut Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Coconut Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 3 | 1 | 3 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Coconut Oil", "epdm": "3", "file": "coconut-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "coconut-oil", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Coconut Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 3 | 1 | 3 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Coconut Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cod Liver Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cod Liver Oil | 1 | 1 | 2 | 4 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Cod Liver Oil", "epdm": "1", "file": "cod-liver-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "cod-liver-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Cod Liver Oil | 1 | 1 | 2 | 4 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cod Liver Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Codeine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Codeine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Codeine", "epdm": "4", "file": "codeine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "codeine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Codeine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Codeine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Coffee\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Coffee | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Coffee", "epdm": "1", "file": "coffee.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "coffee", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Coffee | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Coffee \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Coke Oven Gas\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Coke Oven Gas | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Coke Oven Gas", "epdm": "4", "file": "coke-oven-gas.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "coke-oven-gas", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Coke Oven Gas | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Coke Oven Gas \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Coliche Liquors\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Coliche Liquors | 2 | 2 | 1 | 2 | X | 2 | X | X | X | X | X | 2 | X |\n\nSource: \n", "butyl": "2", "chemical": "Coliche Liquors", "epdm": "2", "file": "coliche-liquors.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "coliche-liquors", "kalrez": "X", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Coliche Liquors | 2 | 2 | 1 | 2 | X | 2 | X | X | X | X | X | 2 | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Coliche Liquors \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Convelex 10\n\n**Nitrile (NBR):** 4\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Convelex 10 | 4 | X | 4 | 4 | 4 | 4 | X | 4 | X | 2 | X | X | X |\n\nSource: \n", "butyl": "4", "chemical": "Convelex 10", "epdm": "X", "file": "convelex-10.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "convelex-10", "kalrez": "X", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Convelex 10 | 4 | X | 4 | 4 | 4 | 4 | X | 4 | X | 2 | X | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Convelex 10 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Coolanol 20 25R 35R 40& 45A (Monsanto)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Coolanol 20 25R 35R 40& 45A (Monsanto) | 1 | 3 | 2 | 4 | 4 | 4 | 4 | 2 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Coolanol 20 25R 35R 40& 45A (Monsanto)", "epdm": "3", "file": "coolanol-20-25r-35r-40-45a-monsanto.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "coolanol-20-25r-35r-40-45a-monsanto", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Coolanol 20 25R 35R 40& 45A (Monsanto) | 1 | 3 | 2 | 4 | 4 | 4 | 4 | 2 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Coolanol 20 25R 35R 40& 45A (Monsanto) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Acetate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Copper Acetate", "epdm": "1", "file": "copper-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "copper-acetate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Copper Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Ammonium Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Ammonium Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Copper Ammonium Acetate", "epdm": "1", "file": "copper-ammonium-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "copper-ammonium-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Copper Ammonium Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Ammonium Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Carbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Copper Carbonate", "epdm": "1", "file": "copper-carbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "copper-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Copper Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Chloride | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Copper Chloride", "epdm": "1", "file": "copper-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "copper-chloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Copper Chloride | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Cyanide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Copper Cyanide", "epdm": "1", "file": "copper-cyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "copper-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Copper Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Gluconate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Gluconate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Copper Gluconate", "epdm": "1", "file": "copper-gluconate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "copper-gluconate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Copper Gluconate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Gluconate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Naphthenate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Copper Naphthenate", "epdm": "X", "file": "copper-naphthenate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "copper-naphthenate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Copper Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Naphthenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Nitrate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Nitrate | 2 | 2 | X | X | X | X | X | X | 1 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Copper Nitrate", "epdm": "2", "file": "copper-nitrate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "copper-nitrate", "kalrez": "1", "neoprene": "X", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Copper Nitrate | 2 | 2 | X | X | X | X | X | X | 1 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Oxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Oxide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Copper Oxide", "epdm": "1", "file": "copper-oxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "copper-oxide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Copper Oxide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Salts\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Salts | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Copper Salts", "epdm": "1", "file": "copper-salts.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "copper-salts", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Copper Salts | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Salts \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Sulfate 10%\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Sulfate 10% | 1 | 1 | 1 | 2 | 1 | 2 | 4 | 1 | 1 | 2 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Copper Sulfate 10%", "epdm": "1", "file": "copper-sulfate-10.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "copper-sulfate-10", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Copper Sulfate 10% | 1 | 1 | 1 | 2 | 1 | 2 | 4 | 1 | 1 | 2 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Sulfate 10% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Sulfate 50%\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Sulfate 50% | 1 | 1 | 1 | 2 | 1 | 2 | 4 | 1 | 1 | 3 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Copper Sulfate 50%", "epdm": "1", "file": "copper-sulfate-50.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "copper-sulfate-50", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Copper Sulfate 50% | 1 | 1 | 1 | 2 | 1 | 2 | 4 | 1 | 1 | 3 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Sulfate 50% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Copper Sulfate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Copper Sulfate | 1 | 1 | 1 | 2 | 1 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Copper Sulfate", "epdm": "1", "file": "copper-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "copper-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Copper Sulfate | 1 | 1 | 1 | 2 | 1 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Copper Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Corn Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Corn Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Corn Oil", "epdm": "3", "file": "corn-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "corn-oil", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Corn Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Corn Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cottonseed Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cottonseed Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 2 | 1 | 1 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Cottonseed Oil", "epdm": "3", "file": "cottonseed-oil.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "cottonseed-oil", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Cottonseed Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 2 | 1 | 1 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cottonseed Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Creosote, Coal Tar\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Creosote, Coal Tar | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 3 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Creosote, Coal Tar", "epdm": "4", "file": "creosote-coal-tar.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "creosote-coal-tar", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Creosote, Coal Tar | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 3 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Creosote, Coal Tar \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Creosote, Wood\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Creosote, Wood | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 3 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Creosote, Wood", "epdm": "4", "file": "creosote-wood.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "creosote-wood", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Creosote, Wood | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 3 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Creosote, Wood \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cresol (Methyl Phenol)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cresol (Methyl Phenol) | X | X | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cresol (Methyl Phenol)", "epdm": "X", "file": "cresol-methyl-phenol.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cresol-methyl-phenol", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cresol (Methyl Phenol) | X | X | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cresol (Methyl Phenol) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cresols\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cresols | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cresols", "epdm": "4", "file": "cresols.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cresols", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cresols | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cresols \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cresylic Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cresylic Acid | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | X | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cresylic Acid", "epdm": "4", "file": "cresylic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cresylic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cresylic Acid | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cresylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Crotonaldehyde\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Crotonaldehyde | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Crotonaldehyde", "epdm": "4", "file": "crotonaldehyde.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "crotonaldehyde", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Crotonaldehyde | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Crotonaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Crotonic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Crotonic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Crotonic Acid", "epdm": "4", "file": "crotonic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "crotonic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Crotonic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Crotonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Crude Oil\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Crude Oil | 2 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Crude Oil", "epdm": "4", "file": "crude-oil.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "crude-oil", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "1", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Crude Oil | 2 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Crude Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cumaldehyde\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cumaldehyde | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cumaldehyde", "epdm": "4", "file": "cumaldehyde.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cumaldehyde", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Cumaldehyde | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cumaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cumene Hydroperoxide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cumene Hydroperoxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cumene Hydroperoxide", "epdm": "X", "file": "cumene-hydroperoxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cumene-hydroperoxide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cumene Hydroperoxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cumene Hydroperoxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cumene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cumene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cumene", "epdm": "4", "file": "cumene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cumene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cumene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cumene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cupric Sulfate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cupric Sulfate | 2 | 2 | X | X | X | X | X | X | 1 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cupric Sulfate", "epdm": "2", "file": "cupric-sulfate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cupric-sulfate", "kalrez": "1", "neoprene": "X", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cupric Sulfate | 2 | 2 | X | X | X | X | X | X | 1 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cupric Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cutting Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cutting Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cutting Oil", "epdm": "4", "file": "cutting-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "cutting-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cutting Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cutting Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyanamide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyanamide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cyanamide", "epdm": "X", "file": "cyanamide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cyanamide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cyanamide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyanamide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyanides\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyanides | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cyanides", "epdm": "X", "file": "cyanides.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cyanides", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cyanides | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyanides \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyanogen Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyanogen Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cyanogen Chloride", "epdm": "X", "file": "cyanogen-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cyanogen-chloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cyanogen Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyanogen Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyanogen Gas\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyanogen Gas | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cyanogen Gas", "epdm": "X", "file": "cyanogen-gas.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cyanogen-gas", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cyanogen Gas | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyanogen Gas \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyanohydrin\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyanohydrin | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cyanohydrin", "epdm": "X", "file": "cyanohydrin.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cyanohydrin", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cyanohydrin | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyanohydrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyanuric Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyanuric Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cyanuric Chloride", "epdm": "X", "file": "cyanuric-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cyanuric-chloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cyanuric Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyanuric Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyclohexane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyclohexane | 1 | 4 | 3 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cyclohexane", "epdm": "4", "file": "cyclohexane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cyclohexane", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cyclohexane | 1 | 4 | 3 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyclohexane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyclohexanol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyclohexanol | 1 | 4 | 2 | 4 | 4 | 4 | X | 2 | 1 | X | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cyclohexanol", "epdm": "4", "file": "cyclohexanol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "cyclohexanol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cyclohexanol | 1 | 4 | 2 | 4 | 4 | 4 | X | 2 | 1 | X | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyclohexanol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyclohexanone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyclohexanone | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Cyclohexanone", "epdm": "2", "file": "cyclohexanone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cyclohexanone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cyclohexanone | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyclohexanone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyclohexene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyclohexene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cyclohexene", "epdm": "4", "file": "cyclohexene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cyclohexene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Cyclohexene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyclohexene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyclohexylamine Carbonate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyclohexylamine Carbonate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Cyclohexylamine Carbonate", "epdm": "X", "file": "cyclohexylamine-carbonate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "cyclohexylamine-carbonate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Cyclohexylamine Carbonate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyclohexylamine Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyclohexylamine Laurate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyclohexylamine Laurate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cyclohexylamine Laurate", "epdm": "4", "file": "cyclohexylamine-laurate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "cyclohexylamine-laurate", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Cyclohexylamine Laurate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyclohexylamine Laurate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyclohexylamine\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyclohexylamine | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cyclohexylamine", "epdm": "4", "file": "cyclohexylamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "cyclohexylamine", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Cyclohexylamine | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyclohexylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyclopentadiene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyclopentadiene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cyclopentadiene", "epdm": "4", "file": "cyclopentadiene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cyclopentadiene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Cyclopentadiene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyclopentadiene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyclopentane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyclopentane | 1 | 4 | 3 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cyclopentane", "epdm": "4", "file": "cyclopentane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cyclopentane", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cyclopentane | 1 | 4 | 3 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyclopentane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cyclopolyolefins\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cyclopolyolefins | 1 | 4 | 3 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cyclopolyolefins", "epdm": "4", "file": "cyclopolyolefins.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cyclopolyolefins", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cyclopolyolefins | 1 | 4 | 3 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cyclopolyolefins \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Cymene or p-Cymene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Cymene or p-Cymene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Cymene or p-Cymene", "epdm": "4", "file": "cymene-or-p-cymene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "cymene-or-p-cymene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Cymene or p-Cymene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Cymene or p-Cymene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** DDT (Dichlorodiphenyltrichloroethane)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> DDT (Dichlorodiphenyltrichloroethane) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "DDT (Dichlorodiphenyltrichloroethane)", "epdm": "4", "file": "ddt-dichlorodiphenyltrichloroethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ddt-dichlorodiphenyltrichloroethane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "DDT (Dichlorodiphenyltrichloroethane) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "DDT (Dichlorodiphenyltrichloroethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Decalin\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Decalin | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Decalin", "epdm": "4", "file": "decalin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "decalin", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Decalin | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Decalin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Decane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Decane | 1 | 4 | 3 | 4 | 2 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Decane", "epdm": "4", "file": "decane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "decane", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Decane | 1 | 4 | 3 | 4 | 2 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Decane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Delco Brake Fluid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Delco Brake Fluid | 3 | 1 | 2 | 1 | 3 | 2 | X | 2 | 4 | X | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Delco Brake Fluid", "epdm": "1", "file": "delco-brake-fluid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "delco-brake-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Delco Brake Fluid | 3 | 1 | 2 | 1 | 3 | 2 | X | 2 | 4 | X | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Delco Brake Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Denatured Alcohol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Denatured Alcohol | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Denatured Alcohol", "epdm": "1", "file": "denatured-alcohol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "denatured-alcohol", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Denatured Alcohol | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Denatured Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Detergent, Water Solution\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Detergent, Water Solution | 1 | 1 | 2 | 2 | 1 | 1 | 4 | 2 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Detergent, Water Solution", "epdm": "1", "file": "detergent-water-solution.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "detergent-water-solution", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Detergent, Water Solution | 1 | 1 | 2 | 2 | 1 | 1 | 4 | 2 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Detergent, Water Solution \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Developing Fluids (Photo)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Developing Fluids (Photo) | 1 | 2 | 1 | 2 | 1 | 2 | X | 1 | 1 | X | 1 | 1 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Developing Fluids (Photo)", "epdm": "2", "file": "developing-fluids-photo.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "developing-fluids-photo", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Developing Fluids (Photo) | 1 | 2 | 1 | 2 | 1 | 2 | X | 1 | 1 | X | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Developing Fluids (Photo) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dexron\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dexron | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dexron", "epdm": "4", "file": "dexron.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dexron", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dexron | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dexron \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dextrin\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dextrin | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dextrin", "epdm": "4", "file": "dextrin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "dextrin", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Dextrin | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dextrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dextro Lactic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dextro Lactic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dextro Lactic Acid", "epdm": "1", "file": "dextro-lactic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dextro-lactic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dextro Lactic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dextro Lactic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dextron\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dextron | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Dextron", "epdm": "4", "file": "dextron.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "dextron", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Dextron | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dextron \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dextrose\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dextrose | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dextrose", "epdm": "1", "file": "dextrose.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dextrose", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dextrose | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dextrose \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Di-ester Lubricant MIL-L-7808\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Di-ester Lubricant MIL-L-7808 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Di-ester Lubricant MIL-L-7808", "epdm": "4", "file": "di-ester-lubricant-mil-l-7808.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "di-ester-lubricant-mil-l-7808", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Di-ester Lubricant MIL-L-7808 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Di-ester Lubricant MIL-L-7808 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Di-ester Synthetic Lubricants\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Di-ester Synthetic Lubricants | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Di-ester Synthetic Lubricants", "epdm": "4", "file": "di-ester-synthetic-lubricants.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "di-ester-synthetic-lubricants", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Di-ester Synthetic Lubricants | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Di-ester Synthetic Lubricants \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Di-Tert-Butyl Peroxide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Di-Tert-Butyl Peroxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Di-Tert-Butyl Peroxide", "epdm": "X", "file": "di-tert-butyl-peroxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "di-tert-butyl-peroxide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Di-Tert-Butyl Peroxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Di-Tert-Butyl Peroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** DI Water\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> DI Water | 2 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 2 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "DI Water", "epdm": "1", "file": "di-water.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "di-water", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "DI Water | 2 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 2 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "DI Water \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diacetone Alcohol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diacetone Alcohol | 4 | 1 | 2 | 4 | 4 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Diacetone Alcohol", "epdm": "1", "file": "diacetone-alcohol.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "diacetone-alcohol", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Diacetone Alcohol | 4 | 1 | 2 | 4 | 4 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diacetone Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diacetone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diacetone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Diacetone", "epdm": "1", "file": "diacetone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diacetone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Diacetone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diacetone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dialkyl Sulfates\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dialkyl Sulfates | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dialkyl Sulfates", "epdm": "1", "file": "dialkyl-sulfates.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dialkyl-sulfates", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dialkyl Sulfates | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dialkyl Sulfates \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diallyl Ether\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diallyl Ether | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Diallyl Ether", "epdm": "X", "file": "diallyl-ether.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "diallyl-ether", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Diallyl Ether | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diallyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diallyl Phthalate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diallyl Phthalate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Diallyl Phthalate", "epdm": "X", "file": "diallyl-phthalate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "diallyl-phthalate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Diallyl Phthalate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diallyl Phthalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diamylamine\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diamylamine | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diamylamine", "epdm": "4", "file": "diamylamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "diamylamine", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Diamylamine | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diamylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diazinon\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diazinon | 3 | 4 | 3 | 4 | 4 | 4 | X | 3 | 2 | X | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diazinon", "epdm": "4", "file": "diazinon.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "diazinon", "kalrez": "1", "neoprene": "3", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Diazinon | 3 | 4 | 3 | 4 | 4 | 4 | X | 3 | 2 | X | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diazinon \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibenzyl Ether\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibenzyl Ether | 4 | 2 | 4 | 4 | X | 2 | X | 4 | 4 | 2 | X | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Dibenzyl Ether", "epdm": "2", "file": "dibenzyl-ether.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibenzyl-ether", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dibenzyl Ether | 4 | 2 | 4 | 4 | X | 2 | X | 4 | 4 | 2 | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibenzyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibenzyl Sebacate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibenzyl Sebacate | 4 | 2 | 4 | 4 | 3 | 2 | 4 | 4 | 2 | 2 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Dibenzyl Sebacate", "epdm": "2", "file": "dibenzyl-sebacate.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibenzyl-sebacate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Dibenzyl Sebacate | 4 | 2 | 4 | 4 | 3 | 2 | 4 | 4 | 2 | 2 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibenzyl Sebacate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibenzyl (sym-Diphenylethane)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibenzyl (sym-Diphenylethane) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dibenzyl (sym-Diphenylethane)", "epdm": "4", "file": "dibenzyl-sym-diphenylethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibenzyl-sym-diphenylethane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dibenzyl (sym-Diphenylethane) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibenzyl (sym-Diphenylethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diborane\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diborane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Diborane", "epdm": "X", "file": "diborane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "diborane", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Diborane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diborane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibromoethane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibromoethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dibromoethane", "epdm": "4", "file": "dibromoethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibromoethane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dibromoethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibromoethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibromoethyl Benzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibromoethyl Benzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dibromoethyl Benzene", "epdm": "4", "file": "dibromoethyl-benzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibromoethyl-benzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dibromoethyl Benzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibromoethyl Benzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibutyl Cellosolve Adipate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibutyl Cellosolve Adipate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dibutyl Cellosolve Adipate", "epdm": "1", "file": "dibutyl-cellosolve-adipate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dibutyl-cellosolve-adipate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dibutyl Cellosolve Adipate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibutyl Cellosolve Adipate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibutyl Ether\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibutyl Ether | 4 | 3 | 4 | 4 | 4 | 3 | 3 | 4 | 3 | 2 | 3 | 3 | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Dibutyl Ether", "epdm": "3", "file": "dibutyl-ether.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibutyl-ether", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "3", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dibutyl Ether | 4 | 3 | 4 | 4 | 4 | 3 | 3 | 4 | 3 | 2 | 3 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibutyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibutyl Methylenedithio Glycolate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibutyl Methylenedithio Glycolate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dibutyl Methylenedithio Glycolate", "epdm": "4", "file": "dibutyl-methylenedithio-glycolate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibutyl-methylenedithio-glycolate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dibutyl Methylenedithio Glycolate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibutyl Methylenedithio Glycolate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibutyl Phthalate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibutyl Phthalate | 4 | 2 | 4 | 4 | 2 | 3 | 4 | 4 | 3 | 3 | 3 | 3 | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Dibutyl Phthalate", "epdm": "2", "file": "dibutyl-phthalate.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibutyl-phthalate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Dibutyl Phthalate | 4 | 2 | 4 | 4 | 2 | 3 | 4 | 4 | 3 | 3 | 3 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibutyl Phthalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibutyl Sebacate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibutyl Sebacate | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Dibutyl Sebacate", "epdm": "2", "file": "dibutyl-sebacate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibutyl-sebacate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Dibutyl Sebacate | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibutyl Sebacate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibutyl Thioglycolate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibutyl Thioglycolate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dibutyl Thioglycolate", "epdm": "4", "file": "dibutyl-thioglycolate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibutyl-thioglycolate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dibutyl Thioglycolate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibutyl Thioglycolate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibutyl Thiourea\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibutyl Thiourea | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dibutyl Thiourea", "epdm": "4", "file": "dibutyl-thiourea.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibutyl-thiourea", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dibutyl Thiourea | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibutyl Thiourea \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dibutylamine\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dibutylamine | 4 | 1 | 3 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dibutylamine", "epdm": "1", "file": "dibutylamine.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dibutylamine", "kalrez": "1", "neoprene": "3", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Dibutylamine | 4 | 1 | 3 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dibutylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichloroacetic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichloroacetic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichloroacetic Acid", "epdm": "4", "file": "dichloroacetic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichloroacetic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichloroacetic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichloroacetic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichloroaniline\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichloroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dichloroaniline", "epdm": "1", "file": "dichloroaniline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dichloroaniline", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dichloroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichloroaniline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichlorobenzene or o-Dichlorobenzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichlorobenzene or o-Dichlorobenzene | 4 | 4 | 4 | 4 | X | 4 | 4 | 2 | 1 | 4 | 4 | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichlorobenzene or o-Dichlorobenzene", "epdm": "4", "file": "dichlorobenzene-or-o-dichlorobenzene.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "dichlorobenzene-or-o-dichlorobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichlorobenzene or o-Dichlorobenzene | 4 | 4 | 4 | 4 | X | 4 | 4 | 2 | 1 | 4 | 4 | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichlorobenzene or o-Dichlorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichlorobenzene or p-Dichlorobenzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichlorobenzene or p-Dichlorobenzene | 4 | 4 | 4 | 4 | X | 4 | 4 | 2 | 1 | 4 | 4 | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichlorobenzene or p-Dichlorobenzene", "epdm": "4", "file": "dichlorobenzene-or-p-dichlorobenzene.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "dichlorobenzene-or-p-dichlorobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichlorobenzene or p-Dichlorobenzene | 4 | 4 | 4 | 4 | X | 4 | 4 | 2 | 1 | 4 | 4 | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichlorobenzene or p-Dichlorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichlorobutane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichlorobutane | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichlorobutane", "epdm": "4", "file": "dichlorobutane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichlorobutane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dichlorobutane | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichlorobutane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichlorobutene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichlorobutene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichlorobutene", "epdm": "4", "file": "dichlorobutene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichlorobutene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichlorobutene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichlorobutene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichlorodiphenyl-Dichloroethane (DDD)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichlorodiphenyl-Dichloroethane (DDD) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichlorodiphenyl-Dichloroethane (DDD)", "epdm": "4", "file": "dichlorodiphenyl-dichloroethane-ddd.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichlorodiphenyl-dichloroethane-ddd", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichlorodiphenyl-Dichloroethane (DDD) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichlorodiphenyl-Dichloroethane (DDD) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichloroethane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichloroethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichloroethane", "epdm": "4", "file": "dichloroethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichloroethane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichloroethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichloroethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichloroethylene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichloroethylene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichloroethylene", "epdm": "4", "file": "dichloroethylene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichloroethylene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichloroethylene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichloroethylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichlorohydrin\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichlorohydrin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dichlorohydrin", "epdm": "1", "file": "dichlorohydrin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dichlorohydrin", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dichlorohydrin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichlorohydrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichloroisopropyl Ether\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichloroisopropyl Ether | 4 | 3 | 4 | 4 | 4 | 4 | 3 | 4 | 3 | 2 | 3 | 3 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichloroisopropyl Ether", "epdm": "3", "file": "dichloroisopropyl-ether.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichloroisopropyl-ether", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "3", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dichloroisopropyl Ether | 4 | 3 | 4 | 4 | 4 | 4 | 3 | 4 | 3 | 2 | 3 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichloroisopropyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichloromethane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichloromethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichloromethane", "epdm": "4", "file": "dichloromethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichloromethane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichloromethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichloromethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichlorophenol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichlorophenol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichlorophenol", "epdm": "4", "file": "dichlorophenol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichlorophenol", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichlorophenol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichlorophenol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichlorophenoxyacetic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichlorophenoxyacetic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichlorophenoxyacetic Acid", "epdm": "4", "file": "dichlorophenoxyacetic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichlorophenoxyacetic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichlorophenoxyacetic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichlorophenoxyacetic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichloropropane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichloropropane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichloropropane", "epdm": "4", "file": "dichloropropane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichloropropane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichloropropane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichloropropane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichloropropene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichloropropene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dichloropropene", "epdm": "4", "file": "dichloropropene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dichloropropene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dichloropropene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichloropropene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dichlorosilane\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dichlorosilane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Dichlorosilane", "epdm": "X", "file": "dichlorosilane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "dichlorosilane", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Dichlorosilane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dichlorosilane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dicyclohexylamine\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dicyclohexylamine | 1 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dicyclohexylamine", "epdm": "4", "file": "dicyclohexylamine.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dicyclohexylamine", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Dicyclohexylamine | 1 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dicyclohexylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dicyclohexylammonium Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dicyclohexylammonium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dicyclohexylammonium Nitrate", "epdm": "1", "file": "dicyclohexylammonium-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dicyclohexylammonium-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dicyclohexylammonium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dicyclohexylammonium Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dieldrin\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dieldrin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dieldrin", "epdm": "4", "file": "dieldrin.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dieldrin", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dieldrin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dieldrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diesel Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diesel Oil | 1 | 4 | 3 | 4 | 4 | 4 | 1 | 3 | 1 | 3 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diesel Oil", "epdm": "4", "file": "diesel-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "diesel-oil", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Diesel Oil | 1 | 4 | 3 | 4 | 4 | 4 | 1 | 3 | 1 | 3 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diesel Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diethanolamine (DEA)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diethanolamine (DEA) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Diethanolamine (DEA)", "epdm": "1", "file": "diethanolamine-dea.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "diethanolamine-dea", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Diethanolamine (DEA) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diethanolamine (DEA) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diethyl Benzene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diethyl Benzene | X | X | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Diethyl Benzene", "epdm": "X", "file": "diethyl-benzene.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "diethyl-benzene", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Diethyl Benzene | X | X | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diethyl Benzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diethyl Carbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diethyl Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Diethyl Carbonate", "epdm": "1", "file": "diethyl-carbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "diethyl-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Diethyl Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diethyl Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diethyl Ether\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diethyl Ether | 4 | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 3 | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diethyl Ether", "epdm": "4", "file": "diethyl-ether.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diethyl-ether", "kalrez": "1", "neoprene": "3", "nitrile": "4", "polyacrylate": "3", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Diethyl Ether | 4 | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 3 | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diethyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diethyl Phthalate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diethyl Phthalate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diethyl Phthalate", "epdm": "4", "file": "diethyl-phthalate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diethyl-phthalate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Diethyl Phthalate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diethyl Phthalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diethyl Sebacate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diethyl Sebacate | 2 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Diethyl Sebacate", "epdm": "2", "file": "diethyl-sebacate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diethyl-sebacate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Diethyl Sebacate | 2 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diethyl Sebacate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diethyl Sulfate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diethyl Sulfate | 4 | 1 | 4 | X | 2 | X | X | X | 3 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Diethyl Sulfate", "epdm": "1", "file": "diethyl-sulfate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "diethyl-sulfate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "2", "source_quote": "Diethyl Sulfate | 4 | 1 | 4 | X | 2 | X | X | X | 3 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diethyl Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diethylamine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diethylamine | 2 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 4 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Diethylamine", "epdm": "1", "file": "diethylamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "diethylamine", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Diethylamine | 2 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 4 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diethylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diethylaniline\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diethylaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Diethylaniline", "epdm": "1", "file": "diethylaniline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "diethylaniline", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Diethylaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diethylaniline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diethylene Glycol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diethylene Glycol | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Diethylene Glycol", "epdm": "1", "file": "diethylene-glycol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "diethylene-glycol", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Diethylene Glycol | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diethylene Glycol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diethylenetriamine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diethylenetriamine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Diethylenetriamine", "epdm": "X", "file": "diethylenetriamine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "diethylenetriamine", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Diethylenetriamine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diethylenetriamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Difluorodibromomethane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Difluorodibromomethane | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | X | 4 | X | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Difluorodibromomethane", "epdm": "2", "file": "difluorodibromomethane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "difluorodibromomethane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Difluorodibromomethane | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | X | 4 | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Difluorodibromomethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Difluoroethane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Difluoroethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Difluoroethane", "epdm": "4", "file": "difluoroethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "difluoroethane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Difluoroethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Difluoroethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Difluoromonochloroethane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Difluoromonochloroethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Difluoromonochloroethane", "epdm": "4", "file": "difluoromonochloroethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "difluoromonochloroethane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Difluoromonochloroethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Difluoromonochloroethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diglycol Chloroformate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diglycol Chloroformate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Diglycol Chloroformate", "epdm": "1", "file": "diglycol-chloroformate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "diglycol-chloroformate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Diglycol Chloroformate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diglycol Chloroformate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diglycolic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diglycolic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Diglycolic Acid", "epdm": "1", "file": "diglycolic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "diglycolic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Diglycolic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diglycolic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dihydroxydiphenylsulfone\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dihydroxydiphenylsulfone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dihydroxydiphenylsulfone", "epdm": "1", "file": "dihydroxydiphenylsulfone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dihydroxydiphenylsulfone", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dihydroxydiphenylsulfone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dihydroxydiphenylsulfone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diisobutyl Ketone\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diisobutyl Ketone | X | 1 | X | X | X | 1 | X | X | X | X | X | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Diisobutyl Ketone", "epdm": "1", "file": "diisobutyl-ketone.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "diisobutyl-ketone", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Diisobutyl Ketone | X | 1 | X | X | X | 1 | X | X | X | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diisobutyl Ketone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diisobutylcarbinol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diisobutylcarbinol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diisobutylcarbinol", "epdm": "4", "file": "diisobutylcarbinol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "diisobutylcarbinol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Diisobutylcarbinol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diisobutylcarbinol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diisobutylene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diisobutylene | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diisobutylene", "epdm": "4", "file": "diisobutylene.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diisobutylene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Diisobutylene | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diisobutylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diisooctyl Sebacate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diisooctyl Sebacate | 3 | 3 | 4 | 4 | 3 | 4 | 4 | 4 | 2 | 4 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diisooctyl Sebacate", "epdm": "3", "file": "diisooctyl-sebacate.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diisooctyl-sebacate", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Diisooctyl Sebacate | 3 | 3 | 4 | 4 | 3 | 4 | 4 | 4 | 2 | 4 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diisooctyl Sebacate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diisopropyl Ether (DIPE)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diisopropyl Ether (DIPE) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Diisopropyl Ether (DIPE)", "epdm": "X", "file": "diisopropyl-ether-dipe.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "diisopropyl-ether-dipe", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Diisopropyl Ether (DIPE) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diisopropyl Ether (DIPE) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diisopropyl Ketone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diisopropyl Ketone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Diisopropyl Ketone", "epdm": "1", "file": "diisopropyl-ketone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diisopropyl-ketone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Diisopropyl Ketone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diisopropyl Ketone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diisopropylbenzene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diisopropylbenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diisopropylbenzene", "epdm": "4", "file": "diisopropylbenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diisopropylbenzene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Diisopropylbenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diisopropylbenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diisopropylidene Acetone\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diisopropylidene Acetone | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diisopropylidene Acetone", "epdm": "4", "file": "diisopropylidene-acetone.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diisopropylidene-acetone", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Diisopropylidene Acetone | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diisopropylidene Acetone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethyl Acetamide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethyl Acetamide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dimethyl Acetamide", "epdm": "1", "file": "dimethyl-acetamide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dimethyl-acetamide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dimethyl Acetamide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethyl Acetamide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethyl Ether\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 3\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethyl Ether | 1 | 2 | 3 | X | X | X | X | X | 2 | X | X | 4 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Dimethyl Ether", "epdm": "2", "file": "dimethyl-ether.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "dimethyl-ether", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Dimethyl Ether | 1 | 2 | 3 | X | X | X | X | X | 2 | X | X | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethyl Formaldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethyl Formaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dimethyl Formaldehyde", "epdm": "1", "file": "dimethyl-formaldehyde.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dimethyl-formaldehyde", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dimethyl Formaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethyl Formaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethyl Formamide (DMF)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethyl Formamide (DMF) | 2 | 1 | 3 | 4 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Dimethyl Formamide (DMF)", "epdm": "1", "file": "dimethyl-formamide-dmf.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dimethyl-formamide-dmf", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Dimethyl Formamide (DMF) | 2 | 1 | 3 | 4 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethyl Formamide (DMF) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethyl Phenyl Carbinol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethyl Phenyl Carbinol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dimethyl Phenyl Carbinol", "epdm": "4", "file": "dimethyl-phenyl-carbinol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dimethyl-phenyl-carbinol", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dimethyl Phenyl Carbinol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethyl Phenyl Carbinol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethyl Phenyl Methanol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethyl Phenyl Methanol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dimethyl Phenyl Methanol", "epdm": "4", "file": "dimethyl-phenyl-methanol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dimethyl-phenyl-methanol", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dimethyl Phenyl Methanol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethyl Phenyl Methanol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethyl Phthalate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethyl Phthalate | 4 | 2 | 4 | 4 | X | 2 | 4 | 4 | 2 | X | 2 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Dimethyl Phthalate", "epdm": "2", "file": "dimethyl-phthalate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dimethyl-phthalate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dimethyl Phthalate | 4 | 2 | 4 | 4 | X | 2 | 4 | 4 | 2 | X | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethyl Phthalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethyl Sulfoxide (DMSO)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethyl Sulfoxide (DMSO) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dimethyl Sulfoxide (DMSO)", "epdm": "1", "file": "dimethyl-sulfoxide-dmso.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dimethyl-sulfoxide-dmso", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dimethyl Sulfoxide (DMSO) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethyl Sulfoxide (DMSO) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethyl Terephthalate (DMT)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethyl Terephthalate (DMT) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dimethyl Terephthalate (DMT)", "epdm": "4", "file": "dimethyl-terephthalate-dmt.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dimethyl-terephthalate-dmt", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dimethyl Terephthalate (DMT) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethyl Terephthalate (DMT) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethylamine (DMA)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethylamine (DMA) | 2 | 1 | 2 | 2 | 2 | 2 | 4 | 3 | 4 | 3 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Dimethylamine (DMA)", "epdm": "1", "file": "dimethylamine-dma.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "dimethylamine-dma", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Dimethylamine (DMA) | 2 | 1 | 2 | 2 | 2 | 2 | 4 | 3 | 4 | 3 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethylamine (DMA) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethylaniline (Xylidine)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethylaniline (Xylidine) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dimethylaniline (Xylidine)", "epdm": "4", "file": "dimethylaniline-xylidine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dimethylaniline-xylidine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dimethylaniline (Xylidine) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethylaniline (Xylidine) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethyldisulfide (DMDS)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethyldisulfide (DMDS) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dimethyldisulfide (DMDS)", "epdm": "4", "file": "dimethyldisulfide-dmds.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "dimethyldisulfide-dmds", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Dimethyldisulfide (DMDS) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethyldisulfide (DMDS) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dimethylhydrazine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dimethylhydrazine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dimethylhydrazine", "epdm": "1", "file": "dimethylhydrazine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dimethylhydrazine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dimethylhydrazine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dimethylhydrazine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dinitrochlorobenzene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dinitrochlorobenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dinitrochlorobenzene", "epdm": "4", "file": "dinitrochlorobenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dinitrochlorobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dinitrochlorobenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dinitrochlorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dinitrogen Tetroxide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dinitrogen Tetroxide | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Dinitrogen Tetroxide", "epdm": "X", "file": "dinitrogen-tetroxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "dinitrogen-tetroxide", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Dinitrogen Tetroxide | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dinitrogen Tetroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dinitrotoluene (DNT)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dinitrotoluene (DNT) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dinitrotoluene (DNT)", "epdm": "4", "file": "dinitrotoluene-dnt.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dinitrotoluene-dnt", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dinitrotoluene (DNT) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dinitrotoluene (DNT) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dioctyl Phthalate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dioctyl Phthalate | 4 | 2 | 4 | 4 | 3 | 2 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Dioctyl Phthalate", "epdm": "2", "file": "dioctyl-phthalate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dioctyl-phthalate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Dioctyl Phthalate | 4 | 2 | 4 | 4 | 3 | 2 | 4 | 4 | 2 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dioctyl Phthalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dioctyl Sebacate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dioctyl Sebacate | 4 | 2 | 4 | 4 | 3 | 2 | 4 | 4 | 2 | 2 | 3 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Dioctyl Sebacate", "epdm": "2", "file": "dioctyl-sebacate.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dioctyl-sebacate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Dioctyl Sebacate | 4 | 2 | 4 | 4 | 3 | 2 | 4 | 4 | 2 | 2 | 3 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dioctyl Sebacate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dioctylamine\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dioctylamine | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dioctylamine", "epdm": "4", "file": "dioctylamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "dioctylamine", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Dioctylamine | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dioctylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dioxane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dioxane | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Dioxane", "epdm": "2", "file": "dioxane.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dioxane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dioxane | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dioxane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dioxolane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dioxolane | 4 | 2 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Dioxolane", "epdm": "2", "file": "dioxolane.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dioxolane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dioxolane | 4 | 2 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dioxolane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dipentene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dipentene | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dipentene", "epdm": "4", "file": "dipentene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dipentene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dipentene | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dipentene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diphenyl Oxides\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diphenyl Oxides | 4 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diphenyl Oxides", "epdm": "4", "file": "diphenyl-oxides.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diphenyl-oxides", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Diphenyl Oxides | 4 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diphenyl Oxides \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diphenyl\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diphenyl | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diphenyl", "epdm": "4", "file": "diphenyl.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diphenyl", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Diphenyl | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diphenyl \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diphenylamine (DPA)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diphenylamine (DPA) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diphenylamine (DPA)", "epdm": "4", "file": "diphenylamine-dpa.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diphenylamine-dpa", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Diphenylamine (DPA) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diphenylamine (DPA) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diphenylene Oxide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diphenylene Oxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Diphenylene Oxide", "epdm": "X", "file": "diphenylene-oxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "diphenylene-oxide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Diphenylene Oxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diphenylene Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Diphenylpropane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Diphenylpropane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Diphenylpropane", "epdm": "4", "file": "diphenylpropane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "diphenylpropane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Diphenylpropane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Diphenylpropane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Disilane\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Disilane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Disilane", "epdm": "X", "file": "disilane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "disilane", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Disilane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Disilane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dodecylbenzene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dodecylbenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dodecylbenzene", "epdm": "4", "file": "dodecylbenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dodecylbenzene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Dodecylbenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dodecylbenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Chemical 50-4\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Chemical 50-4 | X | 1 | 2 | 1 | X | 2 | X | 2 | 4 | X | 4 | 2 | 2 |\n\nSource: \n", "butyl": "2", "chemical": "Dow Chemical 50-4", "epdm": "1", "file": "dow-chemical-50-4.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "dow-chemical-50-4", "kalrez": "2", "neoprene": "2", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Dow Chemical 50-4 | X | 1 | 2 | 1 | X | 2 | X | 2 | 4 | X | 4 | 2 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Chemical 50-4 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Chemical ET378\n\n**Nitrile (NBR):** 4\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Chemical ET378 | 4 | X | 4 | 4 | 4 | 4 | 3 | 4 | X | 2 | X | X | X |\n\nSource: \n", "butyl": "4", "chemical": "Dow Chemical ET378", "epdm": "X", "file": "dow-chemical-et378.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dow-chemical-et378", "kalrez": "X", "neoprene": "4", "nitrile": "4", "polyacrylate": "3", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dow Chemical ET378 | 4 | X | 4 | 4 | 4 | 4 | 3 | 4 | X | 2 | X | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Chemical ET378 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Chemical ET588\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Chemical ET588 | 3 | 1 | 2 | 1 | X | 2 | X | 2 | 4 | X | 4 | 2 | 2 |\n\nSource: \n", "butyl": "2", "chemical": "Dow Chemical ET588", "epdm": "1", "file": "dow-chemical-et588.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "dow-chemical-et588", "kalrez": "2", "neoprene": "2", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Dow Chemical ET588 | 3 | 1 | 2 | 1 | X | 2 | X | 2 | 4 | X | 4 | 2 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Chemical ET588 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -11\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -11 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -11", "epdm": "1", "file": "dow-corning-11.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-11", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dow Corning -11 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -11 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning 1208, 4050, 6620, F-60, XF-60\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning 1208, 4050, 6620, F-60, XF-60 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Dow Corning 1208, 4050, 6620, F-60, XF-60", "epdm": "1", "file": "dow-corning-1208-4050-6620-f-60-xf-60.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "dow-corning-1208-4050-6620-f-60-xf-60", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Dow Corning 1208, 4050, 6620, F-60, XF-60 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning 1208, 4050, 6620, F-60, XF-60 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -1265 Fluorosilicone Fluid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -1265 Fluorosilicone Fluid | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -1265 Fluorosilicone Fluid", "epdm": "1", "file": "dow-corning-1265-fluorosilicone-fluid.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-1265-fluorosilicone-fluid", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Dow Corning -1265 Fluorosilicone Fluid | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -1265 Fluorosilicone Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -200\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -200 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -200", "epdm": "1", "file": "dow-corning-200.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-200", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Dow Corning -200 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -200 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -220\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -220 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Dow Corning -220", "epdm": "1", "file": "dow-corning-220.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "dow-corning-220", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Dow Corning -220 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -220 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -3\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -3 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -3", "epdm": "1", "file": "dow-corning-3.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-3", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dow Corning -3 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -3 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -33\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -33 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -33", "epdm": "1", "file": "dow-corning-33.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-33", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Dow Corning -33 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -33 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -4\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -4 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -4", "epdm": "1", "file": "dow-corning-4.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-4", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Dow Corning -4 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -4 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -44\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -44 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -44", "epdm": "1", "file": "dow-corning-44.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-44", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Dow Corning -44 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -44 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -5\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -5 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -5", "epdm": "1", "file": "dow-corning-5.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-5", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Dow Corning -5 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -5 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -510\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -510 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -510", "epdm": "1", "file": "dow-corning-510.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-510", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Dow Corning -510 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -510 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -55\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -55 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -55", "epdm": "1", "file": "dow-corning-55.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-55", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Dow Corning -55 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -55 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -550\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -550 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -550", "epdm": "1", "file": "dow-corning-550.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-550", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Dow Corning -550 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -550 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -704\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -704 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -704", "epdm": "1", "file": "dow-corning-704.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-704", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Dow Corning -704 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -704 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -705\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -705 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -705", "epdm": "1", "file": "dow-corning-705.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-705", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Dow Corning -705 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -705 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning -710\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning -710 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Corning -710", "epdm": "1", "file": "dow-corning-710.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-corning-710", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Dow Corning -710 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning -710 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Corning F-61\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Corning F-61 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Dow Corning F-61", "epdm": "1", "file": "dow-corning-f-61.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "dow-corning-f-61", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Dow Corning F-61 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-2"], "stale_after": "2028-08-11", "title": "Dow Corning F-61 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dow Guard\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dow Guard | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Dow Guard", "epdm": "1", "file": "dow-guard.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dow-guard", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Dow Guard | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Dow Guard \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dowanol P Mix\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dowanol P Mix | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Dowanol P Mix", "epdm": "X", "file": "dowanol-p-mix.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "dowanol-p-mix", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Dowanol P Mix | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Dowanol P Mix \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dowtherm, 209\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dowtherm, 209 | 3 | 1 | 2 | X | 3 | 2 | X | X | 4 | X | 3 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Dowtherm, 209", "epdm": "1", "file": "dowtherm-209.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "dowtherm-209", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "3", "source_quote": "Dowtherm, 209 | 3 | 1 | 2 | X | 3 | 2 | X | X | 4 | X | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Dowtherm, 209 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dowtherm, A\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dowtherm, A | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dowtherm, A", "epdm": "4", "file": "dowtherm-a.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dowtherm-a", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dowtherm, A | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Dowtherm, A \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dowtherm, E\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dowtherm, E | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dowtherm, E", "epdm": "4", "file": "dowtherm-e.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dowtherm-e", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dowtherm, E | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Dowtherm, E \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Drinking Water\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Drinking Water | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Drinking Water", "epdm": "1", "file": "drinking-water.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "drinking-water", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Drinking Water | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Drinking Water \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Dry Cleaning Fluids\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Dry Cleaning Fluids | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Dry Cleaning Fluids", "epdm": "4", "file": "dry-cleaning-fluids.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "dry-cleaning-fluids", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Dry Cleaning Fluids | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Dry Cleaning Fluids \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** DTE 20 Series, Mobil\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> DTE 20 Series, Mobil | 2 | 4 | 1 | X | 4 | 4 | 2 | 2 | 1 | 1 | 2 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "DTE 20 Series, Mobil", "epdm": "4", "file": "dte-20-series-mobil.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "dte-20-series-mobil", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "4", "source_quote": "DTE 20 Series, Mobil | 2 | 4 | 1 | X | 4 | 4 | 2 | 2 | 1 | 1 | 2 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "DTE 20 Series, Mobil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** DTE named series, Mobil, light-heavy\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> DTE named series, Mobil, light-heavy | 1 | 4 | 2 | 4 | 3 | 4 | X | 1 | 1 | 1 | 1 | 2 | 1 |\n\nSource: \n", "butyl": "4", "chemical": "DTE named series, Mobil, light-heavy", "epdm": "4", "file": "dte-named-series-mobil-light-heavy.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "dte-named-series-mobil-light-heavy", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "DTE named series, Mobil, light-heavy | 1 | 4 | 2 | 4 | 3 | 4 | X | 1 | 1 | 1 | 1 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "DTE named series, Mobil, light-heavy \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Elco 28-EP lubricant\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Elco 28-EP lubricant | 1 | 4 | 3 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Elco 28-EP lubricant", "epdm": "4", "file": "elco-28-ep-lubricant.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "elco-28-ep-lubricant", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Elco 28-EP lubricant | 1 | 4 | 3 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Elco 28-EP lubricant \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Epichlorohydrin\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Epichlorohydrin | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Epichlorohydrin", "epdm": "2", "file": "epichlorohydrin.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "epichlorohydrin", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Epichlorohydrin | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Epichlorohydrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Epoxy Resins\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Epoxy Resins | X | 1 | 1 | X | X | 1 | X | X | 4 | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Epoxy Resins", "epdm": "1", "file": "epoxy-resins.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "epoxy-resins", "kalrez": "1", "neoprene": "1", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Epoxy Resins | X | 1 | 1 | X | X | 1 | X | X | 4 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Epoxy Resins \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Erucic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Erucic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Erucic Acid", "epdm": "X", "file": "erucic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "erucic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Erucic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Erucic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Esam-6 Fluid\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Esam-6 Fluid | X | 1 | 2 | 1 | X | 2 | X | 2 | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Esam-6 Fluid", "epdm": "1", "file": "esam-6-fluid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "esam-6-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Esam-6 Fluid | X | 1 | 2 | 1 | X | 2 | X | 2 | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Esam-6 Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Esso Fuel 208\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Esso Fuel 208 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Esso Fuel 208", "epdm": "4", "file": "esso-fuel-208.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "esso-fuel-208", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Esso Fuel 208 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Esso Fuel 208 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Esso Golden Gasoline\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Esso Golden Gasoline | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Esso Golden Gasoline", "epdm": "4", "file": "esso-golden-gasoline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "esso-golden-gasoline", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Esso Golden Gasoline | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Esso Golden Gasoline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Esso Motor Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Esso Motor Oil | 1 | 4 | 3 | 4 | 4 | 4 | 1 | 4 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Esso Motor Oil", "epdm": "4", "file": "esso-motor-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "esso-motor-oil", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Esso Motor Oil | 1 | 4 | 3 | 4 | 4 | 4 | 1 | 4 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Esso Motor Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Esso Transmission Fluid (Type A)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Esso Transmission Fluid (Type A) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 3 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Esso Transmission Fluid (Type A)", "epdm": "4", "file": "esso-transmission-fluid-type-a.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "esso-transmission-fluid-type-a", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Esso Transmission Fluid (Type A) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 3 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Esso Transmission Fluid (Type A) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Esso WS2812 (MIL-L-7808A)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Esso WS2812 (MIL-L-7808A) | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Esso WS2812 (MIL-L-7808A)", "epdm": "4", "file": "esso-ws2812-mil-l-7808a.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "esso-ws2812-mil-l-7808a", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Esso WS2812 (MIL-L-7808A) | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Esso WS2812 (MIL-L-7808A) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Esso XP90-EP Lubricant\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Esso XP90-EP Lubricant | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Esso XP90-EP Lubricant", "epdm": "4", "file": "esso-xp90-ep-lubricant.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "esso-xp90-ep-lubricant", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Esso XP90-EP Lubricant | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Esso XP90-EP Lubricant \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Esstic 42, 43\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Esstic 42, 43 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Esstic 42, 43", "epdm": "4", "file": "esstic-42-43.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "esstic-42-43", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Esstic 42, 43 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Esstic 42, 43 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 3 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethane", "epdm": "4", "file": "ethane.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ethane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 3 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethanol Amine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethanol Amine | 2 | 1 | 2 | 2 | 2 | 2 | 4 | 3 | 4 | 3 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Ethanol Amine", "epdm": "1", "file": "ethanol-amine.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "ethanol-amine", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Ethanol Amine | 2 | 1 | 2 | 2 | 2 | 2 | 4 | 3 | 4 | 3 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethanol Amine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethanol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethanol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ethanol", "epdm": "1", "file": "ethanol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ethanol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ethanol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethanol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethers\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethers | 4 | 3 | 4 | 4 | 4 | 4 | 3 | 4 | 3 | 2 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethers", "epdm": "3", "file": "ethers.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethers", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "3", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethers | 4 | 3 | 4 | 4 | 4 | 4 | 3 | 4 | 3 | 2 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethers \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethoxyethyl Acetate (EGMEEA)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethoxyethyl Acetate (EGMEEA) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ethoxyethyl Acetate (EGMEEA)", "epdm": "1", "file": "ethoxyethyl-acetate-egmeea.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ethoxyethyl-acetate-egmeea", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ethoxyethyl Acetate (EGMEEA) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethoxyethyl Acetate (EGMEEA) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Acetate-Organic Ester\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Acetate-Organic Ester | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Ethyl Acetate-Organic Ester", "epdm": "2", "file": "ethyl-acetate-organic-ester.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-acetate-organic-ester", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Ethyl Acetate-Organic Ester | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Acetate-Organic Ester \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Acetoacetate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 3\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Acetoacetate | 4 | 2 | 4 | 3 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Ethyl Acetoacetate", "epdm": "2", "file": "ethyl-acetoacetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-acetoacetate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "2", "source_quote": "Ethyl Acetoacetate | 4 | 2 | 4 | 3 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Acetoacetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Acrylate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Acrylate | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Ethyl Acrylate", "epdm": "2", "file": "ethyl-acrylate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-acrylate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Ethyl Acrylate | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Acrylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Alcohol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Alcohol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ethyl Alcohol", "epdm": "1", "file": "ethyl-alcohol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ethyl-alcohol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ethyl Alcohol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Ammonium Dichloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Ammonium Dichloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Ethyl Ammonium Dichloride", "epdm": "X", "file": "ethyl-ammonium-dichloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ethyl-ammonium-dichloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Ethyl Ammonium Dichloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Ammonium Dichloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Benzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Benzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethyl Benzene", "epdm": "4", "file": "ethyl-benzene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-benzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethyl Benzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Benzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Benzoate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Benzoate | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethyl Benzoate", "epdm": "4", "file": "ethyl-benzoate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-benzoate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethyl Benzoate | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Benzoate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Bromide\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Bromide | 2 | 4 | 4 | X | X | 4 | X | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethyl Bromide", "epdm": "4", "file": "ethyl-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-bromide", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Ethyl Bromide | 2 | 4 | 4 | X | X | 4 | X | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Cellosolve\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Cellosolve | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Ethyl Cellosolve", "epdm": "2", "file": "ethyl-cellosolve.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-cellosolve", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethyl Cellosolve | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Cellosolve \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Cellulose\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Cellulose | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 4 | 2 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Ethyl Cellulose", "epdm": "2", "file": "ethyl-cellulose.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ethyl-cellulose", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Ethyl Cellulose | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 4 | 2 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Cellulose \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Chloride | 1 | 3 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethyl Chloride", "epdm": "3", "file": "ethyl-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "3", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethyl Chloride | 1 | 3 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Chlorocarbonate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Chlorocarbonate | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethyl Chlorocarbonate", "epdm": "2", "file": "ethyl-chlorocarbonate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-chlorocarbonate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethyl Chlorocarbonate | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Chlorocarbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Chloroformate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Chloroformate | 4 | 2 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Ethyl Chloroformate", "epdm": "2", "file": "ethyl-chloroformate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-chloroformate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethyl Chloroformate | 4 | 2 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Chloroformate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Ether\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Ether | 3 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 2 | 3 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Ethyl Ether", "epdm": "3", "file": "ethyl-ether.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-ether", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethyl Ether | 3 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 2 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Formate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Formate | 4 | 2 | 2 | 4 | X | 2 | X | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Ethyl Formate", "epdm": "2", "file": "ethyl-formate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ethyl-formate", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Ethyl Formate | 4 | 2 | 2 | 4 | X | 2 | X | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Formate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Hexanol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Hexanol | 1 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ethyl Hexanol", "epdm": "1", "file": "ethyl-hexanol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ethyl-hexanol", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ethyl Hexanol | 1 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Hexanol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Lactate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ethyl Lactate", "epdm": "1", "file": "ethyl-lactate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ethyl-lactate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ethyl Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Lactate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Mercaptan\n\n**Nitrile (NBR):** 4\n\n**EPDM:** X\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Mercaptan | 4 | X | 3 | 4 | 3 | 4 | X | 3 | 2 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethyl Mercaptan", "epdm": "X", "file": "ethyl-mercaptan.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "ethyl-mercaptan", "kalrez": "1", "neoprene": "3", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Ethyl Mercaptan | 4 | X | 3 | 4 | 3 | 4 | X | 3 | 2 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Mercaptan \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Nitrite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Nitrite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ethyl Nitrite", "epdm": "1", "file": "ethyl-nitrite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ethyl-nitrite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ethyl Nitrite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Nitrite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Oxalate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Oxalate | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethyl Oxalate", "epdm": "1", "file": "ethyl-oxalate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-oxalate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethyl Oxalate | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Oxalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Pentachlorobenzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Pentachlorobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethyl Pentachlorobenzene", "epdm": "4", "file": "ethyl-pentachlorobenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-pentachlorobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethyl Pentachlorobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Pentachlorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Pyridine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Pyridine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethyl Pyridine", "epdm": "4", "file": "ethyl-pyridine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-pyridine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Ethyl Pyridine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Pyridine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Silicate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Silicate | 1 | 1 | 1 | 2 | X | 1 | X | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ethyl Silicate", "epdm": "1", "file": "ethyl-silicate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ethyl-silicate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Ethyl Silicate | 1 | 1 | 1 | 2 | X | 1 | X | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Silicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Stearate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Stearate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethyl Stearate", "epdm": "4", "file": "ethyl-stearate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-stearate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Ethyl Stearate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Stearate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Sulfate\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Sulfate | X | 1 | X | X | X | X | X | X | 4 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Ethyl Sulfate", "epdm": "1", "file": "ethyl-sulfate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ethyl-sulfate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Ethyl Sulfate | X | 1 | X | X | X | X | X | X | 4 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Tertiary Butyl Ether\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Tertiary Butyl Ether | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Ethyl Tertiary Butyl Ether", "epdm": "X", "file": "ethyl-tertiary-butyl-ether.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ethyl-tertiary-butyl-ether", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Ethyl Tertiary Butyl Ether | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Tertiary Butyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyl Valerate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyl Valerate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethyl Valerate", "epdm": "4", "file": "ethyl-valerate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethyl-valerate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Ethyl Valerate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyl Valerate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylacrylic Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylacrylic Acid | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 4 | X | 4 | 4 | X | X |\n\nSource: \n", "butyl": "2", "chemical": "Ethylacrylic Acid", "epdm": "2", "file": "ethylacrylic-acid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylacrylic-acid", "kalrez": "X", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethylacrylic Acid | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 4 | X | 4 | 4 | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylacrylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylamine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ethylamine", "epdm": "1", "file": "ethylamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ethylamine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ethylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylcyclopentane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylcyclopentane | 1 | 4 | 3 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethylcyclopentane", "epdm": "4", "file": "ethylcyclopentane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylcyclopentane", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethylcyclopentane | 1 | 4 | 3 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylcyclopentane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene Chloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene Chloride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethylene Chloride", "epdm": "4", "file": "ethylene-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylene-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethylene Chloride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene Chlorohydrin\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene Chlorohydrin | 4 | 2 | 2 | 2 | 3 | 2 | 4 | 2 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Ethylene Chlorohydrin", "epdm": "2", "file": "ethylene-chlorohydrin.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ethylene-chlorohydrin", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "3", "source_quote": "Ethylene Chlorohydrin | 4 | 2 | 2 | 2 | 3 | 2 | 4 | 2 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene Chlorohydrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene Cyanohydrin\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene Cyanohydrin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethylene Cyanohydrin", "epdm": "4", "file": "ethylene-cyanohydrin.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylene-cyanohydrin", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Ethylene Cyanohydrin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene Cyanohydrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene Diamine\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene Diamine | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 2 | 4 | 4 | 4 | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Ethylene Diamine", "epdm": "1", "file": "ethylene-diamine.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ethylene-diamine", "kalrez": "2", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Ethylene Diamine | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 2 | 4 | 4 | 4 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene Diamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene Dibromide\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene Dibromide | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Ethylene Dibromide", "epdm": "3", "file": "ethylene-dibromide.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylene-dibromide", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethylene Dibromide | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene Dibromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene Dichloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene Dichloride | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Ethylene Dichloride", "epdm": "3", "file": "ethylene-dichloride.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylene-dichloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethylene Dichloride | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene Dichloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene Glycol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene Glycol | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ethylene Glycol", "epdm": "1", "file": "ethylene-glycol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ethylene-glycol", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ethylene Glycol | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene Glycol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene Hydrochloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene Hydrochloride | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Ethylene Hydrochloride", "epdm": "3", "file": "ethylene-hydrochloride.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylene-hydrochloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethylene Hydrochloride | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene Hydrochloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene Oxide, (12%) and Freon 12 (80%)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene Oxide, (12%) and Freon 12 (80%) | 3 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 2 |\n\nSource: \n", "butyl": "2", "chemical": "Ethylene Oxide, (12%) and Freon 12 (80%)", "epdm": "2", "file": "ethylene-oxide-12-and-freon-12-80.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylene-oxide-12-and-freon-12-80", "kalrez": "2", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethylene Oxide, (12%) and Freon 12 (80%) | 3 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene Oxide, (12%) and Freon 12 (80%) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene Oxide\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene Oxide | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Ethylene Oxide", "epdm": "3", "file": "ethylene-oxide.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylene-oxide", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethylene Oxide | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene Trichloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene Trichloride | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Ethylene Trichloride", "epdm": "3", "file": "ethylene-trichloride.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylene-trichloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethylene Trichloride | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene Trichloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylene\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylene | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethylene", "epdm": "4", "file": "ethylene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylene", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ethylene | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethyleneimine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethyleneimine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Ethyleneimine", "epdm": "X", "file": "ethyleneimine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ethyleneimine", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Ethyleneimine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethyleneimine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylmorpholene Stannous Octotate (50/50 mixture)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylmorpholene Stannous Octotate (50/50 mixture) | 4 | 2 | X | 4 | X | 2 | X | X | 4 | X | X | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Ethylmorpholene Stannous Octotate (50/50 mixture)", "epdm": "2", "file": "ethylmorpholene-stannous-octotate-50-50-mixture.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ethylmorpholene-stannous-octotate-50-50-mixture", "kalrez": "1", "neoprene": "X", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Ethylmorpholene Stannous Octotate (50/50 mixture) | 4 | 2 | X | 4 | X | 2 | X | X | 4 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylmorpholene Stannous Octotate (50/50 mixture) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylmorpholine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylmorpholine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ethylmorpholine", "epdm": "4", "file": "ethylmorpholine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ethylmorpholine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Ethylmorpholine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylmorpholine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ethylsulfuric Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ethylsulfuric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ethylsulfuric Acid", "epdm": "1", "file": "ethylsulfuric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ethylsulfuric-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ethylsulfuric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ethylsulfuric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** F-60 Fluid (Dow Corning)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> F-60 Fluid (Dow Corning) | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "F-60 Fluid (Dow Corning)", "epdm": "1", "file": "f-60-fluid-dow-corning.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "f-60-fluid-dow-corning", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "F-60 Fluid (Dow Corning) | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "F-60 Fluid (Dow Corning) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** F-61 Fluid (Dow Corning)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> F-61 Fluid (Dow Corning) | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "F-61 Fluid (Dow Corning)", "epdm": "1", "file": "f-61-fluid-dow-corning.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "f-61-fluid-dow-corning", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "F-61 Fluid (Dow Corning) | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "F-61 Fluid (Dow Corning) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fatty Acids\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 3\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fatty Acids | 2 | 3 | 2 | 4 | 3 | 3 | X | 2 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Fatty Acids", "epdm": "3", "file": "fatty-acids.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "fatty-acids", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Fatty Acids | 2 | 3 | 2 | 4 | 3 | 3 | X | 2 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fatty Acids \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** FC-43 Heptacosofluorotri-butylamine\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> FC-43 Heptacosofluorotri-butylamine | 1 | 1 | 1 | 4 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "FC-43 Heptacosofluorotri-butylamine", "epdm": "1", "file": "fc-43-heptacosofluorotri-butylamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "fc-43-heptacosofluorotri-butylamine", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "FC-43 Heptacosofluorotri-butylamine | 1 | 1 | 1 | 4 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "FC-43 Heptacosofluorotri-butylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** FC75 & FC77 (Fluorocarbon)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> FC75 & FC77 (Fluorocarbon) | 1 | 1 | 1 | 4 | 1 | 1 | X | 1 | 2 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "FC75 & FC77 (Fluorocarbon)", "epdm": "1", "file": "fc75-fc77-fluorocarbon.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "fc75-fc77-fluorocarbon", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "FC75 & FC77 (Fluorocarbon) | 1 | 1 | 1 | 4 | 1 | 1 | X | 1 | 2 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "FC75 & FC77 (Fluorocarbon) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferric Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferric Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferric Acetate", "epdm": "1", "file": "ferric-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ferric-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferric Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferric Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferric Ammonium Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferric Ammonium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferric Ammonium Sulfate", "epdm": "1", "file": "ferric-ammonium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ferric-ammonium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferric Ammonium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferric Ammonium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferric Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferric Chloride | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferric Chloride", "epdm": "1", "file": "ferric-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ferric-chloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferric Chloride | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferric Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferric Ferrocyanide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferric Ferrocyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferric Ferrocyanide", "epdm": "1", "file": "ferric-ferrocyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ferric-ferrocyanide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferric Ferrocyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferric Ferrocyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferric Hydroxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferric Hydroxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferric Hydroxide", "epdm": "1", "file": "ferric-hydroxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ferric-hydroxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferric Hydroxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferric Hydroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferric Nitrate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferric Nitrate | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferric Nitrate", "epdm": "1", "file": "ferric-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ferric-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferric Nitrate | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferric Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferric Persulfate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferric Persulfate | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Ferric Persulfate", "epdm": "1", "file": "ferric-persulfate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ferric-persulfate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Ferric Persulfate | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferric Persulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferric Sulfate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferric Sulfate | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Ferric Sulfate", "epdm": "1", "file": "ferric-sulfate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ferric-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Ferric Sulfate | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferric Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferrous Ammonium Citrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferrous Ammonium Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferrous Ammonium Citrate", "epdm": "1", "file": "ferrous-ammonium-citrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ferrous-ammonium-citrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferrous Ammonium Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferrous Ammonium Citrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferrous Ammonium Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferrous Ammonium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferrous Ammonium Sulfate", "epdm": "1", "file": "ferrous-ammonium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ferrous-ammonium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferrous Ammonium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferrous Ammonium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferrous Carbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferrous Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferrous Carbonate", "epdm": "1", "file": "ferrous-carbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ferrous-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferrous Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferrous Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferrous Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferrous Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Ferrous Chloride", "epdm": "X", "file": "ferrous-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ferrous-chloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Ferrous Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferrous Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferrous Iodide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferrous Iodide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferrous Iodide", "epdm": "1", "file": "ferrous-iodide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ferrous-iodide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferrous Iodide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferrous Iodide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferrous Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferrous Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferrous Sulfate", "epdm": "1", "file": "ferrous-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ferrous-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferrous Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferrous Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ferrous Tartrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ferrous Tartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ferrous Tartrate", "epdm": "1", "file": "ferrous-tartrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ferrous-tartrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ferrous Tartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Ferrous Tartrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fish Oil\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fish Oil | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Fish Oil", "epdm": "4", "file": "fish-oil.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "fish-oil", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Fish Oil | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fish Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fisher Reagent\n\n**Nitrile (NBR):** X\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fisher Reagent | X | 2 | X | X | X | X | X | X | X | X | X | X | X |\n\nSource: \n", "butyl": "X", "chemical": "Fisher Reagent", "epdm": "2", "file": "fisher-reagent.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fisher-reagent", "kalrez": "X", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fisher Reagent | X | 2 | X | X | X | X | X | X | X | X | X | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fisher Reagent \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fluorinated Cyclic Ethers\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fluorinated Cyclic Ethers | X | 1 | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Fluorinated Cyclic Ethers", "epdm": "1", "file": "fluorinated-cyclic-ethers.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fluorinated-cyclic-ethers", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fluorinated Cyclic Ethers | X | 1 | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fluorinated Cyclic Ethers \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fluorine (Gas)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fluorine (Gas) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Fluorine (Gas)", "epdm": "X", "file": "fluorine-gas.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fluorine-gas", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fluorine (Gas) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fluorine (Gas) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fluorine (Liquid)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fluorine (Liquid) | 4 | 4 | X | X | X | X | X | X | 2 | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Fluorine (Liquid)", "epdm": "4", "file": "fluorine-liquid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fluorine-liquid", "kalrez": "2", "neoprene": "X", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fluorine (Liquid) | 4 | 4 | X | X | X | X | X | X | 2 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fluorine (Liquid) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fluorobenzene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fluorobenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Fluorobenzene", "epdm": "4", "file": "fluorobenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "fluorobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Fluorobenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fluorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fluoroboric Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fluoroboric Acid | 1 | 1 | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Fluoroboric Acid", "epdm": "1", "file": "fluoroboric-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fluoroboric-acid", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fluoroboric Acid | 1 | 1 | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fluoroboric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fluorocarbon Oils\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fluorocarbon Oils | X | 1 | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Fluorocarbon Oils", "epdm": "1", "file": "fluorocarbon-oils.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fluorocarbon-oils", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fluorocarbon Oils | X | 1 | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fluorocarbon Oils \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fluoroform (Trifluoromethane)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fluoroform (Trifluoromethane) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Fluoroform (Trifluoromethane)", "epdm": "X", "file": "fluoroform-trifluoromethane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fluoroform-trifluoromethane", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fluoroform (Trifluoromethane) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fluoroform (Trifluoromethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fluorolube\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fluorolube | 1 | 1 | 1 | 4 | 1 | 1 | X | 1 | 2 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Fluorolube", "epdm": "1", "file": "fluorolube.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "fluorolube", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Fluorolube | 1 | 1 | 1 | 4 | 1 | 1 | X | 1 | 2 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fluorolube \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fluorophosphoric Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fluorophosphoric Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Fluorophosphoric Acid", "epdm": "X", "file": "fluorophosphoric-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fluorophosphoric-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fluorophosphoric Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fluorophosphoric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fluorosilicic Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fluorosilicic Acid | 1 | 2 | 1 | X | X | X | X | X | 2 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Fluorosilicic Acid", "epdm": "2", "file": "fluorosilicic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fluorosilicic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fluorosilicic Acid | 1 | 2 | 1 | X | X | X | X | X | 2 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fluorosilicic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fluorosulfonic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fluorosulfonic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Fluorosulfonic Acid", "epdm": "X", "file": "fluorosulfonic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fluorosulfonic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fluorosulfonic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fluorosulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Formaldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 3\n\n**SBR:** 3\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Formaldehyde | 3 | 2 | 3 | 3 | 2 | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Formaldehyde", "epdm": "2", "file": "formaldehyde.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "formaldehyde", "kalrez": "1", "neoprene": "3", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "2", "source_quote": "Formaldehyde | 3 | 2 | 3 | 3 | 2 | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Formaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Formamide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Formamide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Formamide", "epdm": "1", "file": "formamide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "formamide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Formamide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Formamide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Formic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Formic Acid | X | 1 | 1 | X | X | X | X | X | 4 | X | X | 3 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Formic Acid", "epdm": "1", "file": "formic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "formic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Formic Acid | X | 1 | 1 | X | X | X | X | X | 4 | X | X | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Formic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 11\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 11 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 2 | X | 2 | X | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, 11", "epdm": "4", "file": "freon-11.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-11", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Freon, 11 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 2 | X | 2 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 11 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 112 (Tetrachlorodifluoroethane)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 112 (Tetrachlorodifluoroethane) | 2 | 4 | 2 | 4 | 4 | 4 | X | 2 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, 112 (Tetrachlorodifluoroethane)", "epdm": "4", "file": "freon-112-tetrachlorodifluoroethane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "freon-112-tetrachlorodifluoroethane", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Freon, 112 (Tetrachlorodifluoroethane) | 2 | 4 | 2 | 4 | 4 | 4 | X | 2 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 112 (Tetrachlorodifluoroethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 113 + High and Low Aniline Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 3\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 113 + High and Low Aniline Oil | 1 | X | X | X | X | X | X | X | X | X | X | 4 | 3 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, 113 + High and Low Aniline Oil", "epdm": "X", "file": "freon-113-high-and-low-aniline-oil.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-113-high-and-low-aniline-oil", "kalrez": "3", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, 113 + High and Low Aniline Oil | 1 | X | X | X | X | X | X | X | X | X | X | 4 | 3 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 113 + High and Low Aniline Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 113\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 3\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 113 | 1 | 4 | 1 | 2 | 4 | 4 | X | 1 | 2 | 1 | X | X | 3 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, 113", "epdm": "4", "file": "freon-113.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-113", "kalrez": "3", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Freon, 113 | 1 | 4 | 1 | 2 | 4 | 4 | X | 1 | 2 | 1 | X | X | 3 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 113 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 114\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 114 | 1 | 1 | 1 | 1 | 4 | 1 | X | X | 1 | X | X | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Freon, 114", "epdm": "1", "file": "freon-114.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-114", "kalrez": "2", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "Freon, 114 | 1 | 1 | 1 | 1 | 4 | 1 | X | X | 1 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 114 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 114B2\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 114B2 | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 | 2 | X | X | X | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, 114B2", "epdm": "4", "file": "freon-114b2.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-114b2", "kalrez": "2", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Freon, 114B2 | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 | 2 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 114B2 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 115, 116\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 115, 116 | 1 | 1 | 1 | 1 | X | 1 | X | X | 2 | X | X | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Freon, 115, 116", "epdm": "1", "file": "freon-115-116.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-115-116", "kalrez": "2", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Freon, 115, 116 | 1 | 1 | 1 | 1 | X | 1 | X | X | 2 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 115, 116 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 12 and ASTM Oil #2 (50/50 Mixture)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 12 and ASTM Oil #2 (50/50 Mixture) | 2 | 4 | 3 | 4 | 4 | 4 | X | 2 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, 12 and ASTM Oil #2 (50/50 Mixture)", "epdm": "4", "file": "freon-12-and-astm-oil-2-50-50-mixture.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "freon-12-and-astm-oil-2-50-50-mixture", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Freon, 12 and ASTM Oil #2 (50/50 Mixture) | 2 | 4 | 3 | 4 | 4 | 4 | X | 2 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 12 and ASTM Oil #2 (50/50 Mixture) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 12 and Suniso 4G (50/50 Mixture)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 12 and Suniso 4G (50/50 Mixture) | 2 | 4 | 3 | 4 | 4 | 4 | X | 2 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, 12 and Suniso 4G (50/50 Mixture)", "epdm": "4", "file": "freon-12-and-suniso-4g-50-50-mixture.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "freon-12-and-suniso-4g-50-50-mixture", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Freon, 12 and Suniso 4G (50/50 Mixture) | 2 | 4 | 3 | 4 | 4 | 4 | X | 2 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 12 and Suniso 4G (50/50 Mixture) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 12\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 3\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 12 | 2 | 3 | 1 | 1 | 4 | 3 | X | 1 | 3 | 1 | 3 | X | 2 |\n\nSource: \n", "butyl": "3", "chemical": "Freon, 12", "epdm": "3", "file": "freon-12.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-12", "kalrez": "2", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "Freon, 12 | 2 | 3 | 1 | 1 | 4 | 3 | X | 1 | 3 | 1 | 3 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 12 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 123 (Dichlorotrifluoroethane)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 4\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 123 (Dichlorotrifluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 4 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, 123 (Dichlorotrifluoroethane)", "epdm": "X", "file": "freon-123-dichlorotrifluoroethane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-123-dichlorotrifluoroethane", "kalrez": "4", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, 123 (Dichlorotrifluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 4 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 123 (Dichlorotrifluoroethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 124 (Chlorotetrafluoroethane)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 124 (Chlorotetrafluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, 124 (Chlorotetrafluoroethane)", "epdm": "X", "file": "freon-124-chlorotetrafluoroethane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-124-chlorotetrafluoroethane", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, 124 (Chlorotetrafluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 124 (Chlorotetrafluoroethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 125 (Pentafluoroethane)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 125 (Pentafluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, 125 (Pentafluoroethane)", "epdm": "X", "file": "freon-125-pentafluoroethane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-125-pentafluoroethane", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, 125 (Pentafluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 125 (Pentafluoroethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 13\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 13 | 1 | 1 | 1 | 1 | 4 | 1 | X | 1 | 1 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Freon, 13", "epdm": "1", "file": "freon-13.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-13", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "Freon, 13 | 1 | 1 | 1 | 1 | 4 | 1 | X | 1 | 1 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 13 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 134a (Tetrafluoroethane)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 3\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 134a (Tetrafluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 3 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, 134a (Tetrafluoroethane)", "epdm": "X", "file": "freon-134a-tetrafluoroethane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-134a-tetrafluoroethane", "kalrez": "3", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, 134a (Tetrafluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 3 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 134a (Tetrafluoroethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 13B1\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 13B1 | 1 | 1 | 1 | 1 | 4 | 1 | X | 1 | 1 | X | 2 | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Freon, 13B1", "epdm": "1", "file": "freon-13b1.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-13b1", "kalrez": "2", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "Freon, 13B1 | 1 | 1 | 1 | 1 | 4 | 1 | X | 1 | 1 | X | 2 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 13B1 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 14\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 14 | 1 | 1 | 1 | 1 | 4 | 1 | X | 1 | 1 | 1 | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Freon, 14", "epdm": "1", "file": "freon-14.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-14", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "Freon, 14 | 1 | 1 | 1 | 1 | 4 | 1 | X | 1 | 1 | 1 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 14 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 141b (Dichlorofluoroethane)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 141b (Dichlorofluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, 141b (Dichlorofluoroethane)", "epdm": "X", "file": "freon-141b-dichlorofluoroethane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-141b-dichlorofluoroethane", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, 141b (Dichlorofluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 141b (Dichlorofluoroethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 142b\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 3\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 142b | 2 | 4 | 1 | X | X | X | X | X | 2 | X | X | 4 | 3 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, 142b", "epdm": "4", "file": "freon-142b.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-142b", "kalrez": "3", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, 142b | 2 | 4 | 1 | X | X | X | X | X | 2 | X | X | 4 | 3 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 142b \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 152a (Difluoroethane)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 3\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 152a (Difluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 3 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, 152a (Difluoroethane)", "epdm": "X", "file": "freon-152a-difluoroethane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-152a-difluoroethane", "kalrez": "3", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, 152a (Difluoroethane) | X | X | X | X | X | X | X | X | X | X | X | X | 3 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 152a (Difluoroethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 21\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 21 | 4 | 4 | 3 | 4 | 4 | 4 | X | 4 | 4 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, 21", "epdm": "4", "file": "freon-21.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "freon-21", "kalrez": "1", "neoprene": "3", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Freon, 21 | 4 | 4 | 3 | 4 | 4 | 4 | X | 4 | 4 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 21 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 218\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 218 | 1 | 1 | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, 218", "epdm": "1", "file": "freon-218.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-218", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, 218 | 1 | 1 | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 218 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 22 and ASTM Oil #2 (50/50 Mixture)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 22 and ASTM Oil #2 (50/50 Mixture) | 4 | 4 | 2 | 4 | 4 | 4 | 2 | X | 2 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, 22 and ASTM Oil #2 (50/50 Mixture)", "epdm": "4", "file": "freon-22-and-astm-oil-2-50-50-mixture.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-22-and-astm-oil-2-50-50-mixture", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "2", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Freon, 22 and ASTM Oil #2 (50/50 Mixture) | 4 | 4 | 2 | 4 | 4 | 4 | 2 | X | 2 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 22 and ASTM Oil #2 (50/50 Mixture) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 22 (Chlorodifluoroethane)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 22 (Chlorodifluoroethane) | 4 | 3 | 1 | 1 | 4 | 3 | 2 | 1 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Freon, 22 (Chlorodifluoroethane)", "epdm": "3", "file": "freon-22-chlorodifluoroethane.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-22-chlorodifluoroethane", "kalrez": "1", "neoprene": "1", "nitrile": "4", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "Freon, 22 (Chlorodifluoroethane) | 4 | 3 | 1 | 1 | 4 | 3 | 2 | 1 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 22 (Chlorodifluoroethane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 23 (Fluoroform)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 23 (Fluoroform) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, 23 (Fluoroform)", "epdm": "X", "file": "freon-23-fluoroform.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-23-fluoroform", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, 23 (Fluoroform) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 23 (Fluoroform) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 31\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 31 | 4 | 1 | 1 | 2 | X | 1 | X | 2 | 4 | X | X | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Freon, 31", "epdm": "1", "file": "freon-31.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "freon-31", "kalrez": "2", "neoprene": "1", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Freon, 31 | 4 | 1 | 1 | 2 | X | 1 | X | 2 | 4 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 31 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 32\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 32 | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 4 | X | X | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Freon, 32", "epdm": "1", "file": "freon-32.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-32", "kalrez": "2", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Freon, 32 | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 4 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 32 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, 502\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, 502 | 2 | 1 | 1 | 1 | X | 1 | X | X | 2 | X | X | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Freon, 502", "epdm": "1", "file": "freon-502.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-502", "kalrez": "2", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Freon, 502 | 2 | 1 | 1 | 1 | X | 1 | X | X | 2 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, 502 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, BF (R112)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, BF (R112) | 2 | 4 | 2 | 4 | 4 | 4 | X | 2 | 1 | X | X | X | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, BF (R112)", "epdm": "4", "file": "freon-bf-r112.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "freon-bf-r112", "kalrez": "2", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Freon, BF (R112) | 2 | 4 | 2 | 4 | 4 | 4 | X | 2 | 1 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, BF (R112) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, C316\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, C316 | 1 | 1 | X | X | X | X | X | X | 1 | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, C316", "epdm": "1", "file": "freon-c316.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-c316", "kalrez": "2", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, C316 | 1 | 1 | X | X | X | X | X | X | 1 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, C316 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, C318\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, C318 | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 2 | X | X | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Freon, C318", "epdm": "1", "file": "freon-c318.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-c318", "kalrez": "2", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Freon, C318 | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 2 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, C318 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, K-142b\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 4\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, K-142b | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 4 | X | X | X | 4 |\n\nSource: \n", "butyl": "1", "chemical": "Freon, K-142b", "epdm": "1", "file": "freon-k-142b.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-k-142b", "kalrez": "4", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Freon, K-142b | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 4 | X | X | X | 4 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, K-142b \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, K-152a\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 4\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, K-152a | 1 | 1 | 1 | 1 | X | 1 | X | 4 | 4 | X | X | X | 4 |\n\nSource: \n", "butyl": "1", "chemical": "Freon, K-152a", "epdm": "1", "file": "freon-k-152a.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "freon-k-152a", "kalrez": "4", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Freon, K-152a | 1 | 1 | 1 | 1 | X | 1 | X | 4 | 4 | X | X | X | 4 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, K-152a \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, MF (R11)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, MF (R11) | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 | 2 | 3 | X | X | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, MF (R11)", "epdm": "4", "file": "freon-mf-r11.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-mf-r11", "kalrez": "2", "neoprene": "4", "nitrile": "2", "polyacrylate": "X", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Freon, MF (R11) | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 | 2 | 3 | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, MF (R11) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, PCA (R113)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, PCA (R113) | 1 | 4 | 1 | 2 | 4 | 4 | X | 1 | 2 | 1 | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, PCA (R113)", "epdm": "4", "file": "freon-pca-r113.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-pca-r113", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Freon, PCA (R113) | 1 | 4 | 1 | 2 | 4 | 4 | X | 1 | 2 | 1 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, PCA (R113) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, T-P35\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, T-P35 | 1 | 1 | X | X | X | X | X | X | 1 | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, T-P35", "epdm": "1", "file": "freon-t-p35.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-t-p35", "kalrez": "2", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, T-P35 | 1 | 1 | X | X | X | X | X | X | 1 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, T-P35 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, T-WD602\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, T-WD602 | 2 | 2 | X | X | X | X | X | X | 1 | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, T-WD602", "epdm": "2", "file": "freon-t-wd602.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-t-wd602", "kalrez": "2", "neoprene": "X", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, T-WD602 | 2 | 2 | X | X | X | X | X | X | 1 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, T-WD602 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, TA\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, TA | 1 | 2 | X | X | X | X | X | X | 3 | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, TA", "epdm": "2", "file": "freon-ta.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-ta", "kalrez": "2", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, TA | 1 | 2 | X | X | X | X | X | X | 3 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, TA \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, TC\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, TC | 1 | 2 | X | X | X | X | X | X | 1 | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, TC", "epdm": "2", "file": "freon-tc.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-tc", "kalrez": "2", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, TC | 1 | 2 | X | X | X | X | X | X | 1 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, TC \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, TF (R113)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, TF (R113) | 1 | 4 | 1 | 2 | 4 | 4 | X | 1 | 2 | 1 | X | X | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Freon, TF (R113)", "epdm": "4", "file": "freon-tf-r113.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "freon-tf-r113", "kalrez": "2", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Freon, TF (R113) | 1 | 4 | 1 | 2 | 4 | 4 | X | 1 | 2 | 1 | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, TF (R113) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Freon, TMC\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 3\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Freon, TMC | 2 | 3 | X | X | X | X | X | X | 1 | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Freon, TMC", "epdm": "3", "file": "freon-tmc.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "freon-tmc", "kalrez": "2", "neoprene": "X", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Freon, TMC | 2 | 3 | X | X | X | X | X | X | 1 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Freon, TMC \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fuel Oil, 1, and 2\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fuel Oil, 1, and 2 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Fuel Oil, 1, and 2", "epdm": "4", "file": "fuel-oil-1-and-2.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "fuel-oil-1-and-2", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Fuel Oil, 1, and 2 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fuel Oil, 1, and 2 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fuel Oil, #6\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fuel Oil, #6 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Fuel Oil, #6", "epdm": "4", "file": "fuel-oil-6.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "fuel-oil-6", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Fuel Oil, #6 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fuel Oil, #6 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fuel Oil, Acidic\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fuel Oil, Acidic | 1 | 4 | 2 | 4 | 1 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Fuel Oil, Acidic", "epdm": "4", "file": "fuel-oil-acidic.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "fuel-oil-acidic", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Fuel Oil, Acidic | 1 | 4 | 2 | 4 | 1 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fuel Oil, Acidic \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fumaric Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fumaric Acid | 1 | 2 | 2 | 2 | 2 | 4 | 4 | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Fumaric Acid", "epdm": "2", "file": "fumaric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "fumaric-acid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Fumaric Acid | 1 | 2 | 2 | 2 | 2 | 4 | 4 | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fumaric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fuming Sulphuric Acid (20/25% Oleum)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fuming Sulphuric Acid (20/25% Oleum) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Fuming Sulphuric Acid (20/25% Oleum)", "epdm": "4", "file": "fuming-sulphuric-acid-20-25-oleum.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "fuming-sulphuric-acid-20-25-oleum", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Fuming Sulphuric Acid (20/25% Oleum) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fuming Sulphuric Acid (20/25% Oleum) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Furaldehyde\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Furaldehyde | 4 | 2 | 4 | X | X | X | X | X | 4 | X | X | 4 | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Furaldehyde", "epdm": "2", "file": "furaldehyde.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "furaldehyde", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Furaldehyde | 4 | 2 | 4 | X | X | X | X | X | 4 | X | X | 4 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Furaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Furan (Furfuran)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Furan (Furfuran) | 4 | 3 | 4 | 4 | X | 4 | 4 | 4 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Furan (Furfuran)", "epdm": "3", "file": "furan-furfuran.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "furan-furfuran", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Furan (Furfuran) | 4 | 3 | 4 | 4 | X | 4 | 4 | 4 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Furan (Furfuran) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Furfural (Furfuraldehyde)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Furfural (Furfuraldehyde) | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 3 | 4 | 3 | X | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Furfural (Furfuraldehyde)", "epdm": "2", "file": "furfural-furfuraldehyde.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "furfural-furfuraldehyde", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Furfural (Furfuraldehyde) | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 3 | 4 | 3 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Furfural (Furfuraldehyde) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Furfuraldehyde\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Furfuraldehyde | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 3 | 4 | 3 | X | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Furfuraldehyde", "epdm": "2", "file": "furfuraldehyde.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "furfuraldehyde", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Furfuraldehyde | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 3 | 4 | 3 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Furfuraldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Furfuryl Alcohol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Furfuryl Alcohol | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | X | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Furfuryl Alcohol", "epdm": "2", "file": "furfuryl-alcohol.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "furfuryl-alcohol", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Furfuryl Alcohol | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | X | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Furfuryl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Furoic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Furoic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Furoic Acid", "epdm": "X", "file": "furoic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "furoic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Furoic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Furoic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Furyl Carbinol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Furyl Carbinol | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | X | 4 | 4 | X | X |\n\nSource: \n", "butyl": "2", "chemical": "Furyl Carbinol", "epdm": "2", "file": "furyl-carbinol.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "furyl-carbinol", "kalrez": "X", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Furyl Carbinol | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | X | 4 | 4 | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Furyl Carbinol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fyrquel 150 220 300 550\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fyrquel 150 220 300 550 | 4 | 1 | 4 | 4 | 1 | 1 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Fyrquel 150 220 300 550", "epdm": "1", "file": "fyrquel-150-220-300-550.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "fyrquel-150-220-300-550", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Fyrquel 150 220 300 550 | 4 | 1 | 4 | 4 | 1 | 1 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fyrquel 150 220 300 550 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fyrquel 90, 100, 500\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fyrquel 90, 100, 500 | 4 | 1 | X | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Fyrquel 90, 100, 500", "epdm": "1", "file": "fyrquel-90-100-500.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fyrquel-90-100-500", "kalrez": "1", "neoprene": "X", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fyrquel 90, 100, 500 | 4 | 1 | X | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fyrquel 90, 100, 500 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Fyrquel A60\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Fyrquel A60 | 4 | 2 | 4 | X | X | X | X | X | 4 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Fyrquel A60", "epdm": "2", "file": "fyrquel-a60.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "fyrquel-a60", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Fyrquel A60 | 4 | 2 | 4 | X | X | X | X | X | 4 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Fyrquel A60 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gallic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gallic Acid | 2 | 2 | 2 | 2 | X | 2 | 4 | 2 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Gallic Acid", "epdm": "2", "file": "gallic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "gallic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Gallic Acid | 2 | 2 | 2 | 2 | X | 2 | 4 | 2 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gallic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gasoline\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gasoline | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Gasoline", "epdm": "4", "file": "gasoline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "gasoline", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Gasoline | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gasoline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gelatin\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gelatin | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Gelatin", "epdm": "1", "file": "gelatin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "gelatin", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Gelatin | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gelatin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Germane (Germanium Tetrahydride)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Germane (Germanium Tetrahydride) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Germane (Germanium Tetrahydride)", "epdm": "X", "file": "germane-germanium-tetrahydride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "germane-germanium-tetrahydride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Germane (Germanium Tetrahydride) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Germane (Germanium Tetrahydride) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Girling Brake Fluid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Girling Brake Fluid | 3 | 1 | 2 | 1 | X | 2 | X | 2 | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Girling Brake Fluid", "epdm": "1", "file": "girling-brake-fluid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "girling-brake-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Girling Brake Fluid | 3 | 1 | 2 | 1 | X | 2 | X | 2 | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Girling Brake Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glauber\u2019s Salt\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glauber\u2019s Salt | 4 | 2 | 2 | 4 | X | 2 | 4 | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Glauber\u2019s Salt", "epdm": "2", "file": "glauber-s-salt.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "glauber-s-salt", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Glauber\u2019s Salt | 4 | 2 | 2 | 4 | X | 2 | 4 | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glauber\u2019s Salt \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gluconic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gluconic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Gluconic Acid", "epdm": "1", "file": "gluconic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "gluconic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Gluconic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gluconic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glucose\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glucose | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glucose", "epdm": "1", "file": "glucose.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glucose", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Glucose | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glucose \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glue\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glue | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Glue", "epdm": "X", "file": "glue.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "glue", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Glue | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glue \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glutamic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glutamic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glutamic Acid", "epdm": "1", "file": "glutamic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glutamic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Glutamic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glutamic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glycerine (Glycerol)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glycerine (Glycerol) | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glycerine (Glycerol)", "epdm": "1", "file": "glycerine-glycerol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glycerine-glycerol", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Glycerine (Glycerol) | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glycerine (Glycerol) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glycerol Dichlorohydrin\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glycerol Dichlorohydrin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glycerol Dichlorohydrin", "epdm": "1", "file": "glycerol-dichlorohydrin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glycerol-dichlorohydrin", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Glycerol Dichlorohydrin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glycerol Dichlorohydrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glycerol Monochlorohydrin\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glycerol Monochlorohydrin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glycerol Monochlorohydrin", "epdm": "1", "file": "glycerol-monochlorohydrin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glycerol-monochlorohydrin", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Glycerol Monochlorohydrin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glycerol Monochlorohydrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glycerol Triacetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glycerol Triacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glycerol Triacetate", "epdm": "1", "file": "glycerol-triacetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glycerol-triacetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Glycerol Triacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glycerol Triacetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glycerophosphoric Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glycerophosphoric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glycerophosphoric Acid", "epdm": "1", "file": "glycerophosphoric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glycerophosphoric-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Glycerophosphoric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glycerophosphoric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glyceryl Phosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glyceryl Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glyceryl Phosphate", "epdm": "1", "file": "glyceryl-phosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glyceryl-phosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Glyceryl Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glyceryl Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glycidol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glycidol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glycidol", "epdm": "1", "file": "glycidol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glycidol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Glycidol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glycidol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glycol Monoether\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glycol Monoether | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Glycol Monoether", "epdm": "X", "file": "glycol-monoether.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "glycol-monoether", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Glycol Monoether | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glycol Monoether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glycolic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glycolic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glycolic Acid", "epdm": "1", "file": "glycolic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glycolic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Glycolic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glycolic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glycols\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glycols | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glycols", "epdm": "1", "file": "glycols.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glycols", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Glycols | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glycols \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Glycoxylic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Glycoxylic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Glycoxylic Acid", "epdm": "1", "file": "glycoxylic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "glycoxylic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Glycoxylic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Glycoxylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Grease Petroleum Base\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Grease Petroleum Base | 1 | 4 | 3 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Grease Petroleum Base", "epdm": "4", "file": "grease-petroleum-base.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "grease-petroleum-base", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Grease Petroleum Base | 1 | 4 | 3 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Grease Petroleum Base \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Green Sulfate Liquor\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Green Sulfate Liquor | 2 | 1 | 2 | 2 | X | 1 | 4 | 2 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Green Sulfate Liquor", "epdm": "1", "file": "green-sulfate-liquor.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "green-sulfate-liquor", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Green Sulfate Liquor | 2 | 1 | 2 | 2 | X | 1 | 4 | 2 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Green Sulfate Liquor \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gulf Endurance Oils\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gulf Endurance Oils | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Gulf Endurance Oils", "epdm": "4", "file": "gulf-endurance-oils.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "gulf-endurance-oils", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Gulf Endurance Oils | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gulf Endurance Oils \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gulf FR Fluids (Emulsion)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gulf FR Fluids (Emulsion) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Gulf FR Fluids (Emulsion)", "epdm": "4", "file": "gulf-fr-fluids-emulsion.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "gulf-fr-fluids-emulsion", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Gulf FR Fluids (Emulsion) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gulf FR Fluids (Emulsion) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gulf FR G-Fluids\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gulf FR G-Fluids | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Gulf FR G-Fluids", "epdm": "1", "file": "gulf-fr-g-fluids.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "gulf-fr-g-fluids", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Gulf FR G-Fluids | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gulf FR G-Fluids \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gulf FR P-Fluids\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gulf FR P-Fluids | 4 | 2 | 4 | 4 | 1 | 2 | 4 | 4 | 2 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Gulf FR P-Fluids", "epdm": "2", "file": "gulf-fr-p-fluids.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "gulf-fr-p-fluids", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Gulf FR P-Fluids | 4 | 2 | 4 | 4 | 1 | 2 | 4 | 4 | 2 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gulf FR P-Fluids \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gulf Harmony Oils\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gulf Harmony Oils | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Gulf Harmony Oils", "epdm": "4", "file": "gulf-harmony-oils.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "gulf-harmony-oils", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Gulf Harmony Oils | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gulf Harmony Oils \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gulf High Temperature Grease\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gulf High Temperature Grease | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Gulf High Temperature Grease", "epdm": "4", "file": "gulf-high-temperature-grease.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "gulf-high-temperature-grease", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Gulf High Temperature Grease | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gulf High Temperature Grease \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gulf Legion Oils\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gulf Legion Oils | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Gulf Legion Oils", "epdm": "4", "file": "gulf-legion-oils.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "gulf-legion-oils", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Gulf Legion Oils | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gulf Legion Oils \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gulf Paramount Oils\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gulf Paramount Oils | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Gulf Paramount Oils", "epdm": "4", "file": "gulf-paramount-oils.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "gulf-paramount-oils", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Gulf Paramount Oils | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gulf Paramount Oils \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gulf Security Oils\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gulf Security Oils | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Gulf Security Oils", "epdm": "4", "file": "gulf-security-oils.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "gulf-security-oils", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Gulf Security Oils | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gulf Security Oils \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Gulfcrown Grease\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Gulfcrown Grease | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Gulfcrown Grease", "epdm": "4", "file": "gulfcrown-grease.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "gulfcrown-grease", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Gulfcrown Grease | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Gulfcrown Grease \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Halothane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Halothane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Halothane", "epdm": "4", "file": "halothane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "halothane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Halothane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Halothane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Halowax Oil\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Halowax Oil | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Halowax Oil", "epdm": "4", "file": "halowax-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "halowax-oil", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Halowax Oil | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Halowax Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hannifin Lube A\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hannifin Lube A | 1 | 4 | 1 | 2 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hannifin Lube A", "epdm": "4", "file": "hannifin-lube-a.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hannifin-lube-a", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Hannifin Lube A | 1 | 4 | 1 | 2 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hannifin Lube A \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Heavy Water\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Heavy Water | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | X | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Heavy Water", "epdm": "1", "file": "heavy-water.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "heavy-water", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Heavy Water | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | X | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Heavy Water \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** HEF-2 (High Energy Fuel)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> HEF-2 (High Energy Fuel) | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "HEF-2 (High Energy Fuel)", "epdm": "4", "file": "hef-2-high-energy-fuel.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hef-2-high-energy-fuel", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "HEF-2 (High Energy Fuel) | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "HEF-2 (High Energy Fuel) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Helium\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Helium | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Helium", "epdm": "1", "file": "helium.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "helium", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Helium | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Helium \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Heptachlor\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Heptachlor | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Heptachlor", "epdm": "4", "file": "heptachlor.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "heptachlor", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Heptachlor | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Heptachlor \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Heptachlorobutene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Heptachlorobutene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Heptachlorobutene", "epdm": "4", "file": "heptachlorobutene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "heptachlorobutene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Heptachlorobutene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Heptachlorobutene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Heptaldehyde (Heptanal)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Heptaldehyde (Heptanal) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Heptaldehyde (Heptanal)", "epdm": "4", "file": "heptaldehyde-heptanal.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "heptaldehyde-heptanal", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Heptaldehyde (Heptanal) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Heptaldehyde (Heptanal) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Heptane or n-Heptane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Heptane or n-Heptane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 2 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Heptane or n-Heptane", "epdm": "4", "file": "heptane-or-n-heptane.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "heptane-or-n-heptane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Heptane or n-Heptane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 2 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Heptane or n-Heptane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Heptanoic Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Heptanoic Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Heptanoic Acid", "epdm": "4", "file": "heptanoic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "heptanoic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Heptanoic Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Heptanoic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexachloroacetone\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexachloroacetone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hexachloroacetone", "epdm": "1", "file": "hexachloroacetone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hexachloroacetone", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Hexachloroacetone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexachloroacetone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexachlorobutadiene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexachlorobutadiene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hexachlorobutadiene", "epdm": "4", "file": "hexachlorobutadiene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hexachlorobutadiene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hexachlorobutadiene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexachlorobutadiene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexachlorobutene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexachlorobutene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hexachlorobutene", "epdm": "4", "file": "hexachlorobutene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hexachlorobutene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hexachlorobutene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexachlorobutene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexachloroethane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexachloroethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hexachloroethane", "epdm": "4", "file": "hexachloroethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hexachloroethane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hexachloroethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexachloroethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexaethyl Tetraphosphate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexaethyl Tetraphosphate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hexaethyl Tetraphosphate", "epdm": "X", "file": "hexaethyl-tetraphosphate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hexaethyl-tetraphosphate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hexaethyl Tetraphosphate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexaethyl Tetraphosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexafluoroethane (F-116)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexafluoroethane (F-116) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Hexafluoroethane (F-116)", "epdm": "X", "file": "hexafluoroethane-f-116.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hexafluoroethane-f-116", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hexafluoroethane (F-116) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexafluoroethane (F-116) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexafluoroxylene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexafluoroxylene | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hexafluoroxylene", "epdm": "X", "file": "hexafluoroxylene-2.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hexafluoroxylene-2", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hexafluoroxylene | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexafluoroxylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexafluoroxylene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexafluoroxylene | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hexafluoroxylene", "epdm": "X", "file": "hexafluoroxylene.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hexafluoroxylene", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hexafluoroxylene | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexafluoroxylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexaldehyde or n-Hexaldehyde\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexaldehyde or n-Hexaldehyde | 4 | 1 | 1 | 4 | 2 | 2 | X | 3 | 4 | 2 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Hexaldehyde or n-Hexaldehyde", "epdm": "1", "file": "hexaldehyde-or-n-hexaldehyde.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "hexaldehyde-or-n-hexaldehyde", "kalrez": "1", "neoprene": "1", "nitrile": "4", "polyacrylate": "X", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Hexaldehyde or n-Hexaldehyde | 4 | 1 | 1 | 4 | 2 | 2 | X | 3 | 4 | 2 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexaldehyde or n-Hexaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexamethyldisilizane\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexamethyldisilizane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hexamethyldisilizane", "epdm": "X", "file": "hexamethyldisilizane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hexamethyldisilizane", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hexamethyldisilizane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexamethyldisilizane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexamethylene (Cyclohexane)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexamethylene (Cyclohexane) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hexamethylene (Cyclohexane)", "epdm": "4", "file": "hexamethylene-cyclohexane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "hexamethylene-cyclohexane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Hexamethylene (Cyclohexane) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexamethylene (Cyclohexane) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexamethylene Diammonium Adipate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexamethylene Diammonium Adipate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hexamethylene Diammonium Adipate", "epdm": "4", "file": "hexamethylene-diammonium-adipate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hexamethylene-diammonium-adipate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hexamethylene Diammonium Adipate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexamethylene Diammonium Adipate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexamethylenediamine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexamethylenediamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Hexamethylenediamine", "epdm": "1", "file": "hexamethylenediamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hexamethylenediamine", "kalrez": "2", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Hexamethylenediamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexamethylenediamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexamethylenetetramine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexamethylenetetramine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Hexamethylenetetramine", "epdm": "1", "file": "hexamethylenetetramine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hexamethylenetetramine", "kalrez": "2", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Hexamethylenetetramine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexamethylenetetramine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexane or n-Hexane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexane or n-Hexane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 2 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hexane or n-Hexane", "epdm": "4", "file": "hexane-or-n-hexane.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "hexane-or-n-hexane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Hexane or n-Hexane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 2 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexane or n-Hexane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexene-1 or n-Hexene-1\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexene-1 or n-Hexene-1 | 2 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 2 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hexene-1 or n-Hexene-1", "epdm": "4", "file": "hexene-1-or-n-hexene-1.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "hexene-1-or-n-hexene-1", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Hexene-1 or n-Hexene-1 | 2 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 2 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexene-1 or n-Hexene-1 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexone (Methyl Isobutyl Ketone)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexone (Methyl Isobutyl Ketone) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hexone (Methyl Isobutyl Ketone)", "epdm": "1", "file": "hexone-methyl-isobutyl-ketone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hexone-methyl-isobutyl-ketone", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Hexone (Methyl Isobutyl Ketone) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexone (Methyl Isobutyl Ketone) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexyl Acetate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexyl Acetate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hexyl Acetate", "epdm": "4", "file": "hexyl-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "hexyl-acetate", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Hexyl Acetate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexyl Alcohol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexyl Alcohol | 1 | 3 | 2 | 1 | 2 | 3 | 4 | 2 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Hexyl Alcohol", "epdm": "3", "file": "hexyl-alcohol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "hexyl-alcohol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Hexyl Alcohol | 1 | 3 | 2 | 1 | 2 | 3 | 4 | 2 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexylene Glycol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexylene Glycol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hexylene Glycol", "epdm": "1", "file": "hexylene-glycol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hexylene-glycol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Hexylene Glycol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexylene Glycol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hexylresorcinol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hexylresorcinol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hexylresorcinol", "epdm": "4", "file": "hexylresorcinol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hexylresorcinol", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hexylresorcinol | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hexylresorcinol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** High Viscosity Lubricant, H2\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> High Viscosity Lubricant, H2 | 1 | 1 | 2 | 1 | 1 | 1 | 4 | X | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "High Viscosity Lubricant, H2", "epdm": "1", "file": "high-viscosity-lubricant-h2.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "high-viscosity-lubricant-h2", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "High Viscosity Lubricant, H2 | 1 | 1 | 2 | 1 | 1 | 1 | 4 | X | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "High Viscosity Lubricant, H2 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** High Viscosity Lubricant, U4\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> High Viscosity Lubricant, U4 | 1 | 1 | 2 | 1 | 1 | 1 | 4 | X | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "High Viscosity Lubricant, U4", "epdm": "1", "file": "high-viscosity-lubricant-u4.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "high-viscosity-lubricant-u4", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "High Viscosity Lubricant, U4 | 1 | 1 | 2 | 1 | 1 | 1 | 4 | X | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "High Viscosity Lubricant, U4 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** HiLo MS #1\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> HiLo MS #1 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "HiLo MS #1", "epdm": "1", "file": "hilo-ms-1.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hilo-ms-1", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "HiLo MS #1 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "HiLo MS #1 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Houghto-Safe 1010 phosphate ester\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Houghto-Safe 1010 phosphate ester | 4 | 1 | 4 | 4 | 3 | 1 | 4 | 4 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Houghto-Safe 1010 phosphate ester", "epdm": "1", "file": "houghto-safe-1010-phosphate-ester.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "houghto-safe-1010-phosphate-ester", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Houghto-Safe 1010 phosphate ester | 4 | 1 | 4 | 4 | 3 | 1 | 4 | 4 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Houghto-Safe 1010 phosphate ester \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Houghto-Safe 1055 phosphate ester\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Houghto-Safe 1055 phosphate ester | 4 | 1 | 4 | 4 | 3 | 1 | 4 | 4 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Houghto-Safe 1055 phosphate ester", "epdm": "1", "file": "houghto-safe-1055-phosphate-ester.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "houghto-safe-1055-phosphate-ester", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Houghto-Safe 1055 phosphate ester | 4 | 1 | 4 | 4 | 3 | 1 | 4 | 4 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Houghto-Safe 1055 phosphate ester \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Houghto-Safe 1120 phosphate ester\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Houghto-Safe 1120 phosphate ester | 4 | 2 | 4 | 4 | 3 | 1 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Houghto-Safe 1120 phosphate ester", "epdm": "2", "file": "houghto-safe-1120-phosphate-ester.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "houghto-safe-1120-phosphate-ester", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Houghto-Safe 1120 phosphate ester | 4 | 2 | 4 | 4 | 3 | 1 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Houghto-Safe 1120 phosphate ester \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Houghto-Safe 271 (Water & Glycol Base)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Houghto-Safe 271 (Water & Glycol Base) | 1 | 1 | 2 | 1 | 2 | 2 | 4 | X | 2 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Houghto-Safe 271 (Water & Glycol Base)", "epdm": "1", "file": "houghto-safe-271-water-glycol-base.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "houghto-safe-271-water-glycol-base", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Houghto-Safe 271 (Water & Glycol Base) | 1 | 1 | 2 | 1 | 2 | 2 | 4 | X | 2 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Houghto-Safe 271 (Water & Glycol Base) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Houghto-Safe 416 & 500 Series\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Houghto-Safe 416 & 500 Series | 1 | 1 | X | X | X | X | X | X | X | X | X | X | X |\n\nSource: \n", "butyl": "X", "chemical": "Houghto-Safe 416 & 500 Series", "epdm": "1", "file": "houghto-safe-416-500-series.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "houghto-safe-416-500-series", "kalrez": "X", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Houghto-Safe 416 & 500 Series | 1 | 1 | X | X | X | X | X | X | X | X | X | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Houghto-Safe 416 & 500 Series \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Houghto-Safe 5040 (Water/Oil emulsion)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Houghto-Safe 5040 (Water/Oil emulsion) | 1 | 4 | 2 | 4 | 3 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Houghto-Safe 5040 (Water/Oil emulsion)", "epdm": "4", "file": "houghto-safe-5040-water-oil-emulsion.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "houghto-safe-5040-water-oil-emulsion", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Houghto-Safe 5040 (Water/Oil emulsion) | 1 | 4 | 2 | 4 | 3 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Houghto-Safe 5040 (Water/Oil emulsion) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Houghto-Safe 620 Water/Glycol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Houghto-Safe 620 Water/Glycol | 1 | 1 | 2 | 1 | 2 | 2 | 4 | X | 2 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Houghto-Safe 620 Water/Glycol", "epdm": "1", "file": "houghto-safe-620-water-glycol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "houghto-safe-620-water-glycol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Houghto-Safe 620 Water/Glycol | 1 | 1 | 2 | 1 | 2 | 2 | 4 | X | 2 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Houghto-Safe 620 Water/Glycol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydraulic Oil (Petroleum Base, Industrial)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydraulic Oil (Petroleum Base, Industrial) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hydraulic Oil (Petroleum Base, Industrial)", "epdm": "4", "file": "hydraulic-oil-petroleum-base-industrial.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "hydraulic-oil-petroleum-base-industrial", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Hydraulic Oil (Petroleum Base, Industrial) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydraulic Oil (Petroleum Base, Industrial) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydraulic Oils (Synthetic Base)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydraulic Oils (Synthetic Base) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hydraulic Oils (Synthetic Base)", "epdm": "4", "file": "hydraulic-oils-synthetic-base.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hydraulic-oils-synthetic-base", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hydraulic Oils (Synthetic Base) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydraulic Oils (Synthetic Base) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrazine (Anhydrous)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrazine (Anhydrous) | 4 | 2 | 2 | 1 | X | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Hydrazine (Anhydrous)", "epdm": "2", "file": "hydrazine-anhydrous.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "hydrazine-anhydrous", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Hydrazine (Anhydrous) | 4 | 2 | 2 | 1 | X | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrazine (Anhydrous) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrazine Dihydrochloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrazine Dihydrochloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrazine Dihydrochloride", "epdm": "1", "file": "hydrazine-dihydrochloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hydrazine-dihydrochloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Hydrazine Dihydrochloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrazine Dihydrochloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrazine Hydrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrazine Hydrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrazine Hydrate", "epdm": "1", "file": "hydrazine-hydrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hydrazine-hydrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Hydrazine Hydrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrazine Hydrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrazine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrazine | 2 | 1 | 2 | 2 | 2 | 1 | X | 2 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrazine", "epdm": "1", "file": "hydrazine.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "hydrazine", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Hydrazine | 2 | 1 | 2 | 2 | 2 | 1 | X | 2 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrazine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydriodic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydriodic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hydriodic Acid", "epdm": "4", "file": "hydriodic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hydriodic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hydriodic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydriodic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydro-Drive MIH-10 (Petroleum Base)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydro-Drive MIH-10 (Petroleum Base) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hydro-Drive MIH-10 (Petroleum Base)", "epdm": "4", "file": "hydro-drive-mih-10-petroleum-base.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hydro-drive-mih-10-petroleum-base", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Hydro-Drive MIH-10 (Petroleum Base) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydro-Drive MIH-10 (Petroleum Base) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydro-Drive MIH-50 (Petroleum Base)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydro-Drive MIH-50 (Petroleum Base) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hydro-Drive MIH-50 (Petroleum Base)", "epdm": "4", "file": "hydro-drive-mih-50-petroleum-base.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hydro-drive-mih-50-petroleum-base", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Hydro-Drive MIH-50 (Petroleum Base) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydro-Drive MIH-50 (Petroleum Base) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydroabietyl Alcohol\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydroabietyl Alcohol | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydroabietyl Alcohol", "epdm": "X", "file": "hydroabietyl-alcohol.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydroabietyl-alcohol", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydroabietyl Alcohol | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydroabietyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrobromic Acid 40%\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrobromic Acid 40% | 4 | 1 | 2 | 4 | 4 | 1 | 4 | 1 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrobromic Acid 40%", "epdm": "1", "file": "hydrobromic-acid-40.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hydrobromic-acid-40", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Hydrobromic Acid 40% | 4 | 1 | 2 | 4 | 4 | 1 | 4 | 1 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrobromic Acid 40% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrobromic Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrobromic Acid | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrobromic Acid", "epdm": "1", "file": "hydrobromic-acid.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hydrobromic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Hydrobromic Acid | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrobromic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrocarbons, Saturated\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrocarbons, Saturated | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hydrocarbons, Saturated", "epdm": "4", "file": "hydrocarbons-saturated.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "hydrocarbons-saturated", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Hydrocarbons, Saturated | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrocarbons, Saturated \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrochloric Acid, 3 Molar to 158\u00b0F\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 3\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrochloric Acid, 3 Molar to 158\u00b0F | 2 | 1 | 2 | 3 | 4 | 1 | 3 | 1 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrochloric Acid, 3 Molar to 158\u00b0F", "epdm": "1", "file": "hydrochloric-acid-3-molar-to-158-f.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hydrochloric-acid-3-molar-to-158-f", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "3", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "4", "source_quote": "Hydrochloric Acid, 3 Molar to 158\u00b0F | 2 | 1 | 2 | 3 | 4 | 1 | 3 | 1 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrochloric Acid, 3 Molar to 158\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrochloric Acid (cold) 37%\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrochloric Acid (cold) 37% | 4 | 3 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrochloric Acid (cold) 37%", "epdm": "3", "file": "hydrochloric-acid-cold-37.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrochloric-acid-cold-37", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrochloric Acid (cold) 37% | 4 | 3 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrochloric Acid (cold) 37% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrochloric Acid, Concentrated Room Temp.\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrochloric Acid, Concentrated Room Temp. | 2 | 2 | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrochloric Acid, Concentrated Room Temp.", "epdm": "2", "file": "hydrochloric-acid-concentrated-room-temp.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrochloric-acid-concentrated-room-temp", "kalrez": "1", "neoprene": "X", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrochloric Acid, Concentrated Room Temp. | 2 | 2 | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrochloric Acid, Concentrated Room Temp. \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrochloric Acid, Concentrated to 158\u00b0F\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrochloric Acid, Concentrated to 158\u00b0F | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hydrochloric Acid, Concentrated to 158\u00b0F", "epdm": "4", "file": "hydrochloric-acid-concentrated-to-158-f.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrochloric-acid-concentrated-to-158-f", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Hydrochloric Acid, Concentrated to 158\u00b0F | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrochloric Acid, Concentrated to 158\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrochloric Acid (hot) 37%\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrochloric Acid (hot) 37% | 4 | 3 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hydrochloric Acid (hot) 37%", "epdm": "3", "file": "hydrochloric-acid-hot-37.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hydrochloric-acid-hot-37", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hydrochloric Acid (hot) 37% | 4 | 3 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrochloric Acid (hot) 37% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrocyanic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrocyanic Acid | 2 | 1 | 2 | 2 | 3 | 1 | 4 | 1 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrocyanic Acid", "epdm": "1", "file": "hydrocyanic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hydrocyanic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "3", "source_quote": "Hydrocyanic Acid | 2 | 1 | 2 | 2 | 3 | 1 | 4 | 1 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrocyanic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrofluoric Acid (Anhydrous)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrofluoric Acid (Anhydrous) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrofluoric Acid (Anhydrous)", "epdm": "X", "file": "hydrofluoric-acid-anhydrous.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrofluoric-acid-anhydrous", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrofluoric Acid (Anhydrous) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrofluoric Acid (Anhydrous) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrofluoric Acid (conc.) Cold\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrofluoric Acid (conc.) Cold | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrofluoric Acid (conc.) Cold", "epdm": "X", "file": "hydrofluoric-acid-conc-cold.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrofluoric-acid-conc-cold", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrofluoric Acid (conc.) Cold | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrofluoric Acid (conc.) Cold \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrofluoric Acid (conc.) Hot\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrofluoric Acid (conc.) Hot | 4 | 4 | X | X | X | X | X | X | 3 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrofluoric Acid (conc.) Hot", "epdm": "4", "file": "hydrofluoric-acid-conc-hot.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrofluoric-acid-conc-hot", "kalrez": "1", "neoprene": "X", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrofluoric Acid (conc.) Hot | 4 | 4 | X | X | X | X | X | X | 3 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrofluoric Acid (conc.) Hot \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrofluorosilicic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrofluorosilicic Acid | 2 | 1 | 2 | 2 | 4 | 1 | X | 1 | 1 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrofluorosilicic Acid", "epdm": "1", "file": "hydrofluorosilicic-acid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hydrofluorosilicic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Hydrofluorosilicic Acid | 2 | 1 | 2 | 2 | 4 | 1 | X | 1 | 1 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrofluorosilicic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Bromide (Anhydrous)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Bromide (Anhydrous) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrogen Bromide (Anhydrous)", "epdm": "X", "file": "hydrogen-bromide-anhydrous.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrogen-bromide-anhydrous", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrogen Bromide (Anhydrous) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Bromide (Anhydrous) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Chloride (Anhydrous)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Chloride (Anhydrous) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrogen Chloride (Anhydrous)", "epdm": "X", "file": "hydrogen-chloride-anhydrous.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrogen-chloride-anhydrous", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrogen Chloride (Anhydrous) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Chloride (Anhydrous) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Chloride gas\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Chloride gas | 4 | 1 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrogen Chloride gas", "epdm": "1", "file": "hydrogen-chloride-gas.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrogen-chloride-gas", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrogen Chloride gas | 4 | 1 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Chloride gas \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Cyanide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Cyanide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrogen Cyanide", "epdm": "X", "file": "hydrogen-cyanide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrogen-cyanide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrogen Cyanide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Fluoride (Anhydrous)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Fluoride (Anhydrous) | 4 | 1 | X | 4 | X | 1 | 4 | X | 4 | X | 4 | 2 | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrogen Fluoride (Anhydrous)", "epdm": "1", "file": "hydrogen-fluoride-anhydrous.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrogen-fluoride-anhydrous", "kalrez": "1", "neoprene": "X", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hydrogen Fluoride (Anhydrous) | 4 | 1 | X | 4 | X | 1 | 4 | X | 4 | X | 4 | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Fluoride (Anhydrous) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Fluoride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Fluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrogen Fluoride", "epdm": "X", "file": "hydrogen-fluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrogen-fluoride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrogen Fluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Gas, Cold\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Gas, Cold | 1 | 1 | 1 | 2 | 3 | 1 | 2 | 1 | 1 | 1 | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrogen Gas, Cold", "epdm": "1", "file": "hydrogen-gas-cold.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hydrogen-gas-cold", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "3", "source_quote": "Hydrogen Gas, Cold | 1 | 1 | 1 | 2 | 3 | 1 | 2 | 1 | 1 | 1 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Gas, Cold \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Gas, Hot\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Gas, Hot | 1 | 1 | 1 | 2 | 3 | 1 | 2 | 1 | 1 | 1 | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrogen Gas, Hot", "epdm": "1", "file": "hydrogen-gas-hot.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hydrogen-gas-hot", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "3", "source_quote": "Hydrogen Gas, Hot | 1 | 1 | 1 | 2 | 3 | 1 | 2 | 1 | 1 | 1 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Gas, Hot \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Iodide (Anhydrous)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Iodide (Anhydrous) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrogen Iodide (Anhydrous)", "epdm": "X", "file": "hydrogen-iodide-anhydrous.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrogen-iodide-anhydrous", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrogen Iodide (Anhydrous) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Iodide (Anhydrous) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Peroxide 90%\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Peroxide 90% | 4 | 3 | 4 | 4 | 2 | 3 | 4 | 3 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Hydrogen Peroxide 90%", "epdm": "3", "file": "hydrogen-peroxide-90.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "hydrogen-peroxide-90", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Hydrogen Peroxide 90% | 4 | 3 | 4 | 4 | 2 | 3 | 4 | 3 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Peroxide 90% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Peroxide\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Peroxide | 2 | 1 | 1 | 2 | 1 | 1 | 4 | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrogen Peroxide", "epdm": "1", "file": "hydrogen-peroxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "hydrogen-peroxide", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Hydrogen Peroxide | 2 | 1 | 1 | 2 | 1 | 1 | 4 | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Peroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Selenide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Selenide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hydrogen Selenide", "epdm": "X", "file": "hydrogen-selenide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrogen-selenide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydrogen Selenide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Selenide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Sulfide, Dry, Cold\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Sulfide, Dry, Cold | 1 | 1 | 1 | 1 | 3 | 1 | 4 | 1 | 4 | X | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrogen Sulfide, Dry, Cold", "epdm": "1", "file": "hydrogen-sulfide-dry-cold.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hydrogen-sulfide-dry-cold", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Hydrogen Sulfide, Dry, Cold | 1 | 1 | 1 | 1 | 3 | 1 | 4 | 1 | 4 | X | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Sulfide, Dry, Cold \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Sulfide, Dry, Hot\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Sulfide, Dry, Hot | 4 | 1 | 2 | 4 | 3 | 1 | 4 | 3 | 4 | X | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrogen Sulfide, Dry, Hot", "epdm": "1", "file": "hydrogen-sulfide-dry-hot.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "hydrogen-sulfide-dry-hot", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Hydrogen Sulfide, Dry, Hot | 4 | 1 | 2 | 4 | 3 | 1 | 4 | 3 | 4 | X | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Sulfide, Dry, Hot \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Sulfide, Wet, Cold\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Sulfide, Wet, Cold | 4 | 1 | 1 | 4 | 3 | 1 | 4 | 2 | 4 | X | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrogen Sulfide, Wet, Cold", "epdm": "1", "file": "hydrogen-sulfide-wet-cold.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "hydrogen-sulfide-wet-cold", "kalrez": "1", "neoprene": "1", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Hydrogen Sulfide, Wet, Cold | 4 | 1 | 1 | 4 | 3 | 1 | 4 | 2 | 4 | X | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Sulfide, Wet, Cold \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrogen Sulfide, Wet, Hot\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrogen Sulfide, Wet, Hot | 4 | 1 | 2 | 4 | 3 | 1 | 4 | 3 | 4 | X | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydrogen Sulfide, Wet, Hot", "epdm": "1", "file": "hydrogen-sulfide-wet-hot.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "hydrogen-sulfide-wet-hot", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Hydrogen Sulfide, Wet, Hot | 4 | 1 | 2 | 4 | 3 | 1 | 4 | 3 | 4 | X | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrogen Sulfide, Wet, Hot \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrolube-Water/Ethylene Glycol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrolube-Water/Ethylene Glycol | 1 | 1 | 2 | 1 | 2 | 2 | 4 | X | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Hydrolube-Water/Ethylene Glycol", "epdm": "1", "file": "hydrolube-water-ethylene-glycol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydrolube-water-ethylene-glycol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Hydrolube-Water/Ethylene Glycol | 1 | 1 | 2 | 1 | 2 | 2 | 4 | X | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrolube-Water/Ethylene Glycol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydrooxycitronellal\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydrooxycitronellal | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hydrooxycitronellal", "epdm": "X", "file": "hydrooxycitronellal.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hydrooxycitronellal", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hydrooxycitronellal | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydrooxycitronellal \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydroquinol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydroquinol | 4 | 4 | 4 | X | X | X | X | X | 1 | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Hydroquinol", "epdm": "4", "file": "hydroquinol.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydroquinol", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hydroquinol | 4 | 4 | 4 | X | X | X | X | X | 1 | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydroquinol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydroquinone\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydroquinone | 3 | 2 | 4 | 4 | X | 4 | 4 | 4 | 2 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Hydroquinone", "epdm": "2", "file": "hydroquinone.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hydroquinone", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hydroquinone | 3 | 2 | 4 | 4 | X | 4 | 4 | 4 | 2 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydroquinone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydroxyacetic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydroxyacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Hydroxyacetic Acid", "epdm": "1", "file": "hydroxyacetic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hydroxyacetic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Hydroxyacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydroxyacetic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hydyne\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hydyne | 2 | 1 | 2 | 2 | 4 | 2 | 4 | X | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Hydyne", "epdm": "1", "file": "hydyne.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hydyne", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Hydyne | 2 | 1 | 2 | 2 | 4 | 2 | 4 | X | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hydyne \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hyjet IV and IVA\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hyjet IV and IVA | 4 | 1 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Hyjet IV and IVA", "epdm": "1", "file": "hyjet-iv-and-iva.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "hyjet-iv-and-iva", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Hyjet IV and IVA | 4 | 1 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hyjet IV and IVA \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hyjet S4\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hyjet S4 | 4 | 1 | 4 | X | X | X | X | X | 4 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hyjet S4", "epdm": "1", "file": "hyjet-s4.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hyjet-s4", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hyjet S4 | 4 | 1 | 4 | X | X | X | X | X | 4 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hyjet S4 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hyjet W\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hyjet W | 4 | 1 | 4 | X | X | X | X | X | 4 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hyjet W", "epdm": "1", "file": "hyjet-w.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hyjet-w", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hyjet W | 4 | 1 | 4 | X | X | X | X | X | 4 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hyjet W \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hyjet\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hyjet | 4 | 1 | 4 | X | X | X | X | X | 4 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Hyjet", "epdm": "1", "file": "hyjet.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "hyjet", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Hyjet | 4 | 1 | 4 | X | X | X | X | X | 4 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hyjet \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Hypochlorous Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Hypochlorous Acid | 4 | 2 | 4 | 4 | X | 2 | 4 | 1 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Hypochlorous Acid", "epdm": "2", "file": "hypochlorous-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "hypochlorous-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Hypochlorous Acid | 4 | 2 | 4 | 4 | X | 2 | 4 | 1 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Hypochlorous Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Indole\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Indole | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Indole", "epdm": "X", "file": "indole.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "indole", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Indole | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Indole \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Industron FF44\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Industron FF44 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Industron FF44", "epdm": "4", "file": "industron-ff44.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "industron-ff44", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Industron FF44 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Industron FF44 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Industron FF48\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Industron FF48 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Industron FF48", "epdm": "4", "file": "industron-ff48.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "industron-ff48", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Industron FF48 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Industron FF48 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Industron FF53\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Industron FF53 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Industron FF53", "epdm": "4", "file": "industron-ff53.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "industron-ff53", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Industron FF53 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Industron FF53 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Industron FF80\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Industron FF80 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Industron FF80", "epdm": "4", "file": "industron-ff80.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "industron-ff80", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Industron FF80 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Industron FF80 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Insulin\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Insulin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Insulin", "epdm": "1", "file": "insulin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "insulin", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Insulin | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Insulin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Iodic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Iodic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Iodic Acid", "epdm": "1", "file": "iodic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "iodic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Iodic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Iodic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Iodine Pentafluoride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Iodine Pentafluoride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Iodine Pentafluoride", "epdm": "4", "file": "iodine-pentafluoride.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "iodine-pentafluoride", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Iodine Pentafluoride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Iodine Pentafluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Iodine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Iodine | 2 | 2 | 4 | 2 | X | 2 | X | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Iodine", "epdm": "2", "file": "iodine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "iodine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Iodine | 2 | 2 | 4 | 2 | X | 2 | X | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Iodine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Iodoform\n\n**Nitrile (NBR):** X\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Iodoform | X | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Iodoform", "epdm": "4", "file": "iodoform.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "iodoform", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Iodoform | X | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Iodoform \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isoamyl Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isoamyl Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isoamyl Acetate", "epdm": "1", "file": "isoamyl-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isoamyl-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Isoamyl Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isoamyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isoamyl Butyrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isoamyl Butyrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isoamyl Butyrate", "epdm": "1", "file": "isoamyl-butyrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isoamyl-butyrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Isoamyl Butyrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isoamyl Butyrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isoamyl Valerate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isoamyl Valerate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isoamyl Valerate", "epdm": "1", "file": "isoamyl-valerate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isoamyl-valerate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Isoamyl Valerate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isoamyl Valerate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isoboreol\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isoboreol | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Isoboreol", "epdm": "X", "file": "isoboreol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "isoboreol", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Isoboreol | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isoboreol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isobutane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isobutane | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Isobutane", "epdm": "4", "file": "isobutane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "isobutane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Isobutane | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isobutane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isobutyl Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isobutyl Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isobutyl Acetate", "epdm": "1", "file": "isobutyl-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isobutyl-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Isobutyl Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isobutyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isobutyl Alcohol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isobutyl Alcohol | 2 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isobutyl Alcohol", "epdm": "1", "file": "isobutyl-alcohol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isobutyl-alcohol", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Isobutyl Alcohol | 2 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isobutyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isobutyl Chloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isobutyl Chloride | 4 | 4 | 4 | X | X | X | X | X | 1 | X | X | 4 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Isobutyl Chloride", "epdm": "4", "file": "isobutyl-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "isobutyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Isobutyl Chloride | 4 | 4 | 4 | X | X | X | X | X | 1 | X | X | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isobutyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isobutyl Ether\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isobutyl Ether | 2 | 4 | 3 | X | X | X | X | X | 4 | X | X | 4 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Isobutyl Ether", "epdm": "4", "file": "isobutyl-ether.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "isobutyl-ether", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Isobutyl Ether | 2 | 4 | 3 | X | X | X | X | X | 4 | X | X | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isobutyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isobutyl Methyl Ketone\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isobutyl Methyl Ketone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isobutyl Methyl Ketone", "epdm": "1", "file": "isobutyl-methyl-ketone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isobutyl-methyl-ketone", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Isobutyl Methyl Ketone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isobutyl Methyl Ketone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isobutyl n-Butyrate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isobutyl n-Butyrate | 4 | 1 | 4 | 4 | X | 1 | 4 | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isobutyl n-Butyrate", "epdm": "1", "file": "isobutyl-n-butyrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "isobutyl-n-butyrate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Isobutyl n-Butyrate | 4 | 1 | 4 | 4 | X | 1 | 4 | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isobutyl n-Butyrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isobutyl Phosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isobutyl Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isobutyl Phosphate", "epdm": "1", "file": "isobutyl-phosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isobutyl-phosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Isobutyl Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isobutyl Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isobutylene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isobutylene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Isobutylene", "epdm": "X", "file": "isobutylene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "isobutylene", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Isobutylene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isobutylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isobutyraldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 3\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isobutyraldehyde | 3 | 2 | 3 | X | X | X | X | X | 4 | X | X | 4 | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Isobutyraldehyde", "epdm": "2", "file": "isobutyraldehyde.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "isobutyraldehyde", "kalrez": "2", "neoprene": "3", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Isobutyraldehyde | 3 | 2 | 3 | X | X | X | X | X | 4 | X | X | 4 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isobutyraldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isobutyric Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isobutyric Acid | 1 | 2 | 4 | X | 2 | X | X | X | 4 | X | X | 3 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Isobutyric Acid", "epdm": "2", "file": "isobutyric-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "isobutyric-acid", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "2", "source_quote": "Isobutyric Acid | 1 | 2 | 4 | X | 2 | X | X | X | 4 | X | X | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isobutyric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isocrotyl Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isocrotyl Chloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Isocrotyl Chloride", "epdm": "X", "file": "isocrotyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "isocrotyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Isocrotyl Chloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isocrotyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isodecanol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isodecanol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Isodecanol", "epdm": "4", "file": "isodecanol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "isodecanol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Isodecanol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isodecanol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isododecane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isododecane | 1 | 4 | 2 | 4 | 4 | 4 | 4 | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Isododecane", "epdm": "4", "file": "isododecane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "isododecane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Isododecane | 1 | 4 | 2 | 4 | 4 | 4 | 4 | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isododecane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isoeugenol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isoeugenol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Isoeugenol", "epdm": "4", "file": "isoeugenol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "isoeugenol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Isoeugenol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isoeugenol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isooctane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isooctane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 1 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Isooctane", "epdm": "4", "file": "isooctane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isooctane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Isooctane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 1 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isooctane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isopentane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isopentane | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Isopentane", "epdm": "4", "file": "isopentane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "isopentane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Isopentane | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isopentane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isophorone (Ketone)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isophorone (Ketone) | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Isophorone (Ketone)", "epdm": "2", "file": "isophorone-ketone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "isophorone-ketone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Isophorone (Ketone) | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isophorone (Ketone) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isopropanol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isopropanol | 2 | 1 | 2 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isopropanol", "epdm": "1", "file": "isopropanol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isopropanol", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Isopropanol | 2 | 1 | 2 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isopropanol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isopropyl Acetate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isopropyl Acetate | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Isopropyl Acetate", "epdm": "2", "file": "isopropyl-acetate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "isopropyl-acetate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Isopropyl Acetate | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isopropyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isopropyl Alcohol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isopropyl Alcohol | 2 | 1 | 2 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isopropyl Alcohol", "epdm": "1", "file": "isopropyl-alcohol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isopropyl-alcohol", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Isopropyl Alcohol | 2 | 1 | 2 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isopropyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isopropyl Chloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isopropyl Chloride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Isopropyl Chloride", "epdm": "4", "file": "isopropyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "isopropyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Isopropyl Chloride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isopropyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isopropyl Ether\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isopropyl Ether | 2 | 4 | 3 | 4 | 4 | 4 | 3 | 3 | 4 | 2 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Isopropyl Ether", "epdm": "4", "file": "isopropyl-ether.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "isopropyl-ether", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "3", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Isopropyl Ether | 2 | 4 | 3 | 4 | 4 | 4 | 3 | 3 | 4 | 2 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isopropyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isopropylacetone\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isopropylacetone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isopropylacetone", "epdm": "1", "file": "isopropylacetone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isopropylacetone", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Isopropylacetone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isopropylacetone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Isopropylamine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Isopropylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Isopropylamine", "epdm": "1", "file": "isopropylamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "isopropylamine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Isopropylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Isopropylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Jet Fuel A\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Jet Fuel A | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Jet Fuel A", "epdm": "4", "file": "jet-fuel-a.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "jet-fuel-a", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Jet Fuel A | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Jet Fuel A \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** JP-10\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> JP-10 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 3 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "JP-10", "epdm": "4", "file": "jp-10.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "jp-10", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "JP-10 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 3 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "JP-10 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** JP-3 (MIL-J-5624)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> JP-3 (MIL-J-5624) | 1 | 4 | 4 | X | X | X | X | X | 1 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "JP-3 (MIL-J-5624)", "epdm": "4", "file": "jp-3-mil-j-5624.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "jp-3-mil-j-5624", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "JP-3 (MIL-J-5624) | 1 | 4 | 4 | X | X | X | X | X | 1 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "JP-3 (MIL-J-5624) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** JP-4 (MIL-T-5624)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> JP-4 (MIL-T-5624) | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "JP-4 (MIL-T-5624)", "epdm": "4", "file": "jp-4-mil-t-5624.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "jp-4-mil-t-5624", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "JP-4 (MIL-T-5624) | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "JP-4 (MIL-T-5624) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** JP-5 (MIL-T-5624)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> JP-5 (MIL-T-5624) | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "JP-5 (MIL-T-5624)", "epdm": "4", "file": "jp-5-mil-t-5624.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "jp-5-mil-t-5624", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "JP-5 (MIL-T-5624) | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "JP-5 (MIL-T-5624) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** JP-6 (MIL-J-25656)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> JP-6 (MIL-J-25656) | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "JP-6 (MIL-J-25656)", "epdm": "4", "file": "jp-6-mil-j-25656.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "jp-6-mil-j-25656", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "JP-6 (MIL-J-25656) | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "JP-6 (MIL-J-25656) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** JP-8 (MIL-T-83133)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> JP-8 (MIL-T-83133) | 1 | 4 | 3 | 4 | 4 | 4 | 1 | X | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "JP-8 (MIL-T-83133)", "epdm": "4", "file": "jp-8-mil-t-83133.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "jp-8-mil-t-83133", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "JP-8 (MIL-T-83133) | 1 | 4 | 3 | 4 | 4 | 4 | 1 | X | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "JP-8 (MIL-T-83133) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** JP-9 -11\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> JP-9 -11 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "JP-9 -11", "epdm": "4", "file": "jp-9-11.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "jp-9-11", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "JP-9 -11 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "JP-9 -11 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** JP-9 (MIL-F-81912)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> JP-9 (MIL-F-81912) | 3 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "JP-9 (MIL-F-81912)", "epdm": "4", "file": "jp-9-mil-f-81912.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "jp-9-mil-f-81912", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "JP-9 (MIL-F-81912) | 3 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "JP-9 (MIL-F-81912) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** JPX (MIL-F-25604)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> JPX (MIL-F-25604) | 1 | 4 | 2 | X | X | X | X | X | 4 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "JPX (MIL-F-25604)", "epdm": "4", "file": "jpx-mil-f-25604.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "jpx-mil-f-25604", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "JPX (MIL-F-25604) | 1 | 4 | 2 | X | X | X | X | X | 4 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "JPX (MIL-F-25604) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Kel F Liquids\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Kel F Liquids | 1 | 1 | X | 1 | 1 | 1 | X | 1 | 2 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Kel F Liquids", "epdm": "1", "file": "kel-f-liquids.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "kel-f-liquids", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Kel F Liquids | 1 | 1 | X | 1 | 1 | 1 | X | 1 | 2 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Kel F Liquids \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Kerosene (Similar to RP-1 and JP-1)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Kerosene (Similar to RP-1 and JP-1) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Kerosene (Similar to RP-1 and JP-1)", "epdm": "4", "file": "kerosene-similar-to-rp-1-and-jp-1.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "kerosene-similar-to-rp-1-and-jp-1", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Kerosene (Similar to RP-1 and JP-1) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Kerosene (Similar to RP-1 and JP-1) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Keystone #87HX-Grease\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Keystone #87HX-Grease | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Keystone #87HX-Grease", "epdm": "4", "file": "keystone-87hx-grease.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "keystone-87hx-grease", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Keystone #87HX-Grease | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Keystone #87HX-Grease \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lacquer Solvents\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lacquer Solvents | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Lacquer Solvents", "epdm": "4", "file": "lacquer-solvents.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "lacquer-solvents", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Lacquer Solvents | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lacquer Solvents \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lacquers\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lacquers | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Lacquers", "epdm": "4", "file": "lacquers.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "lacquers", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Lacquers | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lacquers \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lactams-Amino Acids\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lactams-Amino Acids | 4 | 2 | 2 | 4 | X | 2 | X | 2 | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Lactams-Amino Acids", "epdm": "2", "file": "lactams-amino-acids.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "lactams-amino-acids", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Lactams-Amino Acids | 4 | 2 | 2 | 4 | X | 2 | X | 2 | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lactams-Amino Acids \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lactic Acid, Cold\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lactic Acid, Cold | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lactic Acid, Cold", "epdm": "1", "file": "lactic-acid-cold.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lactic-acid-cold", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Lactic Acid, Cold | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lactic Acid, Cold \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lactic Acid, Hot\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lactic Acid, Hot | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 3 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Lactic Acid, Hot", "epdm": "4", "file": "lactic-acid-hot.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "lactic-acid-hot", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Lactic Acid, Hot | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 3 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lactic Acid, Hot \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lactones (Cyclic Esters)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lactones (Cyclic Esters) | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Lactones (Cyclic Esters)", "epdm": "2", "file": "lactones-cyclic-esters.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "lactones-cyclic-esters", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Lactones (Cyclic Esters) | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lactones (Cyclic Esters) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lard Animal Fat\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lard Animal Fat | 1 | 2 | 2 | 4 | 2 | 2 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Lard Animal Fat", "epdm": "2", "file": "lard-animal-fat.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "lard-animal-fat", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Lard Animal Fat | 1 | 2 | 2 | 4 | 2 | 2 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lard Animal Fat \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lauric Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lauric Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Lauric Acid", "epdm": "4", "file": "lauric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "lauric-acid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Lauric Acid | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lauric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lavender Oil\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lavender Oil | 2 | 4 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Lavender Oil", "epdm": "4", "file": "lavender-oil.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "lavender-oil", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Lavender Oil | 2 | 4 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lavender Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** LB 135\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> LB 135 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "LB 135", "epdm": "1", "file": "lb-135.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "lb-135", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "LB 135 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "LB 135 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Acetate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lead Acetate", "epdm": "1", "file": "lead-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "lead-acetate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Lead Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Arsenate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Arsenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lead Arsenate", "epdm": "1", "file": "lead-arsenate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lead-arsenate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lead Arsenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Arsenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Azide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Azide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Lead Azide", "epdm": "X", "file": "lead-azide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "lead-azide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Lead Azide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Azide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Bromide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Bromide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lead Bromide", "epdm": "1", "file": "lead-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lead-bromide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lead Bromide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Carbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lead Carbonate", "epdm": "1", "file": "lead-carbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lead-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lead Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lead Chloride", "epdm": "1", "file": "lead-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lead-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lead Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Chromate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Chromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lead Chromate", "epdm": "1", "file": "lead-chromate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lead-chromate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lead Chromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Chromate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Dioxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Dioxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lead Dioxide", "epdm": "1", "file": "lead-dioxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lead-dioxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lead Dioxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Dioxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Linoleate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Linoleate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lead Linoleate", "epdm": "1", "file": "lead-linoleate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lead-linoleate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lead Linoleate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Linoleate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead (Molten)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead (Molten) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Lead (Molten)", "epdm": "X", "file": "lead-molten.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "lead-molten", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Lead (Molten) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead (Molten) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Naphthenate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Lead Naphthenate", "epdm": "X", "file": "lead-naphthenate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "lead-naphthenate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Lead Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Naphthenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Nitrate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Nitrate | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 | X | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lead Nitrate", "epdm": "1", "file": "lead-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lead-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lead Nitrate | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 | X | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Oxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Oxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lead Oxide", "epdm": "1", "file": "lead-oxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lead-oxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lead Oxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lead Sulfamate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lead Sulfamate | 2 | 1 | 1 | 2 | 2 | 1 | 4 | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lead Sulfamate", "epdm": "1", "file": "lead-sulfamate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lead-sulfamate", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Lead Sulfamate | 2 | 1 | 1 | 2 | 2 | 1 | 4 | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-3"], "stale_after": "2028-08-11", "title": "Lead Sulfamate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lehigh X1169\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lehigh X1169 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Lehigh X1169", "epdm": "4", "file": "lehigh-x1169.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "lehigh-x1169", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Lehigh X1169 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lehigh X1169 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lehigh X1170\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lehigh X1170 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Lehigh X1170", "epdm": "4", "file": "lehigh-x1170.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "lehigh-x1170", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Lehigh X1170 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lehigh X1170 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Light Grease\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Light Grease | 1 | 4 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Light Grease", "epdm": "4", "file": "light-grease.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "light-grease", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Light Grease | 1 | 4 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Light Grease \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ligroin (Petroleum Ether or Benzene)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ligroin (Petroleum Ether or Benzene) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ligroin (Petroleum Ether or Benzene)", "epdm": "4", "file": "ligroin-petroleum-ether-or-benzene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "ligroin-petroleum-ether-or-benzene", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ligroin (Petroleum Ether or Benzene) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Ligroin (Petroleum Ether or Benzene) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lime Bleach\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lime Bleach | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Lime Bleach", "epdm": "1", "file": "lime-bleach.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "lime-bleach", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Lime Bleach | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lime Bleach \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lime Sulfur\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lime Sulfur | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Lime Sulfur", "epdm": "X", "file": "lime-sulfur.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "lime-sulfur", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Lime Sulfur | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lime Sulfur \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lindol, Hydraulic Fluid (Phosphate ester type)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lindol, Hydraulic Fluid (Phosphate ester type) | 4 | 1 | 4 | 4 | 3 | 1 | 4 | 4 | 2 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lindol, Hydraulic Fluid (Phosphate ester type)", "epdm": "1", "file": "lindol-hydraulic-fluid-phosphate-ester-type.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "lindol-hydraulic-fluid-phosphate-ester-type", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Lindol, Hydraulic Fluid (Phosphate ester type) | 4 | 1 | 4 | 4 | 3 | 1 | 4 | 4 | 2 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lindol, Hydraulic Fluid (Phosphate ester type) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Linoleic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Linoleic Acid | 2 | 4 | 2 | 4 | 2 | 4 | X | 2 | 2 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Linoleic Acid", "epdm": "4", "file": "linoleic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "linoleic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Linoleic Acid | 2 | 4 | 2 | 4 | 2 | 4 | X | 2 | 2 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Linoleic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Linseed Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Linseed Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Linseed Oil", "epdm": "3", "file": "linseed-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "linseed-oil", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Linseed Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Linseed Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Liquid Oxygen (LOX)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Liquid Oxygen (LOX) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Liquid Oxygen (LOX)", "epdm": "4", "file": "liquid-oxygen-lox.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "liquid-oxygen-lox", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Liquid Oxygen (LOX) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Liquid Oxygen (LOX) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Liquid Petroleum Gas (LPG)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Liquid Petroleum Gas (LPG) | 1 | 4 | 2 | 4 | 3 | 4 | 3 | 4 | 1 | 1 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Liquid Petroleum Gas (LPG)", "epdm": "4", "file": "liquid-petroleum-gas-lpg.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "liquid-petroleum-gas-lpg", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "3", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Liquid Petroleum Gas (LPG) | 1 | 4 | 2 | 4 | 3 | 4 | 3 | 4 | 1 | 1 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Liquid Petroleum Gas (LPG) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Liquimoly\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Liquimoly | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Liquimoly", "epdm": "4", "file": "liquimoly.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "liquimoly", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Liquimoly | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Liquimoly \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lithium Bromide (Brine)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lithium Bromide (Brine) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lithium Bromide (Brine)", "epdm": "1", "file": "lithium-bromide-brine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lithium-bromide-brine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lithium Bromide (Brine) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lithium Bromide (Brine) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lithium Carbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lithium Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lithium Carbonate", "epdm": "1", "file": "lithium-carbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lithium-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lithium Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lithium Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lithium Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lithium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lithium Chloride", "epdm": "1", "file": "lithium-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lithium-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lithium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lithium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lithium Citrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lithium Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lithium Citrate", "epdm": "1", "file": "lithium-citrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lithium-citrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lithium Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lithium Citrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lithium Hydroxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lithium Hydroxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lithium Hydroxide", "epdm": "1", "file": "lithium-hydroxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lithium-hydroxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lithium Hydroxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lithium Hydroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lithium Hypochlorite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lithium Hypochlorite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lithium Hypochlorite", "epdm": "1", "file": "lithium-hypochlorite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lithium-hypochlorite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lithium Hypochlorite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lithium Hypochlorite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lithium Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lithium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lithium Nitrate", "epdm": "1", "file": "lithium-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lithium-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lithium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lithium Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lithium Nitrite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lithium Nitrite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lithium Nitrite", "epdm": "1", "file": "lithium-nitrite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lithium-nitrite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lithium Nitrite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lithium Nitrite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lithium Perchlorate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lithium Perchlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lithium Perchlorate", "epdm": "1", "file": "lithium-perchlorate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lithium-perchlorate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lithium Perchlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lithium Perchlorate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lithium Salicylate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lithium Salicylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lithium Salicylate", "epdm": "1", "file": "lithium-salicylate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lithium-salicylate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lithium Salicylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lithium Salicylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lithopone\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lithopone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lithopone", "epdm": "1", "file": "lithopone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lithopone", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Lithopone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lithopone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lubricating Oils (Crude & Refined)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lubricating Oils (Crude & Refined) | 2 | 4 | 3 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Lubricating Oils (Crude & Refined)", "epdm": "4", "file": "lubricating-oils-crude-refined.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "lubricating-oils-crude-refined", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Lubricating Oils (Crude & Refined) | 2 | 4 | 3 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lubricating Oils (Crude & Refined) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lubricating Oils, Di-ester\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lubricating Oils, Di-ester | 2 | 4 | 3 | 4 | 4 | 4 | 2 | X | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Lubricating Oils, Di-ester", "epdm": "4", "file": "lubricating-oils-di-ester.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "lubricating-oils-di-ester", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "2", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Lubricating Oils, Di-ester | 2 | 4 | 3 | 4 | 4 | 4 | 2 | X | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lubricating Oils, Di-ester \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lubricating Oils, petroleum base\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lubricating Oils, petroleum base | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Lubricating Oils, petroleum base", "epdm": "4", "file": "lubricating-oils-petroleum-base.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "lubricating-oils-petroleum-base", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Lubricating Oils, petroleum base | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lubricating Oils, petroleum base \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lubricating Oils, SAE 10, 20, 30, 40, 50\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lubricating Oils, SAE 10, 20, 30, 40, 50 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Lubricating Oils, SAE 10, 20, 30, 40, 50", "epdm": "4", "file": "lubricating-oils-sae-10-20-30-40-50.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "lubricating-oils-sae-10-20-30-40-50", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Lubricating Oils, SAE 10, 20, 30, 40, 50 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lubricating Oils, SAE 10, 20, 30, 40, 50 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lubricating Oils (Synthetic base)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lubricating Oils (Synthetic base) | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Lubricating Oils (Synthetic base)", "epdm": "X", "file": "lubricating-oils-synthetic-base.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "lubricating-oils-synthetic-base", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Lubricating Oils (Synthetic base) | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lubricating Oils (Synthetic base) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Lye Solutions\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Lye Solutions | 2 | 1 | 2 | 2 | 2 | 1 | 4 | 1 | 2 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Lye Solutions", "epdm": "1", "file": "lye-solutions.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "lye-solutions", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Lye Solutions | 2 | 1 | 2 | 2 | 2 | 1 | 4 | 1 | 2 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Lye Solutions \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Magnesium Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Magnesium Chloride | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Magnesium Chloride", "epdm": "1", "file": "magnesium-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "magnesium-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Magnesium Chloride | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Magnesium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Magnesium Hydroxide\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Magnesium Hydroxide | 2 | 1 | 2 | 2 | X | 1 | 4 | 1 | 1 | 4 | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Magnesium Hydroxide", "epdm": "1", "file": "magnesium-hydroxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "magnesium-hydroxide", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Magnesium Hydroxide | 2 | 1 | 2 | 2 | X | 1 | 4 | 1 | 1 | 4 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Magnesium Hydroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Magnesium Salts\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Magnesium Salts | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Magnesium Salts", "epdm": "1", "file": "magnesium-salts.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "magnesium-salts", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Magnesium Salts | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Magnesium Salts \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Magnesium Sulfite and Sulfate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Magnesium Sulfite and Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Magnesium Sulfite and Sulfate", "epdm": "1", "file": "magnesium-sulfite-and-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "magnesium-sulfite-and-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Magnesium Sulfite and Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Magnesium Sulfite and Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Magnesium Trisilicate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Magnesium Trisilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Magnesium Trisilicate", "epdm": "X", "file": "magnesium-trisilicate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "magnesium-trisilicate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Magnesium Trisilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Magnesium Trisilicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Malathion\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** X\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Malathion | 2 | 4 | X | 4 | 4 | 4 | X | X | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Malathion", "epdm": "4", "file": "malathion.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "malathion", "kalrez": "1", "neoprene": "X", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Malathion | 2 | 4 | X | 4 | 4 | 4 | X | X | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Malathion \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Maleic Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Maleic Acid | 4 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Maleic Acid", "epdm": "4", "file": "maleic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "maleic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Maleic Acid | 4 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Maleic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Maleic Anhydride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Maleic Anhydride | 4 | 2 | 4 | 4 | X | 2 | 4 | 4 | 4 | X | X | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Maleic Anhydride", "epdm": "2", "file": "maleic-anhydride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "maleic-anhydride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Maleic Anhydride | 4 | 2 | 4 | 4 | X | 2 | 4 | 4 | 4 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Maleic Anhydride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Maleic Hydrazide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Maleic Hydrazide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Maleic Hydrazide", "epdm": "1", "file": "maleic-hydrazide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "maleic-hydrazide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Maleic Hydrazide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Maleic Hydrazide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Malic Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Malic Acid | 1 | 2 | 2 | 2 | 2 | 4 | 4 | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Malic Acid", "epdm": "2", "file": "malic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "malic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Malic Acid | 1 | 2 | 2 | 2 | 2 | 4 | 4 | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Malic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mandelic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mandelic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mandelic Acid", "epdm": "1", "file": "mandelic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mandelic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mandelic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mandelic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganese Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganese Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganese Acetate", "epdm": "1", "file": "manganese-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganese-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganese Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganese Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganese Carbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganese Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganese Carbonate", "epdm": "1", "file": "manganese-carbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganese-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganese Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganese Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganese Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganese Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganese Chloride", "epdm": "1", "file": "manganese-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganese-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganese Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganese Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganese Dioxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganese Dioxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganese Dioxide", "epdm": "1", "file": "manganese-dioxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganese-dioxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganese Dioxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganese Dioxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganese Gluconate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganese Gluconate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganese Gluconate", "epdm": "1", "file": "manganese-gluconate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganese-gluconate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganese Gluconate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganese Gluconate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganese Hypophosphite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganese Hypophosphite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganese Hypophosphite", "epdm": "1", "file": "manganese-hypophosphite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganese-hypophosphite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganese Hypophosphite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganese Hypophosphite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganese Linoleate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganese Linoleate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganese Linoleate", "epdm": "1", "file": "manganese-linoleate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganese-linoleate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganese Linoleate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganese Linoleate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganese Naphthenate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganese Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Manganese Naphthenate", "epdm": "X", "file": "manganese-naphthenate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "manganese-naphthenate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Manganese Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganese Naphthenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganese Phosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganese Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganese Phosphate", "epdm": "1", "file": "manganese-phosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganese-phosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganese Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganese Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganese Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganese Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganese Sulfate", "epdm": "1", "file": "manganese-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganese-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganese Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganese Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganous Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganous Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganous Chloride", "epdm": "1", "file": "manganous-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganous-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganous Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganous Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganous Phosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganous Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganous Phosphate", "epdm": "1", "file": "manganous-phosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganous-phosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganous Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganous Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Manganous Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Manganous Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Manganous Sulfate", "epdm": "1", "file": "manganous-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "manganous-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Manganous Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Manganous Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mannitol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mannitol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mannitol", "epdm": "1", "file": "mannitol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mannitol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mannitol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mannitol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MCS 312\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MCS 312 | 4 | 4 | 4 | 4 | 1 | 4 | 4 | X | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MCS 312", "epdm": "4", "file": "mcs-312.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mcs-312", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "MCS 312 | 4 | 4 | 4 | 4 | 1 | 4 | 4 | X | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MCS 312 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MCS 352\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MCS 352 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "MCS 352", "epdm": "1", "file": "mcs-352.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mcs-352", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "MCS 352 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MCS 352 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MCS 463\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MCS 463 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "MCS 463", "epdm": "1", "file": "mcs-463.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mcs-463", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "MCS 463 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MCS 463 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MDI (Methylene di-p-phenylene isocyanate)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MDI (Methylene di-p-phenylene isocyanate) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "MDI (Methylene di-p-phenylene isocyanate)", "epdm": "1", "file": "mdi-methylene-di-p-phenylene-isocyanate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mdi-methylene-di-p-phenylene-isocyanate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "MDI (Methylene di-p-phenylene isocyanate) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MDI (Methylene di-p-phenylene isocyanate) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercaptan\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercaptan | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Mercaptan", "epdm": "4", "file": "mercaptan.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mercaptan", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Mercaptan | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercaptan \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercaptobenzothiazole (MBT)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercaptobenzothiazole (MBT) | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Mercaptobenzothiazole (MBT)", "epdm": "X", "file": "mercaptobenzothiazole-mbt.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mercaptobenzothiazole-mbt", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Mercaptobenzothiazole (MBT) | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercaptobenzothiazole (MBT) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercuric Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercuric Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercuric Acetate", "epdm": "1", "file": "mercuric-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercuric-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mercuric Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercuric Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercuric Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercuric Chloride | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercuric Chloride", "epdm": "1", "file": "mercuric-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercuric-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Mercuric Chloride | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercuric Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercuric Cyanide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercuric Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercuric Cyanide", "epdm": "1", "file": "mercuric-cyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercuric-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mercuric Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercuric Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercuric Iodide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercuric Iodide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercuric Iodide", "epdm": "1", "file": "mercuric-iodide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercuric-iodide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mercuric Iodide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercuric Iodide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercuric Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercuric Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercuric Nitrate", "epdm": "1", "file": "mercuric-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercuric-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mercuric Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercuric Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercuric Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercuric Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercuric Sulfate", "epdm": "1", "file": "mercuric-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercuric-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mercuric Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercuric Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercuric Sulfite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercuric Sulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercuric Sulfite", "epdm": "1", "file": "mercuric-sulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercuric-sulfite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mercuric Sulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercuric Sulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercurous Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercurous Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercurous Nitrate", "epdm": "1", "file": "mercurous-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercurous-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mercurous Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercurous Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercury Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercury Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercury Chloride", "epdm": "1", "file": "mercury-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercury-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mercury Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercury Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercury Fulminate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercury Fulminate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercury Fulminate", "epdm": "1", "file": "mercury-fulminate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercury-fulminate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mercury Fulminate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercury Fulminate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercury Salts\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercury Salts | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercury Salts", "epdm": "1", "file": "mercury-salts.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercury-salts", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mercury Salts | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercury Salts \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercury Vapors\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercury Vapors | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercury Vapors", "epdm": "1", "file": "mercury-vapors.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercury-vapors", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Mercury Vapors | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercury Vapors \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mercury\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mercury | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mercury", "epdm": "1", "file": "mercury.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mercury", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Mercury | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mercury \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mesityl Oxide (Ketone)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mesityl Oxide (Ketone) | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Mesityl Oxide (Ketone)", "epdm": "2", "file": "mesityl-oxide-ketone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mesityl-oxide-ketone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Mesityl Oxide (Ketone) | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mesityl Oxide (Ketone) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Meta-Cresol\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Meta-Cresol | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Meta-Cresol", "epdm": "X", "file": "meta-cresol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "meta-cresol", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Meta-Cresol | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Meta-Cresol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Meta-Nitroaniline\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Meta-Nitroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Meta-Nitroaniline", "epdm": "1", "file": "meta-nitroaniline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "meta-nitroaniline", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Meta-Nitroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Meta-Nitroaniline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Meta-Toluidine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Meta-Toluidine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Meta-Toluidine", "epdm": "X", "file": "meta-toluidine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "meta-toluidine", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Meta-Toluidine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Meta-Toluidine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Metaldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Metaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Metaldehyde", "epdm": "1", "file": "metaldehyde.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "metaldehyde", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Metaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Metaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methacrylic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methacrylic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methacrylic Acid", "epdm": "1", "file": "methacrylic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methacrylic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methacrylic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methacrylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methallyl Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methallyl Chloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methallyl Chloride", "epdm": "X", "file": "methallyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methallyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methallyl Chloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methallyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 3 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methane", "epdm": "4", "file": "methane.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "methane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 3 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methanol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methanol | 4 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 4 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methanol", "epdm": "1", "file": "methanol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methanol", "kalrez": "1", "neoprene": "1", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Methanol | 4 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 4 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methanol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methoxychlor\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methoxychlor | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Methoxychlor", "epdm": "X", "file": "methoxychlor.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "methoxychlor", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Methoxychlor | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methoxychlor \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methoxyethanol (DGMMA)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methoxyethanol (DGMMA) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methoxyethanol (DGMMA)", "epdm": "1", "file": "methoxyethanol-dgmma.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methoxyethanol-dgmma", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methoxyethanol (DGMMA) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methoxyethanol (DGMMA) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl-2-Pyrrolidone or n-Methyl-2-Pyrrolidone\n\n**Nitrile (NBR):** X\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl-2-Pyrrolidone or n-Methyl-2-Pyrrolidone | X | 2 | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Methyl-2-Pyrrolidone or n-Methyl-2-Pyrrolidone", "epdm": "2", "file": "methyl-2-pyrrolidone-or-n-methyl-2-pyrrolidone.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "methyl-2-pyrrolidone-or-n-methyl-2-pyrrolidone", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Methyl-2-Pyrrolidone or n-Methyl-2-Pyrrolidone | X | 2 | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl-2-Pyrrolidone or n-Methyl-2-Pyrrolidone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Abietate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Abietate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Abietate", "epdm": "X", "file": "methyl-abietate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-abietate", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Abietate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Abietate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Acetate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Acetate | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Methyl Acetate", "epdm": "2", "file": "methyl-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-acetate", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Acetate | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Acetoacetate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Acetoacetate | 4 | 2 | 4 | X | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Methyl Acetoacetate", "epdm": "2", "file": "methyl-acetoacetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-acetoacetate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "2", "source_quote": "Methyl Acetoacetate | 4 | 2 | 4 | X | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Acetoacetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Acetophenone\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Acetophenone | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Acetophenone", "epdm": "X", "file": "methyl-acetophenone.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-acetophenone", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Acetophenone | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Acetophenone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Acrylate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Acrylate | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Methyl Acrylate", "epdm": "2", "file": "methyl-acrylate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-acrylate", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Acrylate | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Acrylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Alcohol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Alcohol | 4 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 4 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Alcohol", "epdm": "1", "file": "methyl-alcohol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methyl-alcohol", "kalrez": "1", "neoprene": "1", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Methyl Alcohol | 4 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 4 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Amylketone\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Amylketone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Amylketone", "epdm": "1", "file": "methyl-amylketone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methyl-amylketone", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methyl Amylketone | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Amylketone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Anthranilate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Anthranilate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Anthranilate", "epdm": "X", "file": "methyl-anthranilate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-anthranilate", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Anthranilate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Anthranilate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Benzoate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Benzoate | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Benzoate", "epdm": "4", "file": "methyl-benzoate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-benzoate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Benzoate | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Benzoate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Bromide\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Bromide | 2 | 4 | 4 | 4 | X | 4 | 3 | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Bromide", "epdm": "4", "file": "methyl-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-bromide", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "3", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Bromide | 2 | 4 | 4 | 4 | X | 4 | 3 | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Butyl Ketone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Butyl Ketone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Butyl Ketone", "epdm": "1", "file": "methyl-butyl-ketone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-butyl-ketone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Butyl Ketone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Butyl Ketone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Butyrate Cellosolve\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Butyrate Cellosolve | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Butyrate Cellosolve", "epdm": "1", "file": "methyl-butyrate-cellosolve.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methyl-butyrate-cellosolve", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methyl Butyrate Cellosolve | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Butyrate Cellosolve \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Butyrate Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Butyrate Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Butyrate Chloride", "epdm": "1", "file": "methyl-butyrate-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methyl-butyrate-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methyl Butyrate Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Butyrate Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Carbonate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Carbonate | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Carbonate", "epdm": "4", "file": "methyl-carbonate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-carbonate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Carbonate | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Cellosolve\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Cellosolve | 3 | 2 | 3 | 4 | 4 | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Methyl Cellosolve", "epdm": "2", "file": "methyl-cellosolve.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "methyl-cellosolve", "kalrez": "1", "neoprene": "3", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Cellosolve | 3 | 2 | 3 | 4 | 4 | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Cellosolve \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Cellulose\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Cellulose | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 4 | 2 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Methyl Cellulose", "epdm": "2", "file": "methyl-cellulose.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "methyl-cellulose", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Methyl Cellulose | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 4 | 2 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Cellulose \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Chloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Chloride | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Methyl Chloride", "epdm": "3", "file": "methyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Chloride | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Chloroacetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Chloroacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Chloroacetate", "epdm": "1", "file": "methyl-chloroacetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methyl-chloroacetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methyl Chloroacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Chloroacetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Chloroform\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Chloroform | 4 | 4 | 4 | X | X | X | X | X | 1 | X | X | 4 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Methyl Chloroform", "epdm": "4", "file": "methyl-chloroform.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "methyl-chloroform", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Methyl Chloroform | 4 | 4 | 4 | X | X | X | X | X | 1 | X | X | 4 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Chloroform \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Chloroformate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Chloroformate | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Chloroformate", "epdm": "4", "file": "methyl-chloroformate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-chloroformate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Chloroformate | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Chloroformate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Chlorosilanes\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Chlorosilanes | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Methyl Chlorosilanes", "epdm": "X", "file": "methyl-chlorosilanes.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "methyl-chlorosilanes", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Methyl Chlorosilanes | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Chlorosilanes \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Cyanide (Acetonitrile)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Cyanide (Acetonitrile) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Cyanide (Acetonitrile)", "epdm": "1", "file": "methyl-cyanide-acetonitrile.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methyl-cyanide-acetonitrile", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methyl Cyanide (Acetonitrile) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Cyanide (Acetonitrile) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Cyclohexanone\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Cyclohexanone | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Cyclohexanone", "epdm": "4", "file": "methyl-cyclohexanone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "methyl-cyclohexanone", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Methyl Cyclohexanone | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Cyclohexanone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Dichloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Dichloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Dichloride", "epdm": "X", "file": "methyl-dichloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-dichloride", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Dichloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Dichloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Ether\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Ether | 1 | 4 | 3 | 4 | 1 | 4 | 4 | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Ether", "epdm": "4", "file": "methyl-ether.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-ether", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Methyl Ether | 1 | 4 | 3 | 4 | 1 | 4 | 4 | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Ethyl Ketone (MEK)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Ethyl Ketone (MEK) | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Ethyl Ketone (MEK)", "epdm": "1", "file": "methyl-ethyl-ketone-mek.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-ethyl-ketone-mek", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Ethyl Ketone (MEK) | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Ethyl Ketone (MEK) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Ethyl Ketone Peroxide\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Ethyl Ketone Peroxide | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Ethyl Ketone Peroxide", "epdm": "4", "file": "methyl-ethyl-ketone-peroxide.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-ethyl-ketone-peroxide", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Methyl Ethyl Ketone Peroxide | 4 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Ethyl Ketone Peroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Ethyl Oleate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Ethyl Oleate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Ethyl Oleate", "epdm": "X", "file": "methyl-ethyl-oleate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-ethyl-oleate", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Ethyl Oleate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Ethyl Oleate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Formate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Formate | 4 | 2 | 2 | 4 | X | 2 | X | 2 | X | X | X | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Methyl Formate", "epdm": "2", "file": "methyl-formate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "methyl-formate", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Formate | 4 | 2 | 2 | 4 | X | 2 | X | 2 | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Formate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Hexyl Ketone (2-Octanone)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Hexyl Ketone (2-Octanone) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Hexyl Ketone (2-Octanone)", "epdm": "1", "file": "methyl-hexyl-ketone-2-octanone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methyl-hexyl-ketone-2-octanone", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methyl Hexyl Ketone (2-Octanone) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Hexyl Ketone (2-Octanone) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Iodide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Iodide | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Iodide", "epdm": "4", "file": "methyl-iodide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "methyl-iodide", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Methyl Iodide | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Iodide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Isobutyl Ketone (MIBK)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Isobutyl Ketone (MIBK) | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Methyl Isobutyl Ketone (MIBK)", "epdm": "3", "file": "methyl-isobutyl-ketone-mibk.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-isobutyl-ketone-mibk", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Isobutyl Ketone (MIBK) | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Isobutyl Ketone (MIBK) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Isocyanate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Isocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Isocyanate", "epdm": "1", "file": "methyl-isocyanate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methyl-isocyanate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methyl Isocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Isocyanate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Isopropyl Ketone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Isopropyl Ketone | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Methyl Isopropyl Ketone", "epdm": "2", "file": "methyl-isopropyl-ketone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-isopropyl-ketone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Isopropyl Ketone | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Isopropyl Ketone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Isovalerate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Isovalerate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Isovalerate", "epdm": "X", "file": "methyl-isovalerate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-isovalerate", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Isovalerate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Isovalerate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Lactate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Lactate", "epdm": "1", "file": "methyl-lactate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methyl-lactate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methyl Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Lactate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Mercaptan\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Mercaptan | X | 1 | X | X | X | 1 | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methyl Mercaptan", "epdm": "1", "file": "methyl-mercaptan.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "methyl-mercaptan", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Methyl Mercaptan | X | 1 | X | X | X | 1 | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Mercaptan \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Methacrylate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Methacrylate | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Methacrylate", "epdm": "4", "file": "methyl-methacrylate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-methacrylate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methyl Methacrylate | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Methacrylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Oleate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Oleate | 4 | 2 | 4 | 4 | X | 2 | X | 4 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Methyl Oleate", "epdm": "2", "file": "methyl-oleate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-oleate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Oleate | 4 | 2 | 4 | 4 | X | 2 | X | 4 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Oleate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Pentadiene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Pentadiene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Pentadiene", "epdm": "X", "file": "methyl-pentadiene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-pentadiene", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Pentadiene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Pentadiene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Phenylacetate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Phenylacetate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Phenylacetate", "epdm": "X", "file": "methyl-phenylacetate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-phenylacetate", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Phenylacetate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Phenylacetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Salicylate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 3\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Salicylate | 4 | 2 | 4 | 3 | X | 2 | X | 4 | X | X | X | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Methyl Salicylate", "epdm": "2", "file": "methyl-salicylate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-salicylate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "X", "source_quote": "Methyl Salicylate | 4 | 2 | 4 | 3 | X | 2 | X | 4 | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Salicylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Tertiary Butyl Ether (MTBE)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 3\n\n**Neoprene (CR):** 3\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Tertiary Butyl Ether (MTBE) | 3 | 3 | 3 | X | X | X | X | X | 3 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Methyl Tertiary Butyl Ether (MTBE)", "epdm": "3", "file": "methyl-tertiary-butyl-ether-mtbe.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "methyl-tertiary-butyl-ether-mtbe", "kalrez": "1", "neoprene": "3", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Methyl Tertiary Butyl Ether (MTBE) | 3 | 3 | 3 | X | X | X | X | X | 3 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Tertiary Butyl Ether (MTBE) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methyl Valerate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methyl Valerate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methyl Valerate", "epdm": "X", "file": "methyl-valerate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methyl-valerate", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methyl Valerate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methyl Valerate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylacrylic Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylacrylic Acid | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 4 | 3 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Methylacrylic Acid", "epdm": "2", "file": "methylacrylic-acid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methylacrylic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methylacrylic Acid | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 4 | 3 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylacrylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylal\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylal | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Methylal", "epdm": "X", "file": "methylal.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "methylal", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Methylal | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylal \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylamine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methylamine", "epdm": "1", "file": "methylamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methylamine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylamyl Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylamyl Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methylamyl Acetate", "epdm": "1", "file": "methylamyl-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methylamyl-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methylamyl Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylamyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylcyclopentane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylcyclopentane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methylcyclopentane", "epdm": "4", "file": "methylcyclopentane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methylcyclopentane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methylcyclopentane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylcyclopentane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylene Bromide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylene Bromide | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methylene Bromide", "epdm": "X", "file": "methylene-bromide.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methylene-bromide", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methylene Bromide | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylene Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylene Chloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylene Chloride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methylene Chloride", "epdm": "4", "file": "methylene-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methylene-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Methylene Chloride | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylene Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylene Iodide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylene Iodide | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methylene Iodide", "epdm": "X", "file": "methylene-iodide.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methylene-iodide", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methylene Iodide | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylene Iodide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylglycerol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylglycerol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methylglycerol", "epdm": "1", "file": "methylglycerol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methylglycerol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methylglycerol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylglycerol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylisobutyl Carbinol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylisobutyl Carbinol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methylisobutyl Carbinol", "epdm": "4", "file": "methylisobutyl-carbinol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "methylisobutyl-carbinol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Methylisobutyl Carbinol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylisobutyl Carbinol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylpyrrolidine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylpyrrolidine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methylpyrrolidine", "epdm": "X", "file": "methylpyrrolidine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methylpyrrolidine", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methylpyrrolidine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylpyrrolidine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylpyrrolidone\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylpyrrolidone | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Methylpyrrolidone", "epdm": "X", "file": "methylpyrrolidone.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "methylpyrrolidone", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Methylpyrrolidone | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylpyrrolidone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Methylsulfuric Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Methylsulfuric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Methylsulfuric Acid", "epdm": "1", "file": "methylsulfuric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "methylsulfuric-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Methylsulfuric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Methylsulfuric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-A-6091\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-A-6091 | 2 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "MIL-A-6091", "epdm": "1", "file": "mil-a-6091.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mil-a-6091", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "MIL-A-6091 | 2 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-A-6091 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-C-4339\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-C-4339 | 1 | 4 | 4 | 4 | 3 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-C-4339", "epdm": "4", "file": "mil-c-4339.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-c-4339", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "MIL-C-4339 | 1 | 4 | 4 | 4 | 3 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-C-4339 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-C-7024\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-C-7024 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-C-7024", "epdm": "4", "file": "mil-c-7024.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-c-7024", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-C-7024 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-C-7024 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-C-8188\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-C-8188 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 2 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-C-8188", "epdm": "4", "file": "mil-c-8188.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-c-8188", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "3", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-C-8188 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 2 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-C-8188 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-E-9500\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-E-9500 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "MIL-E-9500", "epdm": "1", "file": "mil-e-9500.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mil-e-9500", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "MIL-E-9500 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-E-9500 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-F-16884\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-F-16884 | 1 | 4 | 3 | 4 | 4 | 4 | 1 | 3 | 1 | 3 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-F-16884", "epdm": "4", "file": "mil-f-16884.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "mil-f-16884", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-F-16884 | 1 | 4 | 3 | 4 | 4 | 4 | 1 | 3 | 1 | 3 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-F-16884 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-F-17111\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-F-17111 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-F-17111", "epdm": "4", "file": "mil-f-17111.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-f-17111", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-F-17111 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-F-17111 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-F-25558 (RJ-1)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-F-25558 (RJ-1) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-F-25558 (RJ-1)", "epdm": "4", "file": "mil-f-25558-rj-1.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-f-25558-rj-1", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-F-25558 (RJ-1) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-F-25558 (RJ-1) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-F-25656\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-F-25656 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-F-25656", "epdm": "4", "file": "mil-f-25656.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-f-25656", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-F-25656 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-F-25656 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-F-5566\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-F-5566 | 2 | 1 | 2 | 2 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "MIL-F-5566", "epdm": "1", "file": "mil-f-5566.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mil-f-5566", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "MIL-F-5566 | 2 | 1 | 2 | 2 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-F-5566 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-F-81912 (JP-9)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-F-81912 (JP-9) | 3 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-F-81912 (JP-9)", "epdm": "4", "file": "mil-f-81912-jp-9.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mil-f-81912-jp-9", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-F-81912 (JP-9) | 3 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-F-81912 (JP-9) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-F-82522 (RJ-4)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-F-82522 (RJ-4) | 2 | 4 | 4 | 4 | 4 | 4 | 1 | X | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-F-82522 (RJ-4)", "epdm": "4", "file": "mil-f-82522-rj-4.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mil-f-82522-rj-4", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-F-82522 (RJ-4) | 2 | 4 | 4 | 4 | 4 | 4 | 1 | X | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-F-82522 (RJ-4) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-10924\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-10924 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-G-10924", "epdm": "4", "file": "mil-g-10924.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-g-10924", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-G-10924 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-10924 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-15793\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-15793 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-G-15793", "epdm": "4", "file": "mil-g-15793.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-g-15793", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-G-15793 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-15793 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-21568\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-21568 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "MIL-G-21568", "epdm": "1", "file": "mil-g-21568.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mil-g-21568", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "MIL-G-21568 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-21568 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-25013\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-25013 | 1 | 1 | 2 | 1 | 4 | 1 | 1 | 2 | 1 | 3 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "MIL-G-25013", "epdm": "1", "file": "mil-g-25013.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-g-25013", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "MIL-G-25013 | 1 | 1 | 2 | 1 | 4 | 1 | 1 | 2 | 1 | 3 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-25013 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-25537\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-25537 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-G-25537", "epdm": "4", "file": "mil-g-25537.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-g-25537", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-G-25537 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-25537 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-25760\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-25760 | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-G-25760", "epdm": "4", "file": "mil-g-25760.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-g-25760", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-G-25760 | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-25760 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-3278\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-3278 | 2 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-G-3278", "epdm": "4", "file": "mil-g-3278.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-g-3278", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-G-3278 | 2 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-3278 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-3545\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-3545 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-G-3545", "epdm": "4", "file": "mil-g-3545.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-g-3545", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-G-3545 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-3545 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-4343\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 3\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-4343 | 2 | 3 | 2 | 1 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "MIL-G-4343", "epdm": "3", "file": "mil-g-4343.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mil-g-4343", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "MIL-G-4343 | 2 | 3 | 2 | 1 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-4343 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-5572\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-5572 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-G-5572", "epdm": "4", "file": "mil-g-5572.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-g-5572", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-G-5572 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-5572 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-7118\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-7118 | 2 | 4 | 2 | 4 | 4 | 4 | 3 | 2 | 1 | 3 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-G-7118", "epdm": "4", "file": "mil-g-7118.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-g-7118", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-G-7118 | 2 | 4 | 2 | 4 | 4 | 4 | 3 | 2 | 1 | 3 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-7118 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-7187\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-7187 | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-G-7187", "epdm": "4", "file": "mil-g-7187.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-g-7187", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-G-7187 | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-7187 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-7421\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-7421 | 2 | 4 | 2 | 4 | 4 | 4 | 4 | 2 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-G-7421", "epdm": "4", "file": "mil-g-7421.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-g-7421", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-G-7421 | 2 | 4 | 2 | 4 | 4 | 4 | 4 | 2 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-7421 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-G-7711\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-G-7711 | 1 | 4 | 4 | 4 | 2 | 4 | 2 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-G-7711", "epdm": "4", "file": "mil-g-7711.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-g-7711", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "MIL-G-7711 | 1 | 4 | 4 | 4 | 2 | 4 | 2 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-G-7711 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-13910\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-13910 | 1 | 1 | 1 | 1 | 4 | 1 | 2 | 1 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "MIL-H-13910", "epdm": "1", "file": "mil-h-13910.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mil-h-13910", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "MIL-H-13910 | 1 | 1 | 1 | 1 | 4 | 1 | 2 | 1 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-13910 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-19457\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-19457 | 4 | 2 | 4 | 4 | 3 | 1 | 4 | 4 | 1 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "MIL-H-19457", "epdm": "2", "file": "mil-h-19457.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-h-19457", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "MIL-H-19457 | 4 | 2 | 4 | 4 | 3 | 1 | 4 | 4 | 1 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-19457 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-22251\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-22251 | 2 | 1 | 2 | 2 | 4 | 1 | X | 2 | X | X | X | X | X |\n\nSource: \n", "butyl": "1", "chemical": "MIL-H-22251", "epdm": "1", "file": "mil-h-22251.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-h-22251", "kalrez": "X", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "MIL-H-22251 | 2 | 1 | 2 | 2 | 4 | 1 | X | 2 | X | X | X | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-22251 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-27601\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-27601 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-H-27601", "epdm": "4", "file": "mil-h-27601.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "mil-h-27601", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-H-27601 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-27601 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-46170 -15\u00b0F to +400\u00b0F\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-46170 -15\u00b0F to +400\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-H-46170 -15\u00b0F to +400\u00b0F", "epdm": "4", "file": "mil-h-46170-15-f-to-400-f.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-h-46170-15-f-to-400-f", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-H-46170 -15\u00b0F to +400\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-46170 -15\u00b0F to +400\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-46170 -20\u00b0F to +275\u00b0F\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-46170 -20\u00b0F to +275\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-H-46170 -20\u00b0F to +275\u00b0F", "epdm": "4", "file": "mil-h-46170-20-f-to-275-f.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-h-46170-20-f-to-275-f", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-H-46170 -20\u00b0F to +275\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-46170 -20\u00b0F to +275\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-46170 -55\u00b0F to +275\u00b0F\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-46170 -55\u00b0F to +275\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-H-46170 -55\u00b0F to +275\u00b0F", "epdm": "4", "file": "mil-h-46170-55-f-to-275-f.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-h-46170-55-f-to-275-f", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-H-46170 -55\u00b0F to +275\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-46170 -55\u00b0F to +275\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-46170 -65\u00b0F to +275\u00b0F\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-46170 -65\u00b0F to +275\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-H-46170 -65\u00b0F to +275\u00b0F", "epdm": "4", "file": "mil-h-46170-65-f-to-275-f.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-h-46170-65-f-to-275-f", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-H-46170 -65\u00b0F to +275\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-46170 -65\u00b0F to +275\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-5606 -65\u00b0F to +235\u00b0F\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-5606 -65\u00b0F to +235\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-H-5606 -65\u00b0F to +235\u00b0F", "epdm": "4", "file": "mil-h-5606-65-f-to-235-f.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-h-5606-65-f-to-235-f", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-H-5606 -65\u00b0F to +235\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-5606 -65\u00b0F to +235\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-5606 -65\u00b0F to +275\u00b0F\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-5606 -65\u00b0F to +275\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-H-5606 -65\u00b0F to +275\u00b0F", "epdm": "4", "file": "mil-h-5606-65-f-to-275-f.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-h-5606-65-f-to-275-f", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-H-5606 -65\u00b0F to +275\u00b0F | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-5606 -65\u00b0F to +275\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-6083\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-6083 | 1 | 4 | 1 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-H-6083", "epdm": "4", "file": "mil-h-6083.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-h-6083", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-H-6083 | 1 | 4 | 1 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-6083 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-7083\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-7083 | 1 | 1 | 2 | 2 | 1 | 1 | 4 | 2 | 2 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "MIL-H-7083", "epdm": "1", "file": "mil-h-7083.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-h-7083", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "MIL-H-7083 | 1 | 1 | 2 | 2 | 1 | 1 | 4 | 2 | 2 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-7083 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-H-8446 (MLO-8515)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-H-8446 (MLO-8515) | 2 | 4 | 1 | 4 | 4 | 4 | 3 | X | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-H-8446 (MLO-8515)", "epdm": "4", "file": "mil-h-8446-mlo-8515.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mil-h-8446-mlo-8515", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "3", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-H-8446 (MLO-8515) | 2 | 4 | 1 | 4 | 4 | 4 | 3 | X | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-H-8446 (MLO-8515) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-J-5161\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-J-5161 | 2 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-J-5161", "epdm": "4", "file": "mil-j-5161.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-j-5161", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-J-5161 | 2 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-J-5161 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-15016\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-15016 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-15016", "epdm": "4", "file": "mil-l-15016.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-l-15016", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-15016 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-15016 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-15017\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-15017 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-15017", "epdm": "4", "file": "mil-l-15017.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-l-15017", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-15017 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-15017 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-17331\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** X\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-17331 | 1 | 4 | X | 4 | 4 | 4 | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-17331", "epdm": "4", "file": "mil-l-17331.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mil-l-17331", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-17331 | 1 | 4 | X | 4 | 4 | 4 | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-17331 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-2104\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-2104 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-2104", "epdm": "4", "file": "mil-l-2104.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "mil-l-2104", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-2104 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-2104 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-21260\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-21260 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-21260", "epdm": "4", "file": "mil-l-21260.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-l-21260", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-21260 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-21260 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-23699\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-23699 | 2 | 4 | 3 | 4 | 4 | 4 | 3 | 3 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-23699", "epdm": "4", "file": "mil-l-23699.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "mil-l-23699", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-23699 | 2 | 4 | 3 | 4 | 4 | 4 | 3 | 3 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-23699 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-25681\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-25681 | 2 | 1 | 2 | 2 | 4 | 1 | 2 | 2 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "MIL-L-25681", "epdm": "1", "file": "mil-l-25681.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-l-25681", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "2", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "MIL-L-25681 | 2 | 1 | 2 | 2 | 4 | 1 | 2 | 2 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-25681 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-3150\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-3150 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-3150", "epdm": "4", "file": "mil-l-3150.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-l-3150", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-3150 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-3150 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-6081\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-6081 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-6081", "epdm": "4", "file": "mil-l-6081.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-l-6081", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-6081 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-6081 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-6082\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-6082 | 1 | 4 | 2 | 4 | 3 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-6082", "epdm": "4", "file": "mil-l-6082.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-l-6082", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "MIL-L-6082 | 1 | 4 | 2 | 4 | 3 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-6082 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-6085\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-6085 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-6085", "epdm": "4", "file": "mil-l-6085.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-l-6085", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-6085 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-6085 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-6387\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-6387 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-6387", "epdm": "4", "file": "mil-l-6387.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-l-6387", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-6387 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-6387 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-7808\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-7808 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-7808", "epdm": "4", "file": "mil-l-7808.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-l-7808", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-7808 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-7808 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-7870\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-7870 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-7870", "epdm": "4", "file": "mil-l-7870.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-l-7870", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-7870 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-7870 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-9000\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-9000 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-9000", "epdm": "4", "file": "mil-l-9000.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-l-9000", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-9000 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-9000 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-L-9236\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-L-9236 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-L-9236", "epdm": "4", "file": "mil-l-9236.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-l-9236", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-L-9236 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-L-9236 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-O-3503\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-O-3503 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-O-3503", "epdm": "4", "file": "mil-o-3503.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-o-3503", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-O-3503 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-O-3503 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-P-27402\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-P-27402 | 2 | 1 | 2 | 2 | 4 | 1 | X | 2 | X | X | X | X | X |\n\nSource: \n", "butyl": "1", "chemical": "MIL-P-27402", "epdm": "1", "file": "mil-p-27402.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-p-27402", "kalrez": "X", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "MIL-P-27402 | 2 | 1 | 2 | 2 | 4 | 1 | X | 2 | X | X | X | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-P-27402 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-R-25576 (RP-1)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-R-25576 (RP-1) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-R-25576 (RP-1)", "epdm": "4", "file": "mil-r-25576-rp-1.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-r-25576-rp-1", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-R-25576 (RP-1) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-R-25576 (RP-1) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-S-3136, Type I Fuel\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-S-3136, Type I Fuel | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-S-3136, Type I Fuel", "epdm": "4", "file": "mil-s-3136-type-i-fuel.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-s-3136-type-i-fuel", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-S-3136, Type I Fuel | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-S-3136, Type I Fuel \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-S-3136, Type II Fuel\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-S-3136, Type II Fuel | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-S-3136, Type II Fuel", "epdm": "4", "file": "mil-s-3136-type-ii-fuel.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-s-3136-type-ii-fuel", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "3", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-S-3136, Type II Fuel | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-S-3136, Type II Fuel \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-S-3136, Type III Fuel\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-S-3136, Type III Fuel | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-S-3136, Type III Fuel", "epdm": "4", "file": "mil-s-3136-type-iii-fuel.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-s-3136-type-iii-fuel", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "3", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-S-3136, Type III Fuel | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-S-3136, Type III Fuel \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-S-3136, Type IV Oil High Swell\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-S-3136, Type IV Oil High Swell | 1 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-S-3136, Type IV Oil High Swell", "epdm": "4", "file": "mil-s-3136-type-iv-oil-high-swell.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-s-3136-type-iv-oil-high-swell", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "MIL-S-3136, Type IV Oil High Swell | 1 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-S-3136, Type IV Oil High Swell \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-S-3136, Type IV Oil Low Swell\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-S-3136, Type IV Oil Low Swell | 1 | 4 | 1 | 4 | 3 | 4 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-S-3136, Type IV Oil Low Swell", "epdm": "4", "file": "mil-s-3136-type-iv-oil-low-swell.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mil-s-3136-type-iv-oil-low-swell", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "MIL-S-3136, Type IV Oil Low Swell | 1 | 4 | 1 | 4 | 3 | 4 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-S-3136, Type IV Oil Low Swell \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-S-3136, Type V Oil Medium Swell\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-S-3136, Type V Oil Medium Swell | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-S-3136, Type V Oil Medium Swell", "epdm": "4", "file": "mil-s-3136-type-v-oil-medium-swell.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mil-s-3136-type-v-oil-medium-swell", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "MIL-S-3136, Type V Oil Medium Swell | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-S-3136, Type V Oil Medium Swell \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-S-81087\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-S-81087 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "MIL-S-81087", "epdm": "1", "file": "mil-s-81087.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mil-s-81087", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "MIL-S-81087 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-S-81087 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-T-5624, JP-4, JP-5\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-T-5624, JP-4, JP-5 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-T-5624, JP-4, JP-5", "epdm": "4", "file": "mil-t-5624-jp-4-jp-5.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mil-t-5624-jp-4-jp-5", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-T-5624, JP-4, JP-5 | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-T-5624, JP-4, JP-5 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MIL-T-83133\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MIL-T-83133 | 1 | 4 | 3 | 4 | 4 | 4 | 1 | X | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MIL-T-83133", "epdm": "4", "file": "mil-t-83133.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mil-t-83133", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MIL-T-83133 | 1 | 4 | 3 | 4 | 4 | 4 | 1 | X | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MIL-T-83133 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Milk\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Milk | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Milk", "epdm": "1", "file": "milk.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "milk", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Milk | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Milk \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mineral Oils\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mineral Oils | 1 | 3 | 2 | 4 | 2 | 3 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Mineral Oils", "epdm": "3", "file": "mineral-oils.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mineral-oils", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Mineral Oils | 1 | 3 | 2 | 4 | 2 | 3 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mineral Oils \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mixed Acids\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mixed Acids | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mixed Acids", "epdm": "1", "file": "mixed-acids.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mixed-acids", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mixed Acids | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mixed Acids \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MLO-7277 Hydr.\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MLO-7277 Hydr. | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 3 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MLO-7277 Hydr.", "epdm": "4", "file": "mlo-7277-hydr.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mlo-7277-hydr", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MLO-7277 Hydr. | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 3 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MLO-7277 Hydr. \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MLO-7557\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MLO-7557 | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 3 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MLO-7557", "epdm": "4", "file": "mlo-7557.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mlo-7557", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MLO-7557 | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 3 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MLO-7557 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MLO-8200 Hydr.\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MLO-8200 Hydr. | 2 | 4 | 1 | 4 | 4 | 4 | X | 4 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MLO-8200 Hydr.", "epdm": "4", "file": "mlo-8200-hydr.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mlo-8200-hydr", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MLO-8200 Hydr. | 2 | 4 | 1 | 4 | 4 | 4 | X | 4 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MLO-8200 Hydr. \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** MLO-8515\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> MLO-8515 | 2 | 4 | 1 | 4 | 4 | 4 | 3 | 3 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "MLO-8515", "epdm": "4", "file": "mlo-8515.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "mlo-8515", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "3", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "MLO-8515 | 2 | 4 | 1 | 4 | 4 | 4 | 3 | 3 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "MLO-8515 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobil 24dte\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobil 24dte | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mobil 24dte", "epdm": "4", "file": "mobil-24dte.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mobil-24dte", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mobil 24dte | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobil 24dte \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobil 254 Lubricant\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobil 254 Lubricant | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mobil 254 Lubricant", "epdm": "X", "file": "mobil-254-lubricant.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mobil-254-lubricant", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mobil 254 Lubricant | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobil 254 Lubricant \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobil Delvac 1100, 1110, 1120, 1130\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobil Delvac 1100, 1110, 1120, 1130 | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mobil Delvac 1100, 1110, 1120, 1130", "epdm": "4", "file": "mobil-delvac-1100-1110-1120-1130.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mobil-delvac-1100-1110-1120-1130", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mobil Delvac 1100, 1110, 1120, 1130 | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobil Delvac 1100, 1110, 1120, 1130 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobil HF\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobil HF | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mobil HF", "epdm": "4", "file": "mobil-hf.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mobil-hf", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mobil HF | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobil HF \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobil Nivac 20, 30\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobil Nivac 20, 30 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mobil Nivac 20, 30", "epdm": "1", "file": "mobil-nivac-20-30.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mobil-nivac-20-30", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mobil Nivac 20, 30 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobil Nivac 20, 30 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobil SHC 500 Series\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobil SHC 500 Series | 3 | 4 | 2 | X | 2 | 4 | 1 | 2 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Mobil SHC 500 Series", "epdm": "4", "file": "mobil-shc-500-series.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mobil-shc-500-series", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "2", "source_quote": "Mobil SHC 500 Series | 3 | 4 | 2 | X | 2 | 4 | 1 | 2 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobil SHC 500 Series \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobil SHC 600 Series\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobil SHC 600 Series | 3 | 4 | 2 | 4 | 3 | 4 | 1 | 2 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Mobil SHC 600 Series", "epdm": "4", "file": "mobil-shc-600-series.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mobil-shc-600-series", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Mobil SHC 600 Series | 3 | 4 | 2 | 4 | 3 | 4 | 1 | 2 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobil SHC 600 Series \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobil Therm 600\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobil Therm 600 | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mobil Therm 600", "epdm": "4", "file": "mobil-therm-600.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mobil-therm-600", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mobil Therm 600 | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobil Therm 600 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobil Velocite c\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobil Velocite c | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mobil Velocite c", "epdm": "4", "file": "mobil-velocite-c.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mobil-velocite-c", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mobil Velocite c | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobil Velocite c \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobilgas WA200 ATF\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobilgas WA200 ATF | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mobilgas WA200 ATF", "epdm": "4", "file": "mobilgas-wa200-atf.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mobilgas-wa200-atf", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mobilgas WA200 ATF | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobilgas WA200 ATF \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobilgear 600 Series\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 3\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobilgear 600 Series | 3 | 3 | 1 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Mobilgear 600 Series", "epdm": "3", "file": "mobilgear-600-series.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mobilgear-600-series", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Mobilgear 600 Series | 3 | 3 | 1 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobilgear 600 Series \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobilgear SHC ISO Series\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 3\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobilgear SHC ISO Series | 3 | 3 | 2 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Mobilgear SHC ISO Series", "epdm": "3", "file": "mobilgear-shc-iso-series.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mobilgear-shc-iso-series", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Mobilgear SHC ISO Series | 3 | 3 | 2 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobilgear SHC ISO Series \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobilgrease HP\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobilgrease HP | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Mobilgrease HP", "epdm": "4", "file": "mobilgrease-hp.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "mobilgrease-hp", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Mobilgrease HP | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobilgrease HP \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobilgrease HTS\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobilgrease HTS | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Mobilgrease HTS", "epdm": "4", "file": "mobilgrease-hts.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "mobilgrease-hts", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Mobilgrease HTS | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobilgrease HTS \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobilgrease SM\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobilgrease SM | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Mobilgrease SM", "epdm": "4", "file": "mobilgrease-sm.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "mobilgrease-sm", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Mobilgrease SM | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobilgrease SM \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobilith AW Series\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobilith AW Series | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Mobilith AW Series", "epdm": "4", "file": "mobilith-aw-series.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "mobilith-aw-series", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Mobilith AW Series | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobilith AW Series \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobilith SHC Series\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobilith SHC Series | 2 | 4 | 3 | 4 | 2 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Mobilith SHC Series", "epdm": "4", "file": "mobilith-shc-series.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "mobilith-shc-series", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Mobilith SHC Series | 2 | 4 | 3 | 4 | 2 | 4 | 1 | 3 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobilith SHC Series \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobiljet II Lubricant\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobiljet II Lubricant | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mobiljet II Lubricant", "epdm": "X", "file": "mobiljet-ii-lubricant.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mobiljet-ii-lubricant", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mobiljet II Lubricant | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobiljet II Lubricant \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobilmistlube Series\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 3\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobilmistlube Series | 3 | 3 | 1 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Mobilmistlube Series", "epdm": "3", "file": "mobilmistlube-series.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mobilmistlube-series", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Mobilmistlube Series | 3 | 3 | 1 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobilmistlube Series \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobiloil SAE 20\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobiloil SAE 20 | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mobiloil SAE 20", "epdm": "4", "file": "mobiloil-sae-20.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mobiloil-sae-20", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mobiloil SAE 20 | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobiloil SAE 20 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mobilux\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mobilux | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mobilux", "epdm": "4", "file": "mobilux.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mobilux", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mobilux | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mobilux \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Molybdenum Disulfide Grease\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Molybdenum Disulfide Grease | 1 | 4 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Molybdenum Disulfide Grease", "epdm": "4", "file": "molybdenum-disulfide-grease.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "molybdenum-disulfide-grease", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Molybdenum Disulfide Grease | 1 | 4 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Molybdenum Disulfide Grease \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Molybdenum Oxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Molybdenum Oxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Molybdenum Oxide", "epdm": "1", "file": "molybdenum-oxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "molybdenum-oxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Molybdenum Oxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Molybdenum Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Molybdenum Trioxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Molybdenum Trioxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Molybdenum Trioxide", "epdm": "1", "file": "molybdenum-trioxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "molybdenum-trioxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Molybdenum Trioxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Molybdenum Trioxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Molybdic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Molybdic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Molybdic Acid", "epdm": "1", "file": "molybdic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "molybdic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Molybdic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Molybdic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monobromobenzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monobromobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Monobromobenzene", "epdm": "4", "file": "monobromobenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "monobromobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Monobromobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monobromobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monobromotoluene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monobromotoluene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Monobromotoluene", "epdm": "X", "file": "monobromotoluene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "monobromotoluene", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Monobromotoluene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monobromotoluene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monobutyl Paracresol\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monobutyl Paracresol | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Monobutyl Paracresol", "epdm": "X", "file": "monobutyl-paracresol.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "monobutyl-paracresol", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Monobutyl Paracresol | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monobutyl Paracresol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monochloroacetic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monochloroacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Monochloroacetic Acid", "epdm": "1", "file": "monochloroacetic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "monochloroacetic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Monochloroacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monochloroacetic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monochlorobenzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monochlorobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Monochlorobenzene", "epdm": "4", "file": "monochlorobenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "monochlorobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Monochlorobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monochlorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monochlorobutene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monochlorobutene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Monochlorobutene", "epdm": "X", "file": "monochlorobutene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "monochlorobutene", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Monochlorobutene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monochlorobutene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monochlorohydrin\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monochlorohydrin | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Monochlorohydrin", "epdm": "X", "file": "monochlorohydrin.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "monochlorohydrin", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Monochlorohydrin | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monochlorohydrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monoethanolamine (MEA)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monoethanolamine (MEA) | 4 | 2 | 4 | 2 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Monoethanolamine (MEA)", "epdm": "2", "file": "monoethanolamine-mea.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "monoethanolamine-mea", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Monoethanolamine (MEA) | 4 | 2 | 4 | 2 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monoethanolamine (MEA) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monoethyl Amine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monoethyl Amine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Monoethyl Amine", "epdm": "1", "file": "monoethyl-amine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "monoethyl-amine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Monoethyl Amine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monoethyl Amine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monoisopropylamine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monoisopropylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Monoisopropylamine", "epdm": "1", "file": "monoisopropylamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "monoisopropylamine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Monoisopropylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monoisopropylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monomethyl Aniline\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monomethyl Aniline | 4 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 2 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Monomethyl Aniline", "epdm": "1", "file": "monomethyl-aniline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "monomethyl-aniline", "kalrez": "1", "neoprene": "1", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Monomethyl Aniline | 4 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 2 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monomethyl Aniline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monomethyl Ether (Dimethyl Ether)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monomethyl Ether (Dimethyl Ether) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Monomethyl Ether (Dimethyl Ether)", "epdm": "X", "file": "monomethyl-ether-dimethyl-ether.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "monomethyl-ether-dimethyl-ether", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Monomethyl Ether (Dimethyl Ether) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monomethyl Ether (Dimethyl Ether) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monomethyl Ether (Methyl Ether)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monomethyl Ether (Methyl Ether) | 1 | 4 | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Monomethyl Ether (Methyl Ether)", "epdm": "4", "file": "monomethyl-ether-methyl-ether.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "monomethyl-ether-methyl-ether", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Monomethyl Ether (Methyl Ether) | 1 | 4 | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monomethyl Ether (Methyl Ether) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monomethyl Hydrazine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monomethyl Hydrazine | 2 | 1 | 2 | 2 | 4 | 1 | X | 2 | X | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Monomethyl Hydrazine", "epdm": "1", "file": "monomethyl-hydrazine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "monomethyl-hydrazine", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Monomethyl Hydrazine | 2 | 1 | 2 | 2 | 4 | 1 | X | 2 | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monomethyl Hydrazine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monomethylamine (MMA)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monomethylamine (MMA) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Monomethylamine (MMA)", "epdm": "1", "file": "monomethylamine-mma.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "monomethylamine-mma", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Monomethylamine (MMA) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monomethylamine (MMA) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monomethylaniline\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monomethylaniline | 4 | 2 | 4 | 4 | X | 2 | 4 | 4 | 2 | 4 | X | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Monomethylaniline", "epdm": "2", "file": "monomethylaniline.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "monomethylaniline", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Monomethylaniline | 4 | 2 | 4 | 4 | X | 2 | 4 | 4 | 2 | 4 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monomethylaniline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mononitrotoluene & Dinitrotoluene (40/60 Mixture)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mononitrotoluene & Dinitrotoluene (40/60 Mixture) | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 3 | X | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Mononitrotoluene & Dinitrotoluene (40/60 Mixture)", "epdm": "1", "file": "mononitrotoluene-dinitrotoluene-40-60-mixture.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "mononitrotoluene-dinitrotoluene-40-60-mixture", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Mononitrotoluene & Dinitrotoluene (40/60 Mixture) | 4 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 3 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mononitrotoluene & Dinitrotoluene (40/60 Mixture) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mononitrotoluene\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mononitrotoluene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Mononitrotoluene", "epdm": "1", "file": "mononitrotoluene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "mononitrotoluene", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Mononitrotoluene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mononitrotoluene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Monovinyl Acetylene\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Monovinyl Acetylene | 1 | 1 | 2 | 2 | 2 | 1 | X | 2 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Monovinyl Acetylene", "epdm": "1", "file": "monovinyl-acetylene.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "monovinyl-acetylene", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Monovinyl Acetylene | 1 | 1 | 2 | 2 | 2 | 1 | X | 2 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Monovinyl Acetylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mopar Brake Fluid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mopar Brake Fluid | 3 | 1 | 2 | 1 | 3 | 2 | X | 2 | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Mopar Brake Fluid", "epdm": "1", "file": "mopar-brake-fluid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "mopar-brake-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Mopar Brake Fluid | 3 | 1 | 2 | 1 | 3 | 2 | X | 2 | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mopar Brake Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Morpholine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Morpholine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Morpholine", "epdm": "X", "file": "morpholine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "morpholine", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Morpholine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Morpholine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Motor Oils\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Motor Oils | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Motor Oils", "epdm": "4", "file": "motor-oils.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "motor-oils", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Motor Oils | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Motor Oils \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Mustard Gas\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Mustard Gas | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Mustard Gas", "epdm": "X", "file": "mustard-gas.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "mustard-gas", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Mustard Gas | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Mustard Gas \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Myristic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Myristic Acid | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Myristic Acid", "epdm": "X", "file": "myristic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "myristic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Myristic Acid | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Myristic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Naphthalene Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Naphthalene Chloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Naphthalene Chloride", "epdm": "X", "file": "naphthalene-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "naphthalene-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Naphthalene Chloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Naphthalene Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Naphthalene Sulfonic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Naphthalene Sulfonic Acid | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Naphthalene Sulfonic Acid", "epdm": "X", "file": "naphthalene-sulfonic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "naphthalene-sulfonic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Naphthalene Sulfonic Acid | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Naphthalene Sulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Naphthalene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Naphthalene | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Naphthalene", "epdm": "4", "file": "naphthalene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "naphthalene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Naphthalene | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Naphthalene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Naphthalenic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Naphthalenic Acid | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Naphthalenic Acid", "epdm": "X", "file": "naphthalenic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "naphthalenic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Naphthalenic Acid | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Naphthalenic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Naphthalonic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Naphthalonic Acid | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Naphthalonic Acid", "epdm": "X", "file": "naphthalonic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "naphthalonic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Naphthalonic Acid | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Naphthalonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Naphthenic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Naphthenic Acid | 2 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Naphthenic Acid", "epdm": "4", "file": "naphthenic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "naphthenic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Naphthenic Acid | 2 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Naphthenic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Naphthylamine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Naphthylamine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Naphthylamine", "epdm": "X", "file": "naphthylamine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "naphthylamine", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Naphthylamine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Naphthylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Naptha\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Naptha | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Naptha", "epdm": "4", "file": "naptha.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "naptha", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Naptha | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Naptha \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Natural Gas\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Natural Gas | 1 | 4 | 1 | 2 | 4 | 4 | 2 | 1 | 1 | 2 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Natural Gas", "epdm": "4", "file": "natural-gas.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "natural-gas", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Natural Gas | 1 | 4 | 1 | 2 | 4 | 4 | 2 | 1 | 1 | 2 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Natural Gas \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Neatsfoot Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Neatsfoot Oil | 1 | 2 | 4 | 4 | 2 | 2 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Neatsfoot Oil", "epdm": "2", "file": "neatsfoot-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "neatsfoot-oil", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Neatsfoot Oil | 1 | 2 | 4 | 4 | 2 | 2 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Neatsfoot Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Neon\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Neon | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Neon", "epdm": "1", "file": "neon.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "neon", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Neon | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Neon \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Neville Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Neville Acid | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Neville Acid", "epdm": "2", "file": "neville-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "neville-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Neville Acid | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Neville Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nickel Acetate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nickel Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nickel Acetate", "epdm": "1", "file": "nickel-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "nickel-acetate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Nickel Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nickel Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nickel Ammonium Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nickel Ammonium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nickel Ammonium Sulfate", "epdm": "1", "file": "nickel-ammonium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nickel-ammonium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nickel Ammonium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nickel Ammonium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nickel Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nickel Chloride | 1 | 1 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nickel Chloride", "epdm": "1", "file": "nickel-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nickel-chloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Nickel Chloride | 1 | 1 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nickel Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nickel Cyanide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nickel Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nickel Cyanide", "epdm": "1", "file": "nickel-cyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nickel-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nickel Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nickel Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nickel Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nickel Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nickel Nitrate", "epdm": "1", "file": "nickel-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nickel-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nickel Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nickel Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nickel Salts\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nickel Salts | 1 | 1 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nickel Salts", "epdm": "1", "file": "nickel-salts.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nickel-salts", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Nickel Salts | 1 | 1 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nickel Salts \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nickel Sulfate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nickel Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 3 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nickel Sulfate", "epdm": "1", "file": "nickel-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nickel-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Nickel Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 3 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nickel Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nicotinamide Hydrochloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nicotinamide Hydrochloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nicotinamide Hydrochloride", "epdm": "1", "file": "nicotinamide-hydrochloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nicotinamide-hydrochloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nicotinamide Hydrochloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nicotinamide Hydrochloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nicotinamide (Niacinamide)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nicotinamide (Niacinamide) | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Nicotinamide (Niacinamide)", "epdm": "X", "file": "nicotinamide-niacinamide.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "nicotinamide-niacinamide", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Nicotinamide (Niacinamide) | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nicotinamide (Niacinamide) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nicotine Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nicotine Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nicotine Sulfate", "epdm": "1", "file": "nicotine-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nicotine-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nicotine Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nicotine Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nicotine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nicotine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Nicotine", "epdm": "X", "file": "nicotine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "nicotine", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Nicotine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nicotine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Niter Cake\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Niter Cake | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Niter Cake", "epdm": "1", "file": "niter-cake.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "niter-cake", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Niter Cake | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Niter Cake \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitric Acid (0 - 50%)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitric Acid (0 - 50%) | 4 | 2 | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Nitric Acid (0 - 50%)", "epdm": "2", "file": "nitric-acid-0-50.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "nitric-acid-0-50", "kalrez": "1", "neoprene": "X", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Nitric Acid (0 - 50%) | 4 | 2 | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitric Acid (0 - 50%) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitric Acid 3 Molar to 158\u00b0F\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 3\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitric Acid 3 Molar to 158\u00b0F | 4 | 2 | 4 | 3 | 4 | 2 | 4 | 2 | 3 | 4 | 4 | X | 2 |\n\nSource: \n", "butyl": "2", "chemical": "Nitric Acid 3 Molar to 158\u00b0F", "epdm": "2", "file": "nitric-acid-3-molar-to-158-f.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "nitric-acid-3-molar-to-158-f", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "4", "source_quote": "Nitric Acid 3 Molar to 158\u00b0F | 4 | 2 | 4 | 3 | 4 | 2 | 4 | 2 | 3 | 4 | 4 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitric Acid 3 Molar to 158\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitric Acid (50 - 100%)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitric Acid (50 - 100%) | 4 | 4 | X | X | X | X | X | X | 3 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Nitric Acid (50 - 100%)", "epdm": "4", "file": "nitric-acid-50-100.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "nitric-acid-50-100", "kalrez": "1", "neoprene": "X", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Nitric Acid (50 - 100%) | 4 | 4 | X | X | X | X | X | X | 3 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitric Acid (50 - 100%) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitric Acid Concentrated Room Temp.\n\n**Nitrile (NBR):** X\n\n**EPDM:** 4\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitric Acid Concentrated Room Temp. | X | 4 | X | X | X | X | X | X | 2 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Nitric Acid Concentrated Room Temp.", "epdm": "4", "file": "nitric-acid-concentrated-room-temp.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "nitric-acid-concentrated-room-temp", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Nitric Acid Concentrated Room Temp. | X | 4 | X | X | X | X | X | X | 2 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitric Acid Concentrated Room Temp. \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitric Acid Concentrated to 158\u00b0F\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitric Acid Concentrated to 158\u00b0F | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | 4 | 4 | X | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Nitric Acid Concentrated to 158\u00b0F", "epdm": "4", "file": "nitric-acid-concentrated-to-158-f.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "nitric-acid-concentrated-to-158-f", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Nitric Acid Concentrated to 158\u00b0F | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | 4 | 4 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitric Acid Concentrated to 158\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitric Acid, Red Fuming\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitric Acid, Red Fuming | 4 | 4 | 4 | X | X | X | X | X | 2 | X | X | 3 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Nitric Acid, Red Fuming", "epdm": "4", "file": "nitric-acid-red-fuming.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "nitric-acid-red-fuming", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Nitric Acid, Red Fuming | 4 | 4 | 4 | X | X | X | X | X | 2 | X | X | 3 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitric Acid, Red Fuming \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitric Acid, White Fuming\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitric Acid, White Fuming | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Nitric Acid, White Fuming", "epdm": "X", "file": "nitric-acid-white-fuming.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "nitric-acid-white-fuming", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Nitric Acid, White Fuming | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitric Acid, White Fuming \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitroaniline\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitroaniline", "epdm": "1", "file": "nitroaniline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitroaniline", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitroaniline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrobenzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrobenzene | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 2 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrobenzene", "epdm": "1", "file": "nitrobenzene.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "nitrobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Nitrobenzene | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 2 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrobenzoic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrobenzoic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrobenzoic Acid", "epdm": "1", "file": "nitrobenzoic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrobenzoic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrobenzoic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrobenzoic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrocellulose\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrocellulose | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrocellulose", "epdm": "1", "file": "nitrocellulose.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrocellulose", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrocellulose | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrocellulose \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrochlorobenzene\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrochlorobenzene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrochlorobenzene", "epdm": "1", "file": "nitrochlorobenzene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrochlorobenzene", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrochlorobenzene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrochlorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrochloroform\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrochloroform | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrochloroform", "epdm": "1", "file": "nitrochloroform.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrochloroform", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrochloroform | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrochloroform \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrodiethylaniline\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrodiethylaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrodiethylaniline", "epdm": "1", "file": "nitrodiethylaniline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrodiethylaniline", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrodiethylaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrodiethylaniline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrodiphenyl Ether\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrodiphenyl Ether | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Nitrodiphenyl Ether", "epdm": "X", "file": "nitrodiphenyl-ether.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "nitrodiphenyl-ether", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Nitrodiphenyl Ether | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrodiphenyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitroethane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitroethane | 4 | 2 | 2 | 2 | 4 | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Nitroethane", "epdm": "2", "file": "nitroethane.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "nitroethane", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Nitroethane | 4 | 2 | 2 | 2 | 4 | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitroethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrofluorobenzene\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrofluorobenzene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrofluorobenzene", "epdm": "1", "file": "nitrofluorobenzene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrofluorobenzene", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrofluorobenzene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrofluorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrogen Oxides\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrogen Oxides | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrogen Oxides", "epdm": "1", "file": "nitrogen-oxides.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrogen-oxides", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrogen Oxides | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrogen Oxides \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrogen Tetroxide (N2O4)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrogen Tetroxide (N2O4) | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | X | 2 |\n\nSource: \n", "butyl": "3", "chemical": "Nitrogen Tetroxide (N2O4)", "epdm": "4", "file": "nitrogen-tetroxide-n2o4.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "nitrogen-tetroxide-n2o4", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Nitrogen Tetroxide (N2O4) | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrogen Tetroxide (N2O4) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrogen Trifluoride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrogen Trifluoride | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Nitrogen Trifluoride", "epdm": "X", "file": "nitrogen-trifluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "nitrogen-trifluoride", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Nitrogen Trifluoride | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrogen Trifluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrogen\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrogen | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrogen", "epdm": "1", "file": "nitrogen.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrogen", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Nitrogen | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrogen \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitroglycerine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitroglycerine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitroglycerine", "epdm": "1", "file": "nitroglycerine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitroglycerine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitroglycerine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitroglycerine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrogylcerol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrogylcerol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrogylcerol", "epdm": "1", "file": "nitrogylcerol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrogylcerol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrogylcerol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrogylcerol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitroisopropylbenzene\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitroisopropylbenzene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitroisopropylbenzene", "epdm": "1", "file": "nitroisopropylbenzene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitroisopropylbenzene", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitroisopropylbenzene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitroisopropylbenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitromethane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 3\n\n**SBR:** 3\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitromethane | 4 | 2 | 3 | 3 | 4 | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Nitromethane", "epdm": "2", "file": "nitromethane.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "nitromethane", "kalrez": "1", "neoprene": "3", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "4", "source_quote": "Nitromethane | 4 | 2 | 3 | 3 | 4 | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitromethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrophenol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrophenol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrophenol", "epdm": "1", "file": "nitrophenol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrophenol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrophenol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrophenol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitropropane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitropropane | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Nitropropane", "epdm": "2", "file": "nitropropane.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "nitropropane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Nitropropane | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitropropane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrosyl Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrosyl Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Nitrosyl Chloride", "epdm": "X", "file": "nitrosyl-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "nitrosyl-chloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Nitrosyl Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrosyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrosylsulfuric Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrosylsulfuric Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Nitrosylsulfuric Acid", "epdm": "X", "file": "nitrosylsulfuric-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "nitrosylsulfuric-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Nitrosylsulfuric Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrosylsulfuric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrothiophene\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrothiophene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrothiophene", "epdm": "1", "file": "nitrothiophene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrothiophene", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrothiophene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrothiophene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrotoluene\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrotoluene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrotoluene", "epdm": "1", "file": "nitrotoluene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrotoluene", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrotoluene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrotoluene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrous Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrous Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Nitrous Acid", "epdm": "1", "file": "nitrous-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "nitrous-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Nitrous Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrous Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nitrous Oxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nitrous Oxide | 1 | 1 | X | X | 1 | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Nitrous Oxide", "epdm": "1", "file": "nitrous-oxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "nitrous-oxide", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "1", "source_quote": "Nitrous Oxide | 1 | 1 | X | X | 1 | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nitrous Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nonane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nonane | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Nonane", "epdm": "4", "file": "nonane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "nonane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Nonane | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nonane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Noryl GE Phenolic\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Noryl GE Phenolic | 1 | 1 | X | X | X | X | X | X | X | X | X | X | X |\n\nSource: \n", "butyl": "X", "chemical": "Noryl GE Phenolic", "epdm": "1", "file": "noryl-ge-phenolic.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "noryl-ge-phenolic", "kalrez": "X", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Noryl GE Phenolic | 1 | 1 | X | X | X | X | X | X | X | X | X | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Noryl GE Phenolic \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Nyvac FR200 Mobil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Nyvac FR200 Mobil | 1 | 1 | 2 | 4 | X | 4 | X | 3 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Nyvac FR200 Mobil", "epdm": "1", "file": "nyvac-fr200-mobil.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "nyvac-fr200-mobil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Nyvac FR200 Mobil | 1 | 1 | 2 | 4 | X | 4 | X | 3 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Nyvac FR200 Mobil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Octachloro Toluene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Octachloro Toluene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Octachloro Toluene", "epdm": "4", "file": "octachloro-toluene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "octachloro-toluene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Octachloro Toluene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Octachloro Toluene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Octadecane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Octadecane | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Octadecane", "epdm": "4", "file": "octadecane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "octadecane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Octadecane | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Octadecane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Octanal (n-Octanaldehyde)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Octanal (n-Octanaldehyde) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Octanal (n-Octanaldehyde)", "epdm": "4", "file": "octanal-n-octanaldehyde.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "octanal-n-octanaldehyde", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Octanal (n-Octanaldehyde) | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Octanal (n-Octanaldehyde) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Octane or n-Octane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Octane or n-Octane | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Octane or n-Octane", "epdm": "4", "file": "octane-or-n-octane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "octane-or-n-octane", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Octane or n-Octane | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Octane or n-Octane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Octyl Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Octyl Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Octyl Acetate", "epdm": "1", "file": "octyl-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "octyl-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Octyl Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Octyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Octyl Alcohol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 3\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Octyl Alcohol | 2 | 3 | 2 | 2 | 2 | 2 | 4 | 2 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Octyl Alcohol", "epdm": "3", "file": "octyl-alcohol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "octyl-alcohol", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Octyl Alcohol | 2 | 3 | 2 | 2 | 2 | 2 | 4 | 2 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Octyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Octyl Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Octyl Chloride | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Octyl Chloride", "epdm": "4", "file": "octyl-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "octyl-chloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Octyl Chloride | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Octyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Octyl Phthalate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Octyl Phthalate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Octyl Phthalate", "epdm": "X", "file": "octyl-phthalate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "octyl-phthalate", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Octyl Phthalate | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Octyl Phthalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Olefins\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Olefins | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Olefins", "epdm": "X", "file": "olefins.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "olefins", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Olefins | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Olefins \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Oleic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Oleic Acid | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 2 | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Oleic Acid", "epdm": "4", "file": "oleic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "oleic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Oleic Acid | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 2 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Oleic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Oleum (Fuming Sulfuric Acid)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Oleum (Fuming Sulfuric Acid) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Oleum (Fuming Sulfuric Acid)", "epdm": "4", "file": "oleum-fuming-sulfuric-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "oleum-fuming-sulfuric-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Oleum (Fuming Sulfuric Acid) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Oleum (Fuming Sulfuric Acid) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Oleum Spirits\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Oleum Spirits | 2 | 4 | 3 | 4 | 4 | 4 | X | 2 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Oleum Spirits", "epdm": "4", "file": "oleum-spirits.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "oleum-spirits", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "X", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Oleum Spirits | 2 | 4 | 3 | 4 | 4 | 4 | X | 2 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Oleum Spirits \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Oleyl Alcohol\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Oleyl Alcohol | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Oleyl Alcohol", "epdm": "X", "file": "oleyl-alcohol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "oleyl-alcohol", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Oleyl Alcohol | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Oleyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Olive Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Olive Oil | 1 | 2 | 2 | 4 | 3 | 2 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Olive Oil", "epdm": "2", "file": "olive-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "olive-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Olive Oil | 1 | 2 | 2 | 4 | 3 | 2 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Olive Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Oronite 8200\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Oronite 8200 | 2 | 4 | 1 | 4 | 4 | 4 | X | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Oronite 8200", "epdm": "4", "file": "oronite-8200.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "oronite-8200", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Oronite 8200 | 2 | 4 | 1 | 4 | 4 | 4 | X | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Oronite 8200 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Oronite 8515\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Oronite 8515 | 2 | 4 | 1 | 4 | 4 | 4 | X | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Oronite 8515", "epdm": "4", "file": "oronite-8515.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "oronite-8515", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Oronite 8515 | 2 | 4 | 1 | 4 | 4 | 4 | X | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Oronite 8515 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ortho-Chloro Ethyl Benzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ortho-Chloro Ethyl Benzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ortho-Chloro Ethyl Benzene", "epdm": "4", "file": "ortho-chloro-ethyl-benzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ortho-chloro-ethyl-benzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ortho-Chloro Ethyl Benzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Ortho-Chloro Ethyl Benzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ortho-Chloroaniline\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ortho-Chloroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ortho-Chloroaniline", "epdm": "1", "file": "ortho-chloroaniline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ortho-chloroaniline", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ortho-Chloroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Ortho-Chloroaniline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ortho-Chlorophenol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ortho-Chlorophenol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ortho-Chlorophenol", "epdm": "1", "file": "ortho-chlorophenol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ortho-chlorophenol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ortho-Chlorophenol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Ortho-Chlorophenol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ortho-Cresol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ortho-Cresol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ortho-Cresol", "epdm": "1", "file": "ortho-cresol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ortho-cresol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ortho-Cresol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Ortho-Cresol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ortho-Dichlorobenzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ortho-Dichlorobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ortho-Dichlorobenzene", "epdm": "4", "file": "ortho-dichlorobenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ortho-dichlorobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Ortho-Dichlorobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Ortho-Dichlorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ortho-Nitrotoluene\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ortho-Nitrotoluene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ortho-Nitrotoluene", "epdm": "1", "file": "ortho-nitrotoluene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ortho-nitrotoluene", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ortho-Nitrotoluene | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Ortho-Nitrotoluene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Orthophos Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Orthophos Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Orthophos Acid", "epdm": "X", "file": "orthophos-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "orthophos-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Orthophos Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Orthophos Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** OS 45 Type III (OS45)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> OS 45 Type III (OS45) | 2 | 4 | 1 | 4 | 4 | 4 | X | 2 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "OS 45 Type III (OS45)", "epdm": "4", "file": "os-45-type-iii-os45.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "os-45-type-iii-os45", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "OS 45 Type III (OS45) | 2 | 4 | 1 | 4 | 4 | 4 | X | 2 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "OS 45 Type III (OS45) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** OS 45 Type IV (OS45-1)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> OS 45 Type IV (OS45-1) | 2 | 4 | 1 | 4 | 4 | 4 | X | 2 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "OS 45 Type IV (OS45-1)", "epdm": "4", "file": "os-45-type-iv-os45-1.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "os-45-type-iv-os45-1", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "OS 45 Type IV (OS45-1) | 2 | 4 | 1 | 4 | 4 | 4 | X | 2 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "OS 45 Type IV (OS45-1) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** OS 70\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> OS 70 | 2 | 4 | 1 | 4 | 4 | 4 | X | 2 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "OS 70", "epdm": "4", "file": "os-70.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "os-70", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "OS 70 | 2 | 4 | 1 | 4 | 4 | 4 | X | 2 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "OS 70 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Oxalic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Oxalic Acid | 2 | 1 | 2 | 2 | 2 | 1 | X | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Oxalic Acid", "epdm": "1", "file": "oxalic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "oxalic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Oxalic Acid | 2 | 1 | 2 | 2 | 2 | 1 | X | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Oxalic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Oxygen, 200\u00b0-300\u00b0F (Evalute for specific applications)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Oxygen, 200\u00b0-300\u00b0F (Evalute for specific applications) | 4 | 4 | X | X | X | X | X | X | 2 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Oxygen, 200\u00b0-300\u00b0F (Evalute for specific applications)", "epdm": "4", "file": "oxygen-200-300-f-evalute-for-specific-applications.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "oxygen-200-300-f-evalute-for-specific-applications", "kalrez": "1", "neoprene": "X", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Oxygen, 200\u00b0-300\u00b0F (Evalute for specific applications) | 4 | 4 | X | X | X | X | X | X | 2 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Oxygen, 200\u00b0-300\u00b0F (Evalute for specific applications) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Oxygen, 300\u00b0-400\u00b0F (Evalute for specific applications)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Oxygen, 300\u00b0-400\u00b0F (Evalute for specific applications) | 4 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 2 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Oxygen, 300\u00b0-400\u00b0F (Evalute for specific applications)", "epdm": "4", "file": "oxygen-300-400-f-evalute-for-specific-applications.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "oxygen-300-400-f-evalute-for-specific-applications", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Oxygen, 300\u00b0-400\u00b0F (Evalute for specific applications) | 4 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 2 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Oxygen, 300\u00b0-400\u00b0F (Evalute for specific applications) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Oxygen, Cold (Evalute for specific applications)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Oxygen, Cold (Evalute for specific applications) | 2 | 1 | 1 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Oxygen, Cold (Evalute for specific applications)", "epdm": "1", "file": "oxygen-cold-evalute-for-specific-applications.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "oxygen-cold-evalute-for-specific-applications", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Oxygen, Cold (Evalute for specific applications) | 2 | 1 | 1 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Oxygen, Cold (Evalute for specific applications) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "4", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Oxygen, Liquid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 4\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Oxygen, Liquid | 4 | 4 | 4 | X | X | X | X | X | 4 | X | X | 4 | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Oxygen, Liquid", "epdm": "4", "file": "oxygen-liquid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "oxygen-liquid", "kalrez": "2", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Oxygen, Liquid | 4 | 4 | 4 | X | X | X | X | X | 4 | X | X | 4 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Oxygen, Liquid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ozonated Deionized Water\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ozonated Deionized Water | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Ozonated Deionized Water", "epdm": "1", "file": "ozonated-deionized-water.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ozonated-deionized-water", "kalrez": "2", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Ozonated Deionized Water | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Ozonated Deionized Water \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ozone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ozone | 4 | 1 | 2 | 4 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Ozone", "epdm": "1", "file": "ozone.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ozone", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Ozone | 4 | 1 | 2 | 4 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Ozone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Paint Thinner, Duco\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Paint Thinner, Duco | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Paint Thinner, Duco", "epdm": "4", "file": "paint-thinner-duco.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "paint-thinner-duco", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Paint Thinner, Duco | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Paint Thinner, Duco \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Palmitic Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Palmitic Acid | 1 | 2 | 2 | 2 | 4 | 2 | X | 3 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Palmitic Acid", "epdm": "2", "file": "palmitic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "palmitic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Palmitic Acid | 1 | 2 | 2 | 2 | 4 | 2 | X | 3 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Palmitic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Par-al-Ketone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Par-al-Ketone | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | X |\n\nSource: \n", "butyl": "4", "chemical": "Par-al-Ketone", "epdm": "4", "file": "par-al-ketone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "par-al-ketone", "kalrez": "X", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Par-al-Ketone | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Par-al-Ketone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Para-Aminobenzoic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Para-Aminobenzoic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Para-Aminobenzoic Acid", "epdm": "1", "file": "para-aminobenzoic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "para-aminobenzoic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Para-Aminobenzoic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Para-Aminobenzoic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Para-Aminosalicylic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Para-Aminosalicylic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Para-Aminosalicylic Acid", "epdm": "1", "file": "para-aminosalicylic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "para-aminosalicylic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Para-Aminosalicylic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Para-Aminosalicylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Para-Bromobenzylphenyl Ether\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Para-Bromobenzylphenyl Ether | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Para-Bromobenzylphenyl Ether", "epdm": "X", "file": "para-bromobenzylphenyl-ether.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "para-bromobenzylphenyl-ether", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Para-Bromobenzylphenyl Ether | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Para-Bromobenzylphenyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Para-Chlorophenol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Para-Chlorophenol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Para-Chlorophenol", "epdm": "1", "file": "para-chlorophenol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "para-chlorophenol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Para-Chlorophenol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Para-Chlorophenol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Para-Dichlorobenzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Para-Dichlorobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Para-Dichlorobenzene", "epdm": "4", "file": "para-dichlorobenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "para-dichlorobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Para-Dichlorobenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Para-Dichlorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Para-Formaldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Para-Formaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Para-Formaldehyde", "epdm": "1", "file": "para-formaldehyde.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "para-formaldehyde", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Para-Formaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Para-Formaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Para-Nitroaniline\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Para-Nitroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Para-Nitroaniline", "epdm": "1", "file": "para-nitroaniline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "para-nitroaniline", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Para-Nitroaniline | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Para-Nitroaniline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Para-Nitrobenzoic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Para-Nitrobenzoic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Para-Nitrobenzoic Acid", "epdm": "1", "file": "para-nitrobenzoic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "para-nitrobenzoic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Para-Nitrobenzoic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Para-Nitrobenzoic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Para-Nitrophenol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Para-Nitrophenol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Para-Nitrophenol", "epdm": "1", "file": "para-nitrophenol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "para-nitrophenol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Para-Nitrophenol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Para-Nitrophenol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Para-Toluene Sulfonic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Para-Toluene Sulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Para-Toluene Sulfonic Acid", "epdm": "1", "file": "para-toluene-sulfonic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "para-toluene-sulfonic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Para-Toluene Sulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Para-Toluene Sulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Paracymene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Paracymene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Paracymene", "epdm": "X", "file": "paracymene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "paracymene", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Paracymene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-4"], "stale_after": "2028-08-11", "title": "Paracymene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Paraffins\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Paraffins | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Paraffins", "epdm": "4", "file": "paraffins.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "paraffins", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Paraffins | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Paraffins \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Paraldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Paraldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Paraldehyde", "epdm": "1", "file": "paraldehyde.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "paraldehyde", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Paraldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Paraldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Parathion\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Parathion | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Parathion", "epdm": "X", "file": "parathion.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "parathion", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Parathion | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Parathion \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Parker O Lube\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Parker O Lube | 1 | 4 | 1 | 2 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Parker O Lube", "epdm": "4", "file": "parker-o-lube.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "parker-o-lube", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Parker O Lube | 1 | 4 | 1 | 2 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Parker O Lube \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Peanut Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Peanut Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Peanut Oil", "epdm": "3", "file": "peanut-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "peanut-oil", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Peanut Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Peanut Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pectin (Liquor)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pectin (Liquor) | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pectin (Liquor)", "epdm": "X", "file": "pectin-liquor.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pectin-liquor", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Pectin (Liquor) | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pectin (Liquor) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pelagonic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pelagonic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Pelagonic Acid", "epdm": "X", "file": "pelagonic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "pelagonic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Pelagonic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pelagonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Penicillin (Liquid)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Penicillin (Liquid) | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Penicillin (Liquid)", "epdm": "X", "file": "penicillin-liquid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "penicillin-liquid", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Penicillin (Liquid) | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Penicillin (Liquid) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pentachloroethane\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pentachloroethane | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pentachloroethane", "epdm": "X", "file": "pentachloroethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pentachloroethane", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Pentachloroethane | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pentachloroethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pentachlorophenol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pentachlorophenol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pentachlorophenol", "epdm": "1", "file": "pentachlorophenol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "pentachlorophenol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Pentachlorophenol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pentachlorophenol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pentaerythritol Tetranitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pentaerythritol Tetranitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pentaerythritol Tetranitrate", "epdm": "1", "file": "pentaerythritol-tetranitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "pentaerythritol-tetranitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Pentaerythritol Tetranitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pentaerythritol Tetranitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pentaerythritol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pentaerythritol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pentaerythritol", "epdm": "1", "file": "pentaerythritol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "pentaerythritol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Pentaerythritol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pentaerythritol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pentafluoroethane (F-125)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pentafluoroethane (F-125) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Pentafluoroethane (F-125)", "epdm": "X", "file": "pentafluoroethane-f-125.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "pentafluoroethane-f-125", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Pentafluoroethane (F-125) | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pentafluoroethane (F-125) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pentane, 2-4 dimethyl\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pentane, 2-4 dimethyl | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pentane, 2-4 dimethyl", "epdm": "4", "file": "pentane-2-4-dimethyl.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "pentane-2-4-dimethyl", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pentane, 2-4 dimethyl | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pentane, 2-4 dimethyl \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pentane, 2 Methyl\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pentane, 2 Methyl | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pentane, 2 Methyl", "epdm": "4", "file": "pentane-2-methyl.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "pentane-2-methyl", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pentane, 2 Methyl | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pentane, 2 Methyl \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pentane, 3-Methyl\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pentane, 3-Methyl | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pentane, 3-Methyl", "epdm": "4", "file": "pentane-3-methyl.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "pentane-3-methyl", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pentane, 3-Methyl | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pentane, 3-Methyl \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pentane or n-Pentane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 3\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pentane or n-Pentane | 1 | 4 | 1 | 3 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pentane or n-Pentane", "epdm": "4", "file": "pentane-or-n-pentane.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "pentane-or-n-pentane", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "4", "source_quote": "Pentane or n-Pentane | 1 | 4 | 1 | 3 | 4 | 4 | 1 | 2 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pentane or n-Pentane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pentoxone\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pentoxone | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Pentoxone", "epdm": "X", "file": "pentoxone.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "pentoxone", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Pentoxone | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pentoxone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pentyl Pentanoate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pentyl Pentanoate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pentyl Pentanoate", "epdm": "4", "file": "pentyl-pentanoate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "pentyl-pentanoate", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Pentyl Pentanoate | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pentyl Pentanoate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Peracetic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Peracetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Peracetic Acid", "epdm": "1", "file": "peracetic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "peracetic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Peracetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Peracetic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Perchloric Acid - 2N\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Perchloric Acid - 2N | 4 | 1 | 2 | 4 | 2 | 2 | 4 | 2 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Perchloric Acid - 2N", "epdm": "1", "file": "perchloric-acid-2n.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "perchloric-acid-2n", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Perchloric Acid - 2N | 4 | 1 | 2 | 4 | 2 | 2 | 4 | 2 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Perchloric Acid - 2N \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Perchloroethylene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Perchloroethylene | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Perchloroethylene", "epdm": "4", "file": "perchloroethylene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "perchloroethylene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Perchloroethylene | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Perchloroethylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Perfluoropropane\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Perfluoropropane | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Perfluoropropane", "epdm": "X", "file": "perfluoropropane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "perfluoropropane", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Perfluoropropane | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Perfluoropropane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Perfluorotriethylamine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Perfluorotriethylamine | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Perfluorotriethylamine", "epdm": "X", "file": "perfluorotriethylamine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "perfluorotriethylamine", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Perfluorotriethylamine | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Perfluorotriethylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Permanganic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Permanganic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Permanganic Acid", "epdm": "X", "file": "permanganic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "permanganic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Permanganic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Permanganic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Persulfuric Acid (Caro\u2019s Acid)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Persulfuric Acid (Caro\u2019s Acid) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Persulfuric Acid (Caro\u2019s Acid)", "epdm": "X", "file": "persulfuric-acid-caro-s-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "persulfuric-acid-caro-s-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Persulfuric Acid (Caro\u2019s Acid) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Persulfuric Acid (Caro\u2019s Acid) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Petrolatum Ether\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Petrolatum Ether | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Petrolatum Ether", "epdm": "4", "file": "petrolatum-ether.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "petrolatum-ether", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Petrolatum Ether | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Petrolatum Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Petrolatum\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Petrolatum | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Petrolatum", "epdm": "4", "file": "petrolatum.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "petrolatum", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Petrolatum | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Petrolatum \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Petroleum Oil, Above 250\u00b0F\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Petroleum Oil, Above 250\u00b0F | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Petroleum Oil, Above 250\u00b0F", "epdm": "4", "file": "petroleum-oil-above-250-f.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "petroleum-oil-above-250-f", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Petroleum Oil, Above 250\u00b0F | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Petroleum Oil, Above 250\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Petroleum Oil, Below 250\u00b0F\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Petroleum Oil, Below 250\u00b0F | 1 | 4 | 2 | 4 | 2 | 4 | 2 | 2 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Petroleum Oil, Below 250\u00b0F", "epdm": "4", "file": "petroleum-oil-below-250-f.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "petroleum-oil-below-250-f", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Petroleum Oil, Below 250\u00b0F | 1 | 4 | 2 | 4 | 2 | 4 | 2 | 2 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Petroleum Oil, Below 250\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Petroleum Oil, Crude\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Petroleum Oil, Crude | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Petroleum Oil, Crude", "epdm": "4", "file": "petroleum-oil-crude.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "petroleum-oil-crude", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Petroleum Oil, Crude | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Petroleum Oil, Crude \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenol, 70% / 30% H2O\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenol, 70% / 30% H2O | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Phenol, 70% / 30% H2O", "epdm": "4", "file": "phenol-70-30-h2o.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "phenol-70-30-h2o", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Phenol, 70% / 30% H2O | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenol, 70% / 30% H2O \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenol, 85% / 15% H2O\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenol, 85% / 15% H2O | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Phenol, 85% / 15% H2O", "epdm": "4", "file": "phenol-85-15-h2o.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "phenol-85-15-h2o", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Phenol, 85% / 15% H2O | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenol, 85% / 15% H2O \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenol | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Phenol", "epdm": "4", "file": "phenol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "phenol", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Phenol | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenolic Sulfonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenolic Sulfonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phenolic Sulfonate", "epdm": "1", "file": "phenolic-sulfonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phenolic-sulfonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Phenolic Sulfonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenolic Sulfonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenolsulfonic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenolsulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phenolsulfonic Acid", "epdm": "1", "file": "phenolsulfonic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phenolsulfonic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Phenolsulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenolsulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylacetamide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylacetamide | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Phenylacetamide", "epdm": "X", "file": "phenylacetamide.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "phenylacetamide", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Phenylacetamide | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylacetamide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylacetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phenylacetate", "epdm": "1", "file": "phenylacetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phenylacetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Phenylacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylacetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylacetic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phenylacetic Acid", "epdm": "1", "file": "phenylacetic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phenylacetic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Phenylacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylacetic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylbenzene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylbenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Phenylbenzene", "epdm": "4", "file": "phenylbenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "phenylbenzene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Phenylbenzene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylbenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylene Diamine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylene Diamine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Phenylene Diamine", "epdm": "X", "file": "phenylene-diamine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "phenylene-diamine", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Phenylene Diamine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylene Diamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylethyl Alcohol\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylethyl Alcohol | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Phenylethyl Alcohol", "epdm": "X", "file": "phenylethyl-alcohol.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "phenylethyl-alcohol", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Phenylethyl Alcohol | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylethyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylethyl Ether\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylethyl Ether | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Phenylethyl Ether", "epdm": "4", "file": "phenylethyl-ether.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "phenylethyl-ether", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Phenylethyl Ether | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylethyl Ether \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylethyl Malonic Ester\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylethyl Malonic Ester | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Phenylethyl Malonic Ester", "epdm": "X", "file": "phenylethyl-malonic-ester.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "phenylethyl-malonic-ester", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Phenylethyl Malonic Ester | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylethyl Malonic Ester \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylglycerine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylglycerine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phenylglycerine", "epdm": "1", "file": "phenylglycerine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phenylglycerine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Phenylglycerine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylglycerine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylhydrazine Hydrochloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylhydrazine Hydrochloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phenylhydrazine Hydrochloride", "epdm": "1", "file": "phenylhydrazine-hydrochloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phenylhydrazine-hydrochloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Phenylhydrazine Hydrochloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylhydrazine Hydrochloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylhydrazine\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylhydrazine | 4 | 2 | 4 | 2 | X | 4 | 4 | 4 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Phenylhydrazine", "epdm": "2", "file": "phenylhydrazine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "phenylhydrazine", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Phenylhydrazine | 4 | 2 | 4 | 2 | X | 4 | 4 | 4 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylhydrazine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phenylmercuric Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phenylmercuric Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phenylmercuric Acetate", "epdm": "1", "file": "phenylmercuric-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phenylmercuric-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Phenylmercuric Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phenylmercuric Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phorone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phorone | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Phorone", "epdm": "3", "file": "phorone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "phorone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Phorone | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phorone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phosgene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phosgene | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Phosgene", "epdm": "X", "file": "phosgene.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "phosgene", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Phosgene | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phosgene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phosphine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phosphine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Phosphine", "epdm": "X", "file": "phosphine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "phosphine", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Phosphine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phosphine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phosphoric Acid, 20%\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phosphoric Acid, 20% | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Phosphoric Acid, 20%", "epdm": "X", "file": "phosphoric-acid-20.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "phosphoric-acid-20", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Phosphoric Acid, 20% | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phosphoric Acid, 20% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phosphoric Acid 3 Molar to 158\u00b0F\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phosphoric Acid 3 Molar to 158\u00b0F | 1 | 1 | 2 | 2 | 2 | 1 | 3 | 1 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phosphoric Acid 3 Molar to 158\u00b0F", "epdm": "1", "file": "phosphoric-acid-3-molar-to-158-f.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phosphoric-acid-3-molar-to-158-f", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "3", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Phosphoric Acid 3 Molar to 158\u00b0F | 1 | 1 | 2 | 2 | 2 | 1 | 3 | 1 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phosphoric Acid 3 Molar to 158\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phosphoric Acid, 45%\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phosphoric Acid, 45% | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Phosphoric Acid, 45%", "epdm": "X", "file": "phosphoric-acid-45.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "phosphoric-acid-45", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Phosphoric Acid, 45% | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phosphoric Acid, 45% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phosphoric Acid Concentrated Room Temp\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phosphoric Acid Concentrated Room Temp | 2 | 1 | 2 | 1 | 3 | 1 | 2 | 1 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phosphoric Acid Concentrated Room Temp", "epdm": "1", "file": "phosphoric-acid-concentrated-room-temp.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phosphoric-acid-concentrated-room-temp", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Phosphoric Acid Concentrated Room Temp | 2 | 1 | 2 | 1 | 3 | 1 | 2 | 1 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phosphoric Acid Concentrated Room Temp \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phosphoric Acid Concentrated to 158\u00b0F\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 3\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phosphoric Acid Concentrated to 158\u00b0F | 4 | 1 | 3 | 2 | 4 | 1 | 3 | 1 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phosphoric Acid Concentrated to 158\u00b0F", "epdm": "1", "file": "phosphoric-acid-concentrated-to-158-f.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phosphoric-acid-concentrated-to-158-f", "kalrez": "1", "neoprene": "3", "nitrile": "4", "polyacrylate": "3", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Phosphoric Acid Concentrated to 158\u00b0F | 4 | 1 | 3 | 2 | 4 | 1 | 3 | 1 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phosphoric Acid Concentrated to 158\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phosphorus (Molten)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phosphorus (Molten) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Phosphorus (Molten)", "epdm": "X", "file": "phosphorus-molten.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "phosphorus-molten", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Phosphorus (Molten) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phosphorus (Molten) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phosphorus Oxychloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phosphorus Oxychloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Phosphorus Oxychloride", "epdm": "X", "file": "phosphorus-oxychloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "phosphorus-oxychloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Phosphorus Oxychloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phosphorus Oxychloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phosphorus Trichloride Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phosphorus Trichloride Acid | 4 | 1 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Phosphorus Trichloride Acid", "epdm": "1", "file": "phosphorus-trichloride-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "phosphorus-trichloride-acid", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Phosphorus Trichloride Acid | 4 | 1 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phosphorus Trichloride Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phosphorus Trichloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phosphorus Trichloride | 4 | 1 | 4 | 4 | X | 1 | X | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phosphorus Trichloride", "epdm": "1", "file": "phosphorus-trichloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "phosphorus-trichloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Phosphorus Trichloride | 4 | 1 | 4 | 4 | X | 1 | X | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phosphorus Trichloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phthalic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phthalic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phthalic Acid", "epdm": "1", "file": "phthalic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phthalic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Phthalic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phthalic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Phthalic Anhydride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Phthalic Anhydride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Phthalic Anhydride", "epdm": "1", "file": "phthalic-anhydride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "phthalic-anhydride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Phthalic Anhydride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Phthalic Anhydride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pickling Solution\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pickling Solution | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 2 | 2 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Pickling Solution", "epdm": "3", "file": "pickling-solution.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "pickling-solution", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pickling Solution | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 2 | 2 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pickling Solution \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Picric Acid (aq)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Picric Acid (aq) | 1 | 1 | 1 | 2 | X | 1 | X | 1 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Picric Acid (aq)", "epdm": "1", "file": "picric-acid-aq.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "picric-acid-aq", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Picric Acid (aq) | 1 | 1 | 1 | 2 | X | 1 | X | 1 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Picric Acid (aq) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Picric Acid Molten\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Picric Acid Molten | 2 | 2 | 2 | 2 | 4 | 2 | X | 2 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Picric Acid Molten", "epdm": "2", "file": "picric-acid-molten.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "picric-acid-molten", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Picric Acid Molten | 2 | 2 | 2 | 2 | 4 | 2 | X | 2 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Picric Acid Molten \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pine Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pine Oil | 1 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pine Oil", "epdm": "4", "file": "pine-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pine-oil", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pine Oil | 1 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pine Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pine Tar\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pine Tar | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pine Tar", "epdm": "4", "file": "pine-tar.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "pine-tar", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Pine Tar | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pine Tar \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pinene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pinene | 2 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pinene", "epdm": "4", "file": "pinene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pinene", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pinene | 2 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pinene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Piperazine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Piperazine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Piperazine", "epdm": "X", "file": "piperazine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "piperazine", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Piperazine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Piperazine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Piperidine\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Piperidine | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Piperidine", "epdm": "4", "file": "piperidine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "piperidine", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Piperidine | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Piperidine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Piranha (H2SO4:H2O2)(70:30)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Piranha (H2SO4:H2O2)(70:30) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Piranha (H2SO4:H2O2)(70:30)", "epdm": "X", "file": "piranha-h2so4-h2o2-70-30.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "piranha-h2so4-h2o2-70-30", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Piranha (H2SO4:H2O2)(70:30) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Piranha (H2SO4:H2O2)(70:30) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Plating Solution (Co,Cu,Au,In,Fe,Pb,Ni,Ag,Sn,Zn)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Plating Solution (Co,Cu,Au,In,Fe,Pb,Ni,Ag,Sn,Zn) | 1 | 1 | X | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Plating Solution (Co,Cu,Au,In,Fe,Pb,Ni,Ag,Sn,Zn)", "epdm": "1", "file": "plating-solution-co-cu-au-in-fe-pb-ni-ag-sn-zn.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "plating-solution-co-cu-au-in-fe-pb-ni-ag-sn-zn", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Plating Solution (Co,Cu,Au,In,Fe,Pb,Ni,Ag,Sn,Zn) | 1 | 1 | X | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Plating Solution (Co,Cu,Au,In,Fe,Pb,Ni,Ag,Sn,Zn) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Plating Solutions Chrome\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Plating Solutions Chrome | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Plating Solutions Chrome", "epdm": "2", "file": "plating-solutions-chrome.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "plating-solutions-chrome", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Plating Solutions Chrome | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Plating Solutions Chrome \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Plating Solutions Others\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Plating Solutions Others | 1 | 1 | 4 | 4 | 4 | 1 | X | 1 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Plating Solutions Others", "epdm": "1", "file": "plating-solutions-others.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "plating-solutions-others", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Plating Solutions Others | 1 | 1 | 4 | 4 | 4 | 1 | X | 1 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Plating Solutions Others \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pneumatic Service\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pneumatic Service | 1 | 1 | 1 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pneumatic Service", "epdm": "1", "file": "pneumatic-service.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "pneumatic-service", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pneumatic Service | 1 | 1 | 1 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pneumatic Service \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Polyethylene Glycol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Polyethylene Glycol | 2 | 1 | 2 | X | X | X | X | X | 3 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Polyethylene Glycol", "epdm": "1", "file": "polyethylene-glycol.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "polyethylene-glycol", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Polyethylene Glycol | 2 | 1 | 2 | X | X | X | X | X | 3 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Polyethylene Glycol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Polyglycerol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Polyglycerol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Polyglycerol", "epdm": "1", "file": "polyglycerol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "polyglycerol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Polyglycerol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Polyglycerol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Polyglycol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Polyglycol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Polyglycol", "epdm": "1", "file": "polyglycol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "polyglycol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Polyglycol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Polyglycol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Polyvinyl Acetate Emulsion\n\n**Nitrile (NBR):** X\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Polyvinyl Acetate Emulsion | X | 1 | 2 | 4 | X | 1 | X | 2 | X | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Polyvinyl Acetate Emulsion", "epdm": "1", "file": "polyvinyl-acetate-emulsion.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "polyvinyl-acetate-emulsion", "kalrez": "1", "neoprene": "2", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Polyvinyl Acetate Emulsion | X | 1 | 2 | 4 | X | 1 | X | 2 | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Polyvinyl Acetate Emulsion \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Acetate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 1 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Acetate", "epdm": "1", "file": "potassium-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-acetate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Potassium Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 1 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Acid Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Acid Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Acid Sulfate", "epdm": "1", "file": "potassium-acid-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-acid-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Acid Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Acid Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Alum\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Alum | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Alum", "epdm": "1", "file": "potassium-alum.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-alum", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Alum | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Alum \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Aluminum Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Aluminum Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Aluminum Sulfate", "epdm": "1", "file": "potassium-aluminum-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-aluminum-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Aluminum Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Aluminum Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Antimonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Antimonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Antimonate", "epdm": "1", "file": "potassium-antimonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-antimonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Antimonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Antimonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Bicarbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Bicarbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Bicarbonate", "epdm": "1", "file": "potassium-bicarbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-bicarbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Bicarbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Bicarbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Bichromate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Bichromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Bichromate", "epdm": "1", "file": "potassium-bichromate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-bichromate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Bichromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Bichromate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Bifluoride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Bifluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Bifluoride", "epdm": "1", "file": "potassium-bifluoride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-bifluoride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Bifluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Bifluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Bisulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Bisulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Bisulfate", "epdm": "1", "file": "potassium-bisulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-bisulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Bisulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Bisulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Bisulfite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Bisulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Bisulfite", "epdm": "1", "file": "potassium-bisulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-bisulfite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Bisulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Bisulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Bitartrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Bitartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Bitartrate", "epdm": "1", "file": "potassium-bitartrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-bitartrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Bitartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Bitartrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Bromide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Bromide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Bromide", "epdm": "1", "file": "potassium-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-bromide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Bromide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Carbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Carbonate", "epdm": "1", "file": "potassium-carbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Chlorate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Chlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Chlorate", "epdm": "1", "file": "potassium-chlorate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-chlorate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Chlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Chlorate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Chloride", "epdm": "1", "file": "potassium-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Potassium Chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Chromates\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Chromates | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Chromates", "epdm": "1", "file": "potassium-chromates.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-chromates", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Chromates | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Chromates \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Citrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Citrate", "epdm": "1", "file": "potassium-citrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-citrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Citrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Cupro Cyanide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Cupro Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Cupro Cyanide", "epdm": "1", "file": "potassium-cupro-cyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-cupro-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Potassium Cupro Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Cupro Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Cyanate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Cyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Cyanate", "epdm": "1", "file": "potassium-cyanate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-cyanate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Cyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Cyanate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Cyanide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Cyanide", "epdm": "1", "file": "potassium-cyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Potassium Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Dichromate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Dichromate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Dichromate", "epdm": "1", "file": "potassium-dichromate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-dichromate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Potassium Dichromate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Dichromate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Diphosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Diphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Diphosphate", "epdm": "1", "file": "potassium-diphosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-diphosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Diphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Diphosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Ferricyanide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Ferricyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Ferricyanide", "epdm": "1", "file": "potassium-ferricyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-ferricyanide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Ferricyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Ferricyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Fluoride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Fluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Fluoride", "epdm": "1", "file": "potassium-fluoride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-fluoride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Fluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Glucocyanate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Glucocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Glucocyanate", "epdm": "1", "file": "potassium-glucocyanate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-glucocyanate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Glucocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Glucocyanate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Hydroxide 50%\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Hydroxide 50% | 2 | 1 | 2 | 2 | 3 | 1 | 4 | 1 | 4 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Hydroxide 50%", "epdm": "1", "file": "potassium-hydroxide-50.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-hydroxide-50", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "3", "source_quote": "Potassium Hydroxide 50% | 2 | 1 | 2 | 2 | 3 | 1 | 4 | 1 | 4 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Hydroxide 50% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Hypochlorite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Hypochlorite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Hypochlorite", "epdm": "1", "file": "potassium-hypochlorite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-hypochlorite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Hypochlorite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Hypochlorite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Iodate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Iodate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Iodate", "epdm": "1", "file": "potassium-iodate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-iodate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Iodate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Iodate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Iodide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Iodide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Iodide", "epdm": "1", "file": "potassium-iodide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-iodide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Iodide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Iodide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Metabisulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Metabisulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Metabisulfate", "epdm": "1", "file": "potassium-metabisulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-metabisulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Metabisulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Metabisulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Metachromate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Metachromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Metachromate", "epdm": "1", "file": "potassium-metachromate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-metachromate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Metachromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Metachromate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Metasilicate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Metasilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Potassium Metasilicate", "epdm": "X", "file": "potassium-metasilicate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "potassium-metasilicate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Potassium Metasilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Metasilicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium (Molten)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 4\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium (Molten) | X | X | X | X | X | X | X | X | X | X | X | X | 4 |\n\nSource: \n", "butyl": "X", "chemical": "Potassium (Molten)", "epdm": "X", "file": "potassium-molten.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "potassium-molten", "kalrez": "4", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Potassium (Molten) | X | X | X | X | X | X | X | X | X | X | X | X | 4 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium (Molten) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Monochromate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Monochromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Monochromate", "epdm": "1", "file": "potassium-monochromate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-monochromate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Monochromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Monochromate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Nitrate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Nitrate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Nitrate", "epdm": "1", "file": "potassium-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Potassium Nitrate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Nitrite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Nitrite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Nitrite", "epdm": "1", "file": "potassium-nitrite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-nitrite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Nitrite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Nitrite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Oxalate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Oxalate", "epdm": "1", "file": "potassium-oxalate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-oxalate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Oxalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Perchlorate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Perchlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Perchlorate", "epdm": "1", "file": "potassium-perchlorate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-perchlorate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Perchlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Perchlorate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Perfluoro Acetate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Perfluoro Acetate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Potassium Perfluoro Acetate", "epdm": "X", "file": "potassium-perfluoro-acetate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "potassium-perfluoro-acetate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Potassium Perfluoro Acetate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Perfluoro Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Permanganate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Permanganate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Permanganate", "epdm": "1", "file": "potassium-permanganate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-permanganate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Permanganate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Permanganate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Peroxide\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Peroxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Potassium Peroxide", "epdm": "X", "file": "potassium-peroxide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "potassium-peroxide", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Potassium Peroxide | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Peroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Persulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Persulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Persulfate", "epdm": "1", "file": "potassium-persulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-persulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Persulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Persulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Phosphate (Acid)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Phosphate (Acid) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Phosphate (Acid)", "epdm": "1", "file": "potassium-phosphate-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-phosphate-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Phosphate (Acid) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Phosphate (Acid) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Phosphate (Alkaline)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Phosphate (Alkaline) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Phosphate (Alkaline)", "epdm": "1", "file": "potassium-phosphate-alkaline.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-phosphate-alkaline", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Phosphate (Alkaline) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Phosphate (Alkaline) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Phosphate (Di/Tri Basic)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Phosphate (Di/Tri Basic) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Phosphate (Di/Tri Basic)", "epdm": "1", "file": "potassium-phosphate-di-tri-basic.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-phosphate-di-tri-basic", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Phosphate (Di/Tri Basic) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Phosphate (Di/Tri Basic) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Pyrosulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Pyrosulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Pyrosulfate", "epdm": "1", "file": "potassium-pyrosulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-pyrosulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Pyrosulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Pyrosulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Salts\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Salts | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Salts", "epdm": "1", "file": "potassium-salts.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-salts", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Potassium Salts | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Salts \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Silicate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Silicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Potassium Silicate", "epdm": "X", "file": "potassium-silicate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "potassium-silicate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Potassium Silicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Silicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Sodium Tartrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Sodium Tartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Sodium Tartrate", "epdm": "1", "file": "potassium-sodium-tartrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-sodium-tartrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Sodium Tartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Sodium Tartrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Stannate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Stannate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Stannate", "epdm": "1", "file": "potassium-stannate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-stannate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Stannate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Stannate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Stearate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Stearate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Stearate", "epdm": "1", "file": "potassium-stearate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-stearate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Stearate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Stearate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Sulfate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Sulfate", "epdm": "1", "file": "potassium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "potassium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Potassium Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Sulfide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Sulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Sulfide", "epdm": "1", "file": "potassium-sulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-sulfide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Sulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Sulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Sulfite\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Sulfite | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Sulfite", "epdm": "1", "file": "potassium-sulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "potassium-sulfite", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Potassium Sulfite | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Sulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Tartrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Tartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Tartrate", "epdm": "1", "file": "potassium-tartrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-tartrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Tartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Tartrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Thiocyanate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Thiocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Thiocyanate", "epdm": "1", "file": "potassium-thiocyanate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-thiocyanate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Thiocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Thiocyanate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Thiosulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Thiosulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Thiosulfate", "epdm": "1", "file": "potassium-thiosulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-thiosulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Thiosulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Thiosulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Potassium Triphosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Potassium Triphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Potassium Triphosphate", "epdm": "1", "file": "potassium-triphosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "potassium-triphosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Potassium Triphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Potassium Triphosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Prestone Antifreeze\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Prestone Antifreeze | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Prestone Antifreeze", "epdm": "1", "file": "prestone-antifreeze.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "prestone-antifreeze", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Prestone Antifreeze | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Prestone Antifreeze \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** PRL-High Temp. Hydr. Oil\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> PRL-High Temp. Hydr. Oil | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "PRL-High Temp. Hydr. Oil", "epdm": "4", "file": "prl-high-temp-hydr-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "prl-high-temp-hydr-oil", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "PRL-High Temp. Hydr. Oil | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "PRL-High Temp. Hydr. Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Producer Gas\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Producer Gas | 1 | 4 | 2 | 4 | 2 | 4 | 2 | 2 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Producer Gas", "epdm": "4", "file": "producer-gas.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "producer-gas", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Producer Gas | 1 | 4 | 2 | 4 | 2 | 4 | 2 | 2 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Producer Gas \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Propane", "epdm": "4", "file": "propane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "propane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Propane | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propionaldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propionaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Propionaldehyde", "epdm": "1", "file": "propionaldehyde.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "propionaldehyde", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Propionaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propionaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propionic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propionic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Propionic Acid", "epdm": "1", "file": "propionic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "propionic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Propionic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propionic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propionitrile\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propionitrile | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Propionitrile", "epdm": "4", "file": "propionitrile.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "propionitrile", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Propionitrile | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propionitrile \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propyl Acetate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propyl Acetate | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Propyl Acetate", "epdm": "2", "file": "propyl-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "propyl-acetate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Propyl Acetate | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propyl Acetone or n-Propyl Acetone\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propyl Acetone or n-Propyl Acetone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Propyl Acetone or n-Propyl Acetone", "epdm": "1", "file": "propyl-acetone-or-n-propyl-acetone.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "propyl-acetone-or-n-propyl-acetone", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Propyl Acetone or n-Propyl Acetone | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propyl Acetone or n-Propyl Acetone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propyl Alcohol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propyl Alcohol | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Propyl Alcohol", "epdm": "1", "file": "propyl-alcohol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "propyl-alcohol", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Propyl Alcohol | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propyl Nitrate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propyl Nitrate | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Propyl Nitrate", "epdm": "2", "file": "propyl-nitrate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "propyl-nitrate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Propyl Nitrate | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propyl Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propyl Propionate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propyl Propionate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Propyl Propionate", "epdm": "1", "file": "propyl-propionate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "propyl-propionate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Propyl Propionate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propyl Propionate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propylamine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Propylamine", "epdm": "1", "file": "propylamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "propylamine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Propylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propylbenzene\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propylbenzene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Propylbenzene", "epdm": "X", "file": "propylbenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "propylbenzene", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Propylbenzene | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propylbenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propylene Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propylene Chloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Propylene Chloride", "epdm": "X", "file": "propylene-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "propylene-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Propylene Chloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propylene Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propylene Chlorohydrin\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propylene Chlorohydrin | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Propylene Chlorohydrin", "epdm": "X", "file": "propylene-chlorohydrin.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "propylene-chlorohydrin", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Propylene Chlorohydrin | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propylene Chlorohydrin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propylene Dichloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propylene Dichloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Propylene Dichloride", "epdm": "X", "file": "propylene-dichloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "propylene-dichloride", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Propylene Dichloride | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propylene Dichloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propylene Glycol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propylene Glycol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Propylene Glycol", "epdm": "1", "file": "propylene-glycol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "propylene-glycol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Propylene Glycol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propylene Glycol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propylene Imine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propylene Imine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Propylene Imine", "epdm": "X", "file": "propylene-imine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "propylene-imine", "kalrez": "1", "neoprene": "4", "nitrile": "X", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Propylene Imine | X | X | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propylene Imine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propylene Oxide\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propylene Oxide | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Propylene Oxide", "epdm": "2", "file": "propylene-oxide.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "propylene-oxide", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Propylene Oxide | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propylene Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Propylene\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Propylene | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Propylene", "epdm": "4", "file": "propylene.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "propylene", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Propylene | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Propylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pydraul, 10E\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pydraul, 10E | 4 | 1 | 4 | 4 | 1 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pydraul, 10E", "epdm": "1", "file": "pydraul-10e.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pydraul-10e", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Pydraul, 10E | 4 | 1 | 4 | 4 | 1 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pydraul, 10E \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pydraul, 115E\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pydraul, 115E | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pydraul, 115E", "epdm": "1", "file": "pydraul-115e.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pydraul-115e", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pydraul, 115E | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pydraul, 115E \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pydraul, 230C, 312C, 540C, A200\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pydraul, 230C, 312C, 540C, A200 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pydraul, 230C, 312C, 540C, A200", "epdm": "4", "file": "pydraul-230c-312c-540c-a200.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pydraul-230c-312c-540c-a200", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pydraul, 230C, 312C, 540C, A200 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pydraul, 230C, 312C, 540C, A200 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pydraul, 29ELT 30E, 50E, 65E\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pydraul, 29ELT 30E, 50E, 65E | 4 | 1 | 4 | 4 | 1 | 1 | 4 | 4 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pydraul, 29ELT 30E, 50E, 65E", "epdm": "1", "file": "pydraul-29elt-30e-50e-65e.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pydraul-29elt-30e-50e-65e", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Pydraul, 29ELT 30E, 50E, 65E | 4 | 1 | 4 | 4 | 1 | 1 | 4 | 4 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pydraul, 29ELT 30E, 50E, 65E \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pydraul 90e\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pydraul 90e | 4 | 1 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Pydraul 90e", "epdm": "1", "file": "pydraul-90e.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "pydraul-90e", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Pydraul 90e | 4 | 1 | 4 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pydraul 90e \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyranol Transformer Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyranol Transformer Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pyranol Transformer Oil", "epdm": "4", "file": "pyranol-transformer-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "pyranol-transformer-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pyranol Transformer Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyranol Transformer Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyridine Oil\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyridine Oil | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Pyridine Oil", "epdm": "2", "file": "pyridine-oil.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pyridine-oil", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pyridine Oil | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyridine Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyridine Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyridine Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pyridine Sulfate", "epdm": "1", "file": "pyridine-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "pyridine-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Pyridine Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyridine Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyridine Sulfonic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyridine Sulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pyridine Sulfonic Acid", "epdm": "1", "file": "pyridine-sulfonic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "pyridine-sulfonic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Pyridine Sulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyridine Sulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyridine\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyridine | 4 | 2 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pyridine", "epdm": "2", "file": "pyridine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pyridine", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Pyridine | 4 | 2 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyridine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyrogallol (Pyrogallic Acid)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyrogallol (Pyrogallic Acid) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pyrogallol (Pyrogallic Acid)", "epdm": "4", "file": "pyrogallol-pyrogallic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pyrogallol-pyrogallic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Pyrogallol (Pyrogallic Acid) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyrogallol (Pyrogallic Acid) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "2", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyrogard 42, 43, 55\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 2\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyrogard 42, 43, 55 | 4 | 1 | 4 | X | X | X | X | X | 1 | X | X | 2 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Pyrogard 42, 43, 55", "epdm": "1", "file": "pyrogard-42-43-55.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "pyrogard-42-43-55", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Pyrogard 42, 43, 55 | 4 | 1 | 4 | X | X | X | X | X | 1 | X | X | 2 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyrogard 42, 43, 55 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyrogard 53, Mobil Phosphate Ester\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyrogard 53, Mobil Phosphate Ester | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 1 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pyrogard 53, Mobil Phosphate Ester", "epdm": "1", "file": "pyrogard-53-mobil-phosphate-ester.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pyrogard-53-mobil-phosphate-ester", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Pyrogard 53, Mobil Phosphate Ester | 4 | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 1 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyrogard 53, Mobil Phosphate Ester \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyrogard D, Mobil Water-in-Oil Emulsion\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyrogard D, Mobil Water-in-Oil Emulsion | 1 | 4 | 2 | 4 | 3 | 4 | X | 1 | 4 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pyrogard D, Mobil Water-in-Oil Emulsion", "epdm": "4", "file": "pyrogard-d-mobil-water-in-oil-emulsion.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "pyrogard-d-mobil-water-in-oil-emulsion", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Pyrogard D, Mobil Water-in-Oil Emulsion | 1 | 4 | 2 | 4 | 3 | 4 | X | 1 | 4 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyrogard D, Mobil Water-in-Oil Emulsion \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyroligneous Acid\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyroligneous Acid | 4 | 2 | 2 | 4 | X | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Pyroligneous Acid", "epdm": "2", "file": "pyroligneous-acid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "pyroligneous-acid", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Pyroligneous Acid | 4 | 2 | 2 | 4 | X | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyroligneous Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyrolube\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyrolube | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Pyrolube", "epdm": "2", "file": "pyrolube.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pyrolube", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Pyrolube | 4 | 2 | 4 | 4 | 2 | 2 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyrolube \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyrosulfuric Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyrosulfuric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pyrosulfuric Acid", "epdm": "1", "file": "pyrosulfuric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "pyrosulfuric-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Pyrosulfuric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyrosulfuric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyrosulfuryl Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyrosulfuryl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pyrosulfuryl Chloride", "epdm": "4", "file": "pyrosulfuryl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "pyrosulfuryl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Pyrosulfuryl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyrosulfuryl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyrrole\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyrrole | 4 | 4 | 4 | 2 | 2 | 4 | 4 | 2 | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Pyrrole", "epdm": "4", "file": "pyrrole.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "pyrrole", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Pyrrole | 4 | 4 | 4 | 2 | 2 | 4 | 4 | 2 | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyrrole \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Pyruvic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Pyruvic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Pyruvic Acid", "epdm": "1", "file": "pyruvic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "pyruvic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Pyruvic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Pyruvic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Quinidine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Quinidine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Quinidine", "epdm": "4", "file": "quinidine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "quinidine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Quinidine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Quinidine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Quinine Bisulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Quinine Bisulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Quinine Bisulfate", "epdm": "1", "file": "quinine-bisulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "quinine-bisulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Quinine Bisulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Quinine Bisulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Quinine Hydrochloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Quinine Hydrochloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Quinine Hydrochloride", "epdm": "1", "file": "quinine-hydrochloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "quinine-hydrochloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Quinine Hydrochloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Quinine Hydrochloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Quinine Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Quinine Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Quinine Sulfate", "epdm": "1", "file": "quinine-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "quinine-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Quinine Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Quinine Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Quinine Tartrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Quinine Tartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Quinine Tartrate", "epdm": "1", "file": "quinine-tartrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "quinine-tartrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Quinine Tartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Quinine Tartrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Quinine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Quinine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Quinine", "epdm": "4", "file": "quinine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "quinine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Quinine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Quinine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Quinizarin\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Quinizarin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Quinizarin", "epdm": "4", "file": "quinizarin.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "quinizarin", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Quinizarin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Quinizarin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Quinoline\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Quinoline | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Quinoline", "epdm": "4", "file": "quinoline.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "quinoline", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Quinoline | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Quinoline \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Quinone\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Quinone | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Quinone", "epdm": "4", "file": "quinone.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "quinone", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Quinone | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Quinone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Radiation (Gamma, 1.0 E+07 Rads)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Radiation (Gamma, 1.0 E+07 Rads) | 3 | 2 | X | X | 2 | 4 | X | X | 4 | 4 | 4 | X | 2 |\n\nSource: \n", "butyl": "4", "chemical": "Radiation (Gamma, 1.0 E+07 Rads)", "epdm": "2", "file": "radiation-gamma-1-0-e-07-rads.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "radiation-gamma-1-0-e-07-rads", "kalrez": "2", "neoprene": "X", "nitrile": "3", "polyacrylate": "X", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "2", "source_quote": "Radiation (Gamma, 1.0 E+07 Rads) | 3 | 2 | X | X | 2 | 4 | X | X | 4 | 4 | 4 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Radiation (Gamma, 1.0 E+07 Rads) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Raffinate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Raffinate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Raffinate", "epdm": "4", "file": "raffinate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "raffinate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Raffinate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Raffinate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Rapeseed Oil\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Rapeseed Oil | 2 | 1 | 2 | 4 | 4 | 1 | 2 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Rapeseed Oil", "epdm": "1", "file": "rapeseed-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "rapeseed-oil", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Rapeseed Oil | 2 | 1 | 2 | 4 | 4 | 1 | 2 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Rapeseed Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Red Line 100 Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Red Line 100 Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Red Line 100 Oil", "epdm": "4", "file": "red-line-100-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "red-line-100-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Red Line 100 Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Red Line 100 Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Red Oil (MIL-H-5606)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Red Oil (MIL-H-5606) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Red Oil (MIL-H-5606)", "epdm": "4", "file": "red-oil-mil-h-5606.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "red-oil-mil-h-5606", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Red Oil (MIL-H-5606) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Red Oil (MIL-H-5606) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Resorcinol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Resorcinol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Resorcinol", "epdm": "1", "file": "resorcinol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "resorcinol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Resorcinol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Resorcinol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Rhodium\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Rhodium | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Rhodium", "epdm": "X", "file": "rhodium.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "rhodium", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Rhodium | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Rhodium \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Riboflavin\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Riboflavin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Riboflavin", "epdm": "4", "file": "riboflavin.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "riboflavin", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Riboflavin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Riboflavin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ricinoleic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ricinoleic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Ricinoleic Acid", "epdm": "4", "file": "ricinoleic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "ricinoleic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Ricinoleic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Ricinoleic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** RJ-1 (MIL-F-25558)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> RJ-1 (MIL-F-25558) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "RJ-1 (MIL-F-25558)", "epdm": "4", "file": "rj-1-mil-f-25558.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "rj-1-mil-f-25558", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "RJ-1 (MIL-F-25558) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "RJ-1 (MIL-F-25558) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** RJ-4 (MIL-F-82522)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> RJ-4 (MIL-F-82522) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | X | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "RJ-4 (MIL-F-82522)", "epdm": "4", "file": "rj-4-mil-f-82522.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "rj-4-mil-f-82522", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "RJ-4 (MIL-F-82522) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | X | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "RJ-4 (MIL-F-82522) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Rosin\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Rosin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Rosin", "epdm": "4", "file": "rosin.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "rosin", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Rosin | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Rosin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** RP-1 (MIL-R-25576)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> RP-1 (MIL-R-25576) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "RP-1 (MIL-R-25576)", "epdm": "4", "file": "rp-1-mil-r-25576.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "rp-1-mil-r-25576", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "RP-1 (MIL-R-25576) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "RP-1 (MIL-R-25576) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Saccharin Solution\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Saccharin Solution | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Saccharin Solution", "epdm": "1", "file": "saccharin-solution.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "saccharin-solution", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Saccharin Solution | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Saccharin Solution \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sal Ammoniac\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sal Ammoniac | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sal Ammoniac", "epdm": "1", "file": "sal-ammoniac.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sal-ammoniac", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sal Ammoniac | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sal Ammoniac \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Salicylic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Salicylic Acid | 2 | 1 | X | 2 | X | 1 | X | X | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Salicylic Acid", "epdm": "1", "file": "salicylic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "salicylic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Salicylic Acid | 2 | 1 | X | 2 | X | 1 | X | X | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Salicylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Santo Safe 300\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Santo Safe 300 | 4 | 3 | 4 | 4 | 1 | 3 | 4 | X | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Santo Safe 300", "epdm": "3", "file": "santo-safe-300.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "santo-safe-300", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Santo Safe 300 | 4 | 3 | 4 | 4 | 1 | 3 | 4 | X | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Santo Safe 300 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sea (Salt) Water\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sea (Salt) Water | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sea (Salt) Water", "epdm": "1", "file": "sea-salt-water.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sea-salt-water", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Sea (Salt) Water | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sea (Salt) Water \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sebacic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sebacic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sebacic Acid", "epdm": "1", "file": "sebacic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sebacic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sebacic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sebacic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Selenic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Selenic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Selenic Acid", "epdm": "1", "file": "selenic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "selenic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Selenic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Selenic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Selenous Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Selenous Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Selenous Acid", "epdm": "1", "file": "selenous-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "selenous-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Selenous Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Selenous Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sewage\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sewage | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sewage", "epdm": "1", "file": "sewage.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sewage", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Sewage | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sewage \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** SF 1154 GE Silicone Fluid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> SF 1154 GE Silicone Fluid | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "SF 1154 GE Silicone Fluid", "epdm": "1", "file": "sf-1154-ge-silicone-fluid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sf-1154-ge-silicone-fluid", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "SF 1154 GE Silicone Fluid | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "SF 1154 GE Silicone Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** SF1147 GE Silicone Fluid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 3\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> SF1147 GE Silicone Fluid | 2 | 3 | X | X | 4 | 3 | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "SF1147 GE Silicone Fluid", "epdm": "3", "file": "sf1147-ge-silicone-fluid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sf1147-ge-silicone-fluid", "kalrez": "1", "neoprene": "X", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "4", "source_quote": "SF1147 GE Silicone Fluid | 2 | 3 | X | X | 4 | 3 | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "SF1147 GE Silicone Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** SF96 GE SIlicone Fluid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> SF96 GE SIlicone Fluid | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "SF96 GE SIlicone Fluid", "epdm": "1", "file": "sf96-ge-silicone-fluid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sf96-ge-silicone-fluid", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "SF96 GE SIlicone Fluid | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "SF96 GE SIlicone Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell 3XF Mine Fluid (Fire resist hydr.)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell 3XF Mine Fluid (Fire resist hydr.) | 1 | 4 | 2 | 4 | X | 4 | 4 | 2 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Shell 3XF Mine Fluid (Fire resist hydr.)", "epdm": "4", "file": "shell-3xf-mine-fluid-fire-resist-hydr.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "shell-3xf-mine-fluid-fire-resist-hydr", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Shell 3XF Mine Fluid (Fire resist hydr.) | 1 | 4 | 2 | 4 | X | 4 | 4 | 2 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell 3XF Mine Fluid (Fire resist hydr.) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell Alvania Grease #2\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell Alvania Grease #2 | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Shell Alvania Grease #2", "epdm": "4", "file": "shell-alvania-grease-2.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "shell-alvania-grease-2", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Shell Alvania Grease #2 | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell Alvania Grease #2 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell Carnea 19 and 29\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell Carnea 19 and 29 | 1 | 4 | 4 | 4 | X | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Shell Carnea 19 and 29", "epdm": "4", "file": "shell-carnea-19-and-29.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "shell-carnea-19-and-29", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Shell Carnea 19 and 29 | 1 | 4 | 4 | 4 | X | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell Carnea 19 and 29 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell Diala\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell Diala | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Shell Diala", "epdm": "4", "file": "shell-diala.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "shell-diala", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Shell Diala | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell Diala \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell Irus 905\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell Irus 905 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Shell Irus 905", "epdm": "4", "file": "shell-irus-905.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "shell-irus-905", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Shell Irus 905 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell Irus 905 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell Lo Hydrax 27 and 29\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell Lo Hydrax 27 and 29 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Shell Lo Hydrax 27 and 29", "epdm": "4", "file": "shell-lo-hydrax-27-and-29.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "shell-lo-hydrax-27-and-29", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Shell Lo Hydrax 27 and 29 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell Lo Hydrax 27 and 29 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell Macome 72\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell Macome 72 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Shell Macome 72", "epdm": "4", "file": "shell-macome-72.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "shell-macome-72", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Shell Macome 72 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell Macome 72 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell Tellus 27 (Petroleum Base)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell Tellus 27 (Petroleum Base) | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Shell Tellus 27 (Petroleum Base)", "epdm": "4", "file": "shell-tellus-27-petroleum-base.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "shell-tellus-27-petroleum-base", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Shell Tellus 27 (Petroleum Base) | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell Tellus 27 (Petroleum Base) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell Tellus #32 Pet. Base\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell Tellus #32 Pet. Base | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Shell Tellus #32 Pet. Base", "epdm": "4", "file": "shell-tellus-32-pet-base.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "shell-tellus-32-pet-base", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Shell Tellus #32 Pet. Base | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell Tellus #32 Pet. Base \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell Tellus 33\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell Tellus 33 | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Shell Tellus 33", "epdm": "4", "file": "shell-tellus-33.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "shell-tellus-33", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Shell Tellus 33 | 1 | 4 | 2 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell Tellus 33 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell Tellus #68\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell Tellus #68 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Shell Tellus #68", "epdm": "4", "file": "shell-tellus-68.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "shell-tellus-68", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Shell Tellus #68 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell Tellus #68 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shell UMF (5% Aromatic)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shell UMF (5% Aromatic) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Shell UMF (5% Aromatic)", "epdm": "4", "file": "shell-umf-5-aromatic.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "shell-umf-5-aromatic", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Shell UMF (5% Aromatic) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shell UMF (5% Aromatic) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Shellac\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Shellac | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Shellac", "epdm": "1", "file": "shellac.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "shellac", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Shellac | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Shellac \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silane\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Silane", "epdm": "X", "file": "silane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "silane", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Silane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silicate Esters\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silicate Esters | 2 | 4 | 1 | 4 | 4 | 4 | X | X | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Silicate Esters", "epdm": "4", "file": "silicate-esters.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "silicate-esters", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Silicate Esters | 2 | 4 | 1 | 4 | 4 | 4 | X | X | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silicate Esters \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silicon Fluoride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silicon Fluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Silicon Fluoride", "epdm": "X", "file": "silicon-fluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "silicon-fluoride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Silicon Fluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silicon Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silicon Tetrachloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silicon Tetrachloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Silicon Tetrachloride", "epdm": "X", "file": "silicon-tetrachloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "silicon-tetrachloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Silicon Tetrachloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silicon Tetrachloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silicon Tetrafluoride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silicon Tetrafluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Silicon Tetrafluoride", "epdm": "X", "file": "silicon-tetrafluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "silicon-tetrafluoride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Silicon Tetrafluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silicon Tetrafluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silicone Greases\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silicone Greases | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Silicone Greases", "epdm": "1", "file": "silicone-greases.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "silicone-greases", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Silicone Greases | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silicone Greases \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silicone Oils\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silicone Oils | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 3 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Silicone Oils", "epdm": "1", "file": "silicone-oils.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "silicone-oils", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Silicone Oils | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silicone Oils \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silver Bromide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silver Bromide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Silver Bromide", "epdm": "1", "file": "silver-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "silver-bromide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Silver Bromide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silver Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silver Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silver Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Silver Chloride", "epdm": "1", "file": "silver-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "silver-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Silver Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silver Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silver Cyanide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silver Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Silver Cyanide", "epdm": "1", "file": "silver-cyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "silver-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Silver Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silver Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silver Nitrate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silver Nitrate | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Silver Nitrate", "epdm": "1", "file": "silver-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "silver-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Silver Nitrate | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silver Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Silver Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Silver Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Silver Sulfate", "epdm": "1", "file": "silver-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "silver-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Silver Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Silver Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sinclair Opaline CX-EP Lube\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sinclair Opaline CX-EP Lube | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sinclair Opaline CX-EP Lube", "epdm": "4", "file": "sinclair-opaline-cx-ep-lube.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sinclair-opaline-cx-ep-lube", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Sinclair Opaline CX-EP Lube | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sinclair Opaline CX-EP Lube \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Skelly, Solvent B, C, E\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Skelly, Solvent B, C, E | 1 | 4 | 4 | 4 | X | 4 | X | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Skelly, Solvent B, C, E", "epdm": "4", "file": "skelly-solvent-b-c-e.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "skelly-solvent-b-c-e", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Skelly, Solvent B, C, E | 1 | 4 | 4 | 4 | X | 4 | X | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Skelly, Solvent B, C, E \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Skydrol 500 B4\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Skydrol 500 B4 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Skydrol 500 B4", "epdm": "1", "file": "skydrol-500-b4.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "skydrol-500-b4", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Skydrol 500 B4 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Skydrol 500 B4 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Skydrol 7000\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Skydrol 7000 | 4 | 1 | 4 | X | X | X | X | X | 2 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Skydrol 7000", "epdm": "1", "file": "skydrol-7000.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "skydrol-7000", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Skydrol 7000 | 4 | 1 | 4 | X | X | X | X | X | 2 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Skydrol 7000 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Skydrol LD-4\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Skydrol LD-4 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Skydrol LD-4", "epdm": "1", "file": "skydrol-ld-4.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "skydrol-ld-4", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Skydrol LD-4 | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Skydrol LD-4 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Soap Solutions\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Soap Solutions | 1 | 1 | 2 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Soap Solutions", "epdm": "1", "file": "soap-solutions.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "soap-solutions", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Soap Solutions | 1 | 1 | 2 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Soap Solutions \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Socony Mobile Type A\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Socony Mobile Type A | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Socony Mobile Type A", "epdm": "4", "file": "socony-mobile-type-a.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "socony-mobile-type-a", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Socony Mobile Type A | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Socony Mobile Type A \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Socony Vacuum AMV AC781 (Grease)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Socony Vacuum AMV AC781 (Grease) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Socony Vacuum AMV AC781 (Grease)", "epdm": "4", "file": "socony-vacuum-amv-ac781-grease.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "socony-vacuum-amv-ac781-grease", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Socony Vacuum AMV AC781 (Grease) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Socony Vacuum AMV AC781 (Grease) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Socony Vacuum PD959B\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Socony Vacuum PD959B | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Socony Vacuum PD959B", "epdm": "4", "file": "socony-vacuum-pd959b.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "socony-vacuum-pd959b", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Socony Vacuum PD959B | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Socony Vacuum PD959B \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Soda Ash\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Soda Ash | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Soda Ash", "epdm": "1", "file": "soda-ash.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "soda-ash", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Soda Ash | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Soda Ash \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Acetate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 3 | 1 | 4 | 3 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Acetate", "epdm": "1", "file": "sodium-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-acetate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "3", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Sodium Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 3 | 1 | 4 | 3 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Acid Bisulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Acid Bisulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Acid Bisulfate", "epdm": "1", "file": "sodium-acid-bisulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-acid-bisulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Acid Bisulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Acid Bisulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Acid Fluoride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Acid Fluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Acid Fluoride", "epdm": "1", "file": "sodium-acid-fluoride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-acid-fluoride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Acid Fluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Acid Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Acid Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Acid Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Acid Sulfate", "epdm": "1", "file": "sodium-acid-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-acid-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Acid Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Acid Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Aluminate Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Aluminate Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Aluminate Sulfate", "epdm": "1", "file": "sodium-aluminate-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-aluminate-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Aluminate Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Aluminate Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Aluminate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Aluminate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Aluminate", "epdm": "1", "file": "sodium-aluminate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-aluminate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Aluminate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Aluminate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Anthraquinone Disulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Anthraquinone Disulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Anthraquinone Disulfate", "epdm": "1", "file": "sodium-anthraquinone-disulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-anthraquinone-disulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Anthraquinone Disulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Anthraquinone Disulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Antimonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Antimonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Antimonate", "epdm": "1", "file": "sodium-antimonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-antimonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Antimonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Antimonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Arsenate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Arsenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Arsenate", "epdm": "1", "file": "sodium-arsenate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-arsenate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Arsenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Arsenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Arsenite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Arsenite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Arsenite", "epdm": "1", "file": "sodium-arsenite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-arsenite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Arsenite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Arsenite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Benzoate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Benzoate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Benzoate", "epdm": "1", "file": "sodium-benzoate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-benzoate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Benzoate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Benzoate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Bicarbonate (Baking Soda)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Bicarbonate (Baking Soda) | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Bicarbonate (Baking Soda)", "epdm": "1", "file": "sodium-bicarbonate-baking-soda.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-bicarbonate-baking-soda", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Sodium Bicarbonate (Baking Soda) | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Bicarbonate (Baking Soda) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Bichromate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Bichromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Bichromate", "epdm": "1", "file": "sodium-bichromate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-bichromate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Bichromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Bichromate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Bifluoride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Bifluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Bifluoride", "epdm": "1", "file": "sodium-bifluoride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-bifluoride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Bifluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Bifluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Bisulfate or Bisulfite\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Bisulfate or Bisulfite | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Bisulfate or Bisulfite", "epdm": "1", "file": "sodium-bisulfate-or-bisulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-bisulfate-or-bisulfite", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Sodium Bisulfate or Bisulfite | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Bisulfate or Bisulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Bisulfide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Bisulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Bisulfide", "epdm": "1", "file": "sodium-bisulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-bisulfide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Bisulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Bisulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Bitartrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Bitartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Bitartrate", "epdm": "1", "file": "sodium-bitartrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-bitartrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Bitartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Bitartrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Borate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Borate | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Borate", "epdm": "1", "file": "sodium-borate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-borate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Sodium Borate | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Borate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Bromate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Bromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Bromate", "epdm": "1", "file": "sodium-bromate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-bromate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Bromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Bromate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Bromide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Bromide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Bromide", "epdm": "1", "file": "sodium-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-bromide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Bromide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Carbonate (Soda Ash)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Carbonate (Soda Ash) | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Carbonate (Soda Ash)", "epdm": "1", "file": "sodium-carbonate-soda-ash.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-carbonate-soda-ash", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Sodium Carbonate (Soda Ash) | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Carbonate (Soda Ash) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Chlorate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Chlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Chlorate", "epdm": "1", "file": "sodium-chlorate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-chlorate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Chlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Chlorate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Chloride | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | 1 | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Chloride", "epdm": "1", "file": "sodium-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Sodium Chloride | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | 1 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Chlorite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Chlorite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Chlorite", "epdm": "1", "file": "sodium-chlorite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-chlorite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Chlorite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Chlorite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Chloroacetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Chloroacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Chloroacetate", "epdm": "1", "file": "sodium-chloroacetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-chloroacetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Chloroacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Chloroacetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Chromate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Chromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Chromate", "epdm": "1", "file": "sodium-chromate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-chromate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Chromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Chromate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Citrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Citrate", "epdm": "1", "file": "sodium-citrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-citrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Citrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Cyanamide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Cyanamide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Cyanamide", "epdm": "1", "file": "sodium-cyanamide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-cyanamide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Cyanamide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Cyanamide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Cyanate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Cyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Cyanate", "epdm": "1", "file": "sodium-cyanate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-cyanate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Cyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Cyanate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Cyanide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | X | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Cyanide", "epdm": "1", "file": "sodium-cyanide.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Sodium Cyanide | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Diacetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Diacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Diacetate", "epdm": "1", "file": "sodium-diacetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-diacetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Diacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Diacetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Diphenyl Sulfonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Diphenyl Sulfonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Diphenyl Sulfonate", "epdm": "1", "file": "sodium-diphenyl-sulfonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-diphenyl-sulfonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Diphenyl Sulfonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Diphenyl Sulfonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Diphosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Diphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Diphosphate", "epdm": "1", "file": "sodium-diphosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-diphosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Diphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Diphosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Disilicate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Disilicate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Disilicate", "epdm": "1", "file": "sodium-disilicate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-disilicate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Disilicate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Disilicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Ethylate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Ethylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Ethylate", "epdm": "1", "file": "sodium-ethylate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-ethylate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Ethylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Ethylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Ferricyanide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Ferricyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Ferricyanide", "epdm": "1", "file": "sodium-ferricyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-ferricyanide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Ferricyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Ferricyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Ferrocyanide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Ferrocyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Ferrocyanide", "epdm": "1", "file": "sodium-ferrocyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-ferrocyanide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Ferrocyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Ferrocyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Fluoride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Fluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Fluoride", "epdm": "1", "file": "sodium-fluoride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-fluoride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Fluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Fluorosilicate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Fluorosilicate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Fluorosilicate", "epdm": "1", "file": "sodium-fluorosilicate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-fluorosilicate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Fluorosilicate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Fluorosilicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Glutamate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Glutamate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Glutamate", "epdm": "1", "file": "sodium-glutamate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-glutamate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Glutamate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Glutamate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Hydride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Hydride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Sodium Hydride", "epdm": "X", "file": "sodium-hydride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sodium-hydride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Sodium Hydride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Hydride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Hydrogen Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Hydrogen Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Hydrogen Sulfate", "epdm": "1", "file": "sodium-hydrogen-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-hydrogen-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Hydrogen Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Hydrogen Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Hydrosulfide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Hydrosulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Hydrosulfide", "epdm": "1", "file": "sodium-hydrosulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-hydrosulfide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Hydrosulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Hydrosulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Hydrosulfite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Hydrosulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Hydrosulfite", "epdm": "1", "file": "sodium-hydrosulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-hydrosulfite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Hydrosulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Hydrosulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Hydroxide, 3 Molar\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Hydroxide, 3 Molar | 2 | 1 | 2 | 2 | 1 | 1 | 4 | 1 | 2 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Hydroxide, 3 Molar", "epdm": "1", "file": "sodium-hydroxide-3-molar.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-hydroxide-3-molar", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Sodium Hydroxide, 3 Molar | 2 | 1 | 2 | 2 | 1 | 1 | 4 | 1 | 2 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Hydroxide, 3 Molar \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Hypochlorite\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Hypochlorite | 2 | 1 | 2 | 2 | 2 | 1 | 4 | 1 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Hypochlorite", "epdm": "1", "file": "sodium-hypochlorite.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-hypochlorite", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Sodium Hypochlorite | 2 | 1 | 2 | 2 | 2 | 1 | 4 | 1 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Hypochlorite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Hypophosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Hypophosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Hypophosphate", "epdm": "1", "file": "sodium-hypophosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-hypophosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Hypophosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Hypophosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Hypophosphite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Hypophosphite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Hypophosphite", "epdm": "1", "file": "sodium-hypophosphite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-hypophosphite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Hypophosphite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Hypophosphite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Hyposulfite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Hyposulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Hyposulfite", "epdm": "1", "file": "sodium-hyposulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-hyposulfite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Hyposulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Hyposulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Iodide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Iodide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Iodide", "epdm": "1", "file": "sodium-iodide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-iodide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Iodide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Iodide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Lactate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Lactate", "epdm": "1", "file": "sodium-lactate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-lactate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Lactate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Lactate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Metaphosphate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Metaphosphate | 1 | 1 | 2 | 1 | X | 1 | X | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Metaphosphate", "epdm": "1", "file": "sodium-metaphosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sodium-metaphosphate", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Sodium Metaphosphate | 1 | 1 | 2 | 1 | X | 1 | X | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Metaphosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Metasilicate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Metasilicate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Metasilicate", "epdm": "1", "file": "sodium-metasilicate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-metasilicate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Metasilicate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Metasilicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Methylate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Methylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Methylate", "epdm": "1", "file": "sodium-methylate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-methylate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Methylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Methylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium (Molten)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 4\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium (Molten) | X | X | X | X | X | X | X | X | X | X | X | X | 4 |\n\nSource: \n", "butyl": "X", "chemical": "Sodium (Molten)", "epdm": "X", "file": "sodium-molten.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sodium-molten", "kalrez": "4", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Sodium (Molten) | X | X | X | X | X | X | X | X | X | X | X | X | 4 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium (Molten) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Monophosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Monophosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Monophosphate", "epdm": "1", "file": "sodium-monophosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-monophosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Monophosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Monophosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Nitrate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Nitrate | 2 | 1 | 2 | 2 | 4 | 1 | X | 1 | X | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Nitrate", "epdm": "1", "file": "sodium-nitrate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-nitrate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Sodium Nitrate | 2 | 1 | 2 | 2 | 4 | 1 | X | 1 | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Oleate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Oleate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Oleate", "epdm": "1", "file": "sodium-oleate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-oleate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Oleate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Oleate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Orthosilicate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Orthosilicate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Orthosilicate", "epdm": "1", "file": "sodium-orthosilicate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-orthosilicate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Orthosilicate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Orthosilicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Oxalate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Oxalate", "epdm": "1", "file": "sodium-oxalate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-oxalate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Oxalate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Oxalate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Perborate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Perborate | 2 | 1 | 2 | 2 | 2 | 1 | X | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Perborate", "epdm": "1", "file": "sodium-perborate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sodium-perborate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Sodium Perborate | 2 | 1 | 2 | 2 | 2 | 1 | X | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Perborate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Percarbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Percarbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Percarbonate", "epdm": "1", "file": "sodium-percarbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-percarbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Percarbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Percarbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Perchlorate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Perchlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Perchlorate", "epdm": "1", "file": "sodium-perchlorate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-perchlorate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Perchlorate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Perchlorate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Peroxide\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Peroxide | 2 | 1 | 2 | 2 | 4 | 1 | 4 | 2 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Peroxide", "epdm": "1", "file": "sodium-peroxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sodium-peroxide", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Sodium Peroxide | 2 | 1 | 2 | 2 | 4 | 1 | 4 | 2 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Peroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Persulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Persulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Persulfate", "epdm": "1", "file": "sodium-persulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-persulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Persulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Persulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Phenolate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Phenolate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Phenolate", "epdm": "1", "file": "sodium-phenolate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-phenolate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Phenolate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Phenolate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Phenoxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Phenoxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Phenoxide", "epdm": "1", "file": "sodium-phenoxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-phenoxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Phenoxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Phenoxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Phosphate (Dibasic)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Phosphate (Dibasic) | 1 | 1 | 2 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Phosphate (Dibasic)", "epdm": "1", "file": "sodium-phosphate-dibasic.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-phosphate-dibasic", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "Sodium Phosphate (Dibasic) | 1 | 1 | 2 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Phosphate (Dibasic) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Phosphate (Mono)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Phosphate (Mono) | 1 | 1 | 2 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Phosphate (Mono)", "epdm": "1", "file": "sodium-phosphate-mono.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-phosphate-mono", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "4", "source_quote": "Sodium Phosphate (Mono) | 1 | 1 | 2 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Phosphate (Mono) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Phosphate (Tribasic)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Phosphate (Tribasic) | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Phosphate (Tribasic)", "epdm": "1", "file": "sodium-phosphate-tribasic.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-phosphate-tribasic", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Sodium Phosphate (Tribasic) | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Phosphate (Tribasic) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Plumbite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Plumbite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Plumbite", "epdm": "1", "file": "sodium-plumbite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-plumbite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Plumbite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Plumbite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Pyrophosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Pyrophosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Pyrophosphate", "epdm": "1", "file": "sodium-pyrophosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-pyrophosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Pyrophosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Pyrophosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Resinate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Resinate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Resinate", "epdm": "1", "file": "sodium-resinate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-resinate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Resinate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Resinate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Salicylate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Salicylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Salicylate", "epdm": "1", "file": "sodium-salicylate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-salicylate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Salicylate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Salicylate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Salts\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Salts | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Salts", "epdm": "1", "file": "sodium-salts.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-salts", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Sodium Salts | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Salts \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Sesquisilicate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Sesquisilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Sodium Sesquisilicate", "epdm": "X", "file": "sodium-sesquisilicate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sodium-sesquisilicate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Sodium Sesquisilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Sesquisilicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Silicate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Silicate | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Silicate", "epdm": "1", "file": "sodium-silicate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-silicate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Sodium Silicate | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Silicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Silicofluoride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Silicofluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Sodium Silicofluoride", "epdm": "X", "file": "sodium-silicofluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sodium-silicofluoride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Sodium Silicofluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Silicofluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Stannate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Stannate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Stannate", "epdm": "1", "file": "sodium-stannate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-stannate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Stannate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Stannate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Sulfate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Sulfate", "epdm": "1", "file": "sodium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Sodium Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Sulfide and Sulfite\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Sulfide and Sulfite | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Sulfide and Sulfite", "epdm": "1", "file": "sodium-sulfide-and-sulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-sulfide-and-sulfite", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Sodium Sulfide and Sulfite | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Sulfide and Sulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Sulfocyanide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Sulfocyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Sulfocyanide", "epdm": "1", "file": "sodium-sulfocyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-sulfocyanide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Sulfocyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Sulfocyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Tartrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Tartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Tartrate", "epdm": "1", "file": "sodium-tartrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-tartrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Tartrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Tartrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Tetraborate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Tetraborate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Tetraborate", "epdm": "1", "file": "sodium-tetraborate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-tetraborate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Tetraborate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Tetraborate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Tetraphosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Tetraphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Tetraphosphate", "epdm": "1", "file": "sodium-tetraphosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-tetraphosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Tetraphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Tetraphosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Tetrasulfide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Tetrasulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Tetrasulfide", "epdm": "1", "file": "sodium-tetrasulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-tetrasulfide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Tetrasulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Tetrasulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Thioarsenate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Thioarsenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Thioarsenate", "epdm": "1", "file": "sodium-thioarsenate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-thioarsenate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Thioarsenate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Thioarsenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Thiocyanate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Thiocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Thiocyanate", "epdm": "1", "file": "sodium-thiocyanate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-thiocyanate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Thiocyanate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Thiocyanate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Thiosulfate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Thiosulfate | 2 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Thiosulfate", "epdm": "1", "file": "sodium-thiosulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-thiosulfate", "kalrez": "1", "neoprene": "1", "nitrile": "2", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Sodium Thiosulfate | 2 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Thiosulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Trichloroacetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Trichloroacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Trichloroacetate", "epdm": "1", "file": "sodium-trichloroacetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-trichloroacetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Trichloroacetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Trichloroacetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sodium Triphosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sodium Triphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sodium Triphosphate", "epdm": "1", "file": "sodium-triphosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sodium-triphosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sodium Triphosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sodium Triphosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Solvesso 100, 150\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Solvesso 100, 150 | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Solvesso 100, 150", "epdm": "X", "file": "solvesso-100-150.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "solvesso-100-150", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Solvesso 100, 150 | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Solvesso 100, 150 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sorbitol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sorbitol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sorbitol", "epdm": "1", "file": "sorbitol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sorbitol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sorbitol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sorbitol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sour Crude Oil\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sour Crude Oil | 3 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sour Crude Oil", "epdm": "4", "file": "sour-crude-oil.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sour-crude-oil", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Sour Crude Oil | 3 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sour Crude Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sour Natural Gas\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sour Natural Gas | 3 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sour Natural Gas", "epdm": "4", "file": "sour-natural-gas.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sour-natural-gas", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Sour Natural Gas | 3 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sour Natural Gas \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sovasol No. 1, 2, and 3\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sovasol No. 1, 2, and 3 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sovasol No. 1, 2, and 3", "epdm": "4", "file": "sovasol-no-1-2-and-3.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sovasol-no-1-2-and-3", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Sovasol No. 1, 2, and 3 | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sovasol No. 1, 2, and 3 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sovasol No. 73 and 74\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sovasol No. 73 and 74 | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sovasol No. 73 and 74", "epdm": "4", "file": "sovasol-no-73-and-74.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sovasol-no-73-and-74", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Sovasol No. 73 and 74 | 2 | 4 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Sovasol No. 73 and 74 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Soybean Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Soybean Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 3 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Soybean Oil", "epdm": "3", "file": "soybean-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "soybean-oil", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Soybean Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | 3 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Soybean Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Spry\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Spry | 1 | 2 | 2 | 4 | 1 | 2 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Spry", "epdm": "2", "file": "spry.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "spry", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Spry | 1 | 2 | 2 | 4 | 1 | 2 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Spry \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** SR-10 Fuel\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> SR-10 Fuel | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "SR-10 Fuel", "epdm": "4", "file": "sr-10-fuel.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "sr-10-fuel", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "SR-10 Fuel | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "SR-10 Fuel \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** SR-6 Fuel\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> SR-6 Fuel | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "SR-6 Fuel", "epdm": "4", "file": "sr-6-fuel.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "sr-6-fuel", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "SR-6 Fuel | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "SR-6 Fuel \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Standard Oil Mobilube GX90-EP Lube\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Standard Oil Mobilube GX90-EP Lube | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Standard Oil Mobilube GX90-EP Lube", "epdm": "4", "file": "standard-oil-mobilube-gx90-ep-lube.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "standard-oil-mobilube-gx90-ep-lube", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Standard Oil Mobilube GX90-EP Lube | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Standard Oil Mobilube GX90-EP Lube \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stannic Ammonium Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stannic Ammonium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Stannic Ammonium Chloride", "epdm": "1", "file": "stannic-ammonium-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "stannic-ammonium-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Stannic Ammonium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Stannic Ammonium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stannic Chloride, 50%\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stannic Chloride, 50% | 1 | 1 | 4 | 1 | 2 | 1 | X | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Stannic Chloride, 50%", "epdm": "1", "file": "stannic-chloride-50.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "stannic-chloride-50", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Stannic Chloride, 50% | 1 | 1 | 4 | 1 | 2 | 1 | X | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Stannic Chloride, 50% \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stannic Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stannic Chloride | 1 | 1 | 4 | 1 | 2 | 1 | X | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Stannic Chloride", "epdm": "1", "file": "stannic-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "stannic-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Stannic Chloride | 1 | 1 | 4 | 1 | 2 | 1 | X | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Stannic Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stannic Tetrachloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stannic Tetrachloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Stannic Tetrachloride", "epdm": "1", "file": "stannic-tetrachloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "stannic-tetrachloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Stannic Tetrachloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Stannic Tetrachloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stannous Bisulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stannous Bisulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Stannous Bisulfate", "epdm": "1", "file": "stannous-bisulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "stannous-bisulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Stannous Bisulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Stannous Bisulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stannous Bromide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stannous Bromide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Stannous Bromide", "epdm": "1", "file": "stannous-bromide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "stannous-bromide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Stannous Bromide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Stannous Bromide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stannous Chloride (15%)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stannous Chloride (15%) | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Stannous Chloride (15%)", "epdm": "1", "file": "stannous-chloride-15.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "stannous-chloride-15", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Stannous Chloride (15%) | 1 | 1 | 1 | 1 | 2 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Stannous Chloride (15%) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stannous Fluoride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stannous Fluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Stannous Fluoride", "epdm": "1", "file": "stannous-fluoride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "stannous-fluoride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Stannous Fluoride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Stannous Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stannous Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stannous Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Stannous Sulfate", "epdm": "1", "file": "stannous-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "stannous-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Stannous Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Stannous Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stauffer 7700\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stauffer 7700 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Stauffer 7700", "epdm": "4", "file": "stauffer-7700.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "stauffer-7700", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Stauffer 7700 | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-5"], "stale_after": "2028-08-11", "title": "Stauffer 7700 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Steam, 400\u00b0 - 500\u00b0F\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Steam, 400\u00b0 - 500\u00b0F | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Steam, 400\u00b0 - 500\u00b0F", "epdm": "3", "file": "steam-400-500-f.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "steam-400-500-f", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Steam, 400\u00b0 - 500\u00b0F | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Steam, 400\u00b0 - 500\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Steam, Above 500\u00b0F\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Steam, Above 500\u00b0F | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Steam, Above 500\u00b0F", "epdm": "X", "file": "steam-above-500-f.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "steam-above-500-f", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Steam, Above 500\u00b0F | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Steam, Above 500\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Steam Below 400\u00b0F\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Steam Below 400\u00b0F | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Steam Below 400\u00b0F", "epdm": "1", "file": "steam-below-400-f.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "steam-below-400-f", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Steam Below 400\u00b0F | 4 | 1 | 4 | 4 | 3 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Steam Below 400\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stearic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stearic Acid | 2 | 2 | 2 | 2 | 2 | 2 | X | 2 | X | X | X | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Stearic Acid", "epdm": "2", "file": "stearic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "stearic-acid", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Stearic Acid | 2 | 2 | 2 | 2 | 2 | 2 | X | 2 | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Stearic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Stoddard Solvent\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Stoddard Solvent | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Stoddard Solvent", "epdm": "4", "file": "stoddard-solvent.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "stoddard-solvent", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Stoddard Solvent | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Stoddard Solvent \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Strontium Acetate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Strontium Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Strontium Acetate", "epdm": "1", "file": "strontium-acetate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "strontium-acetate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Strontium Acetate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Strontium Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Strontium Carbonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Strontium Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Strontium Carbonate", "epdm": "1", "file": "strontium-carbonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "strontium-carbonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Strontium Carbonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Strontium Carbonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Strontium Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Strontium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Strontium Chloride", "epdm": "1", "file": "strontium-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "strontium-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Strontium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Strontium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Strontium Hydroxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Strontium Hydroxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Strontium Hydroxide", "epdm": "1", "file": "strontium-hydroxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "strontium-hydroxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Strontium Hydroxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Strontium Hydroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Strontium Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Strontium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Strontium Nitrate", "epdm": "1", "file": "strontium-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "strontium-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Strontium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Strontium Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Styrene (Monomer)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Styrene (Monomer) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | X | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Styrene (Monomer)", "epdm": "4", "file": "styrene-monomer.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "styrene-monomer", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Styrene (Monomer) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | X | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Styrene (Monomer) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Succinic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Succinic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Succinic Acid", "epdm": "1", "file": "succinic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "succinic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Succinic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Succinic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sucrose Solutions\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sucrose Solutions | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 2 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sucrose Solutions", "epdm": "1", "file": "sucrose-solutions.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sucrose-solutions", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Sucrose Solutions | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 2 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sucrose Solutions \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfamic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfamic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sulfamic Acid", "epdm": "1", "file": "sulfamic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sulfamic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sulfamic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfamic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfanilic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfanilic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sulfanilic Acid", "epdm": "1", "file": "sulfanilic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sulfanilic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sulfanilic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfanilic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfanilic Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfanilic Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sulfanilic Chloride", "epdm": "4", "file": "sulfanilic-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "sulfanilic-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Sulfanilic Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfanilic Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfanilimide\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfanilimide | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sulfanilimide", "epdm": "4", "file": "sulfanilimide.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "sulfanilimide", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Sulfanilimide | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfanilimide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfite Liquors\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfite Liquors | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sulfite Liquors", "epdm": "1", "file": "sulfite-liquors.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sulfite-liquors", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sulfite Liquors | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfite Liquors \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfolane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfolane | 2 | 1 | 2 | X | X | X | X | X | 2 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Sulfolane", "epdm": "1", "file": "sulfolane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sulfolane", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Sulfolane | 2 | 1 | 2 | X | X | X | X | X | 2 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfolane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfonated Oils\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfonated Oils | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sulfonated Oils", "epdm": "4", "file": "sulfonated-oils.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "sulfonated-oils", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Sulfonated Oils | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfonated Oils \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfonic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sulfonic Acid", "epdm": "1", "file": "sulfonic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sulfonic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfonyl Choride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfonyl Choride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Sulfonyl Choride", "epdm": "1", "file": "sulfonyl-choride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sulfonyl-choride", "kalrez": "2", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sulfonyl Choride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfonyl Choride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfur Chloride\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfur Chloride | 4 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sulfur Chloride", "epdm": "4", "file": "sulfur-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "sulfur-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Sulfur Chloride | 4 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfur Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfur Dioxide, Dry\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfur Dioxide, Dry | 4 | 1 | 4 | 2 | 2 | 2 | 4 | 4 | 4 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Sulfur Dioxide, Dry", "epdm": "1", "file": "sulfur-dioxide-dry.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "sulfur-dioxide-dry", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Sulfur Dioxide, Dry | 4 | 1 | 4 | 2 | 2 | 2 | 4 | 4 | 4 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfur Dioxide, Dry \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfur Dioxide, Liquidified under pressure\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfur Dioxide, Liquidified under pressure | 4 | 1 | 4 | 4 | 2 | 2 | 4 | 4 | 4 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Sulfur Dioxide, Liquidified under pressure", "epdm": "1", "file": "sulfur-dioxide-liquidified-under-pressure.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "sulfur-dioxide-liquidified-under-pressure", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Sulfur Dioxide, Liquidified under pressure | 4 | 1 | 4 | 4 | 2 | 2 | 4 | 4 | 4 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfur Dioxide, Liquidified under pressure \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfur Dioxide, Wet\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfur Dioxide, Wet | 4 | 1 | 2 | 4 | 2 | 1 | 4 | 3 | 4 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sulfur Dioxide, Wet", "epdm": "1", "file": "sulfur-dioxide-wet.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "sulfur-dioxide-wet", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Sulfur Dioxide, Wet | 4 | 1 | 2 | 4 | 2 | 1 | 4 | 3 | 4 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfur Dioxide, Wet \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "3", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfur Hexafluoride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 3\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfur Hexafluoride | 2 | 1 | 1 | X | X | X | X | X | 3 | X | X | 3 | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Sulfur Hexafluoride", "epdm": "1", "file": "sulfur-hexafluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sulfur-hexafluoride", "kalrez": "2", "neoprene": "1", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Sulfur Hexafluoride | 2 | 1 | 1 | X | X | X | X | X | 3 | X | X | 3 | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfur Hexafluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfur Liquors\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfur Liquors | 2 | 2 | 2 | 2 | 4 | 2 | 4 | 2 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Sulfur Liquors", "epdm": "2", "file": "sulfur-liquors.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sulfur-liquors", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Sulfur Liquors | 2 | 2 | 2 | 2 | 4 | 2 | 4 | 2 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfur Liquors \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfur (Molten)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 3\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfur (Molten) | 4 | 3 | 3 | 4 | 3 | 3 | 4 | 4 | 1 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Sulfur (Molten)", "epdm": "3", "file": "sulfur-molten.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "sulfur-molten", "kalrez": "1", "neoprene": "3", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Sulfur (Molten) | 4 | 3 | 3 | 4 | 3 | 3 | 4 | 4 | 1 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfur (Molten) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfur Monochloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfur Monochloride | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sulfur Monochloride", "epdm": "4", "file": "sulfur-monochloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sulfur-monochloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Sulfur Monochloride | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfur Monochloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfur Tetrafluoride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfur Tetrafluoride | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Sulfur Tetrafluoride", "epdm": "X", "file": "sulfur-tetrafluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sulfur-tetrafluoride", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Sulfur Tetrafluoride | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfur Tetrafluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfur Trioxide Dry\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 3\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfur Trioxide Dry | 4 | 2 | 4 | 3 | 2 | 2 | 4 | 4 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Sulfur Trioxide Dry", "epdm": "2", "file": "sulfur-trioxide-dry.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "sulfur-trioxide-dry", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "2", "source_quote": "Sulfur Trioxide Dry | 4 | 2 | 4 | 3 | 2 | 2 | 4 | 4 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfur Trioxide Dry \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfur\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfur | 4 | 1 | 1 | 4 | X | 1 | 4 | X | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sulfur", "epdm": "1", "file": "sulfur.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sulfur", "kalrez": "1", "neoprene": "1", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Sulfur | 4 | 1 | 1 | 4 | X | 1 | 4 | X | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfur \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfuric Acid (20% Oleum)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfuric Acid (20% Oleum) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sulfuric Acid (20% Oleum)", "epdm": "1", "file": "sulfuric-acid-20-oleum.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sulfuric-acid-20-oleum", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sulfuric Acid (20% Oleum) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfuric Acid (20% Oleum) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfuric Acid, 3 Molar to 158\u00b0F\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 3\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfuric Acid, 3 Molar to 158\u00b0F | 2 | 1 | 2 | 3 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sulfuric Acid, 3 Molar to 158\u00b0F", "epdm": "1", "file": "sulfuric-acid-3-molar-to-158-f.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sulfuric-acid-3-molar-to-158-f", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "1", "source_quote": "Sulfuric Acid, 3 Molar to 158\u00b0F | 2 | 1 | 2 | 3 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfuric Acid, 3 Molar to 158\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfuric Acid, Concentrated Room Temp\n\n**Nitrile (NBR):** X\n\n**EPDM:** 3\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfuric Acid, Concentrated Room Temp | X | 3 | X | X | X | X | X | X | 1 | 3 | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Sulfuric Acid, Concentrated Room Temp", "epdm": "3", "file": "sulfuric-acid-concentrated-room-temp.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sulfuric-acid-concentrated-room-temp", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Sulfuric Acid, Concentrated Room Temp | X | 3 | X | X | X | X | X | X | 1 | 3 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfuric Acid, Concentrated Room Temp \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfuric Acid, Concentrated to 158\u00b0F\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfuric Acid, Concentrated to 158\u00b0F | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sulfuric Acid, Concentrated to 158\u00b0F", "epdm": "4", "file": "sulfuric-acid-concentrated-to-158-f.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "sulfuric-acid-concentrated-to-158-f", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Sulfuric Acid, Concentrated to 158\u00b0F | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfuric Acid, Concentrated to 158\u00b0F \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfuric Chlorohydrin (Chlorosulfonic Acid)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfuric Chlorohydrin (Chlorosulfonic Acid) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Sulfuric Chlorohydrin (Chlorosulfonic Acid)", "epdm": "1", "file": "sulfuric-chlorohydrin-chlorosulfonic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sulfuric-chlorohydrin-chlorosulfonic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Sulfuric Chlorohydrin (Chlorosulfonic Acid) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfuric Chlorohydrin (Chlorosulfonic Acid) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sulfurous Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sulfurous Acid | 2 | 2 | 2 | 2 | 4 | 2 | 4 | 1 | 1 | 3 | X | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Sulfurous Acid", "epdm": "2", "file": "sulfurous-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "sulfurous-acid", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Sulfurous Acid | 2 | 2 | 2 | 2 | 4 | 2 | 4 | 1 | 1 | 3 | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sulfurous Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sunoco #3661\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sunoco #3661 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sunoco #3661", "epdm": "4", "file": "sunoco-3661.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sunoco-3661", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Sunoco #3661 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sunoco #3661 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sunoco All purpose grease\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sunoco All purpose grease | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sunoco All purpose grease", "epdm": "4", "file": "sunoco-all-purpose-grease.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sunoco-all-purpose-grease", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Sunoco All purpose grease | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sunoco All purpose grease \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sunoco SAE 10\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sunoco SAE 10 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sunoco SAE 10", "epdm": "4", "file": "sunoco-sae-10.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sunoco-sae-10", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Sunoco SAE 10 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sunoco SAE 10 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Sunsafe (Fire resist. hydr. fluid)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Sunsafe (Fire resist. hydr. fluid) | 1 | 4 | 2 | 4 | X | 4 | 4 | 2 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Sunsafe (Fire resist. hydr. fluid)", "epdm": "4", "file": "sunsafe-fire-resist-hydr-fluid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "sunsafe-fire-resist-hydr-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Sunsafe (Fire resist. hydr. fluid) | 1 | 4 | 2 | 4 | X | 4 | 4 | 2 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Sunsafe (Fire resist. hydr. fluid) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Super Shell Gas\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Super Shell Gas | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Super Shell Gas", "epdm": "4", "file": "super-shell-gas.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "super-shell-gas", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Super Shell Gas | 1 | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Super Shell Gas \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Surfuryl Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Surfuryl Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Surfuryl Chloride", "epdm": "1", "file": "surfuryl-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "surfuryl-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Surfuryl Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Surfuryl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Swan Finch EP Lube\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Swan Finch EP Lube | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Swan Finch EP Lube", "epdm": "4", "file": "swan-finch-ep-lube.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "swan-finch-ep-lube", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Swan Finch EP Lube | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Swan Finch EP Lube \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Swan Finch Hypoid-90\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Swan Finch Hypoid-90 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Swan Finch Hypoid-90", "epdm": "4", "file": "swan-finch-hypoid-90.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "swan-finch-hypoid-90", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Swan Finch Hypoid-90 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Swan Finch Hypoid-90 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tallow\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tallow | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tallow", "epdm": "4", "file": "tallow.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "tallow", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Tallow | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tallow \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tannic Acid (10%)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tannic Acid (10%) | 1 | 1 | 1 | 2 | 2 | 1 | 4 | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Tannic Acid (10%)", "epdm": "1", "file": "tannic-acid-10.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "tannic-acid-10", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "2", "source_quote": "Tannic Acid (10%) | 1 | 1 | 1 | 2 | 2 | 1 | 4 | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tannic Acid (10%) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tar, bituminous\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tar, bituminous | 2 | 4 | 3 | 4 | 2 | 4 | 4 | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tar, bituminous", "epdm": "4", "file": "tar-bituminous.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tar-bituminous", "kalrez": "1", "neoprene": "3", "nitrile": "2", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Tar, bituminous | 2 | 4 | 3 | 4 | 2 | 4 | 4 | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tar, bituminous \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tartaric Acid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tartaric Acid | 1 | 2 | 2 | 4 | 1 | 2 | X | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Tartaric Acid", "epdm": "2", "file": "tartaric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "tartaric-acid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Tartaric Acid | 1 | 2 | 2 | 4 | 1 | 2 | X | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tartaric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tellone II\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tellone II | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Tellone II", "epdm": "X", "file": "tellone-ii.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "tellone-ii", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Tellone II | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tellone II \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Terephthalic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Terephthalic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Terephthalic Acid", "epdm": "1", "file": "terephthalic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "terephthalic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Terephthalic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Terephthalic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Terpineol\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 3\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Terpineol | 2 | 3 | 4 | 4 | X | 3 | X | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Terpineol", "epdm": "3", "file": "terpineol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "terpineol", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "X", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Terpineol | 2 | 3 | 4 | 4 | X | 3 | X | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Terpineol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Terpinyl Acetate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Terpinyl Acetate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Terpinyl Acetate", "epdm": "4", "file": "terpinyl-acetate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "terpinyl-acetate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Terpinyl Acetate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Terpinyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tertiary Amyl Methyl Ether (TAME)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tertiary Amyl Methyl Ether (TAME) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Tertiary Amyl Methyl Ether (TAME)", "epdm": "X", "file": "tertiary-amyl-methyl-ether-tame.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "tertiary-amyl-methyl-ether-tame", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Tertiary Amyl Methyl Ether (TAME) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tertiary Amyl Methyl Ether (TAME) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tertiary Butyl Catechol or p-tert-butylcatechol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tertiary Butyl Catechol or p-tert-butylcatechol | 4 | 2 | 2 | 2 | X | 2 | 4 | 2 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Tertiary Butyl Catechol or p-tert-butylcatechol", "epdm": "2", "file": "tertiary-butyl-catechol-or-p-tert-butylcatechol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "tertiary-butyl-catechol-or-p-tert-butylcatechol", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Tertiary Butyl Catechol or p-tert-butylcatechol | 4 | 2 | 2 | 2 | X | 2 | 4 | 2 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tertiary Butyl Catechol or p-tert-butylcatechol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tertiary Butyl Mercaptan\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tertiary Butyl Mercaptan | 4 | 4 | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Tertiary Butyl Mercaptan", "epdm": "4", "file": "tertiary-butyl-mercaptan.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "tertiary-butyl-mercaptan", "kalrez": "1", "neoprene": "X", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Tertiary Butyl Mercaptan | 4 | 4 | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tertiary Butyl Mercaptan \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetrabromoethane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetrabromoethane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tetrabromoethane", "epdm": "4", "file": "tetrabromoethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tetrabromoethane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Tetrabromoethane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetrabromoethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetrabromomethane\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetrabromomethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tetrabromomethane", "epdm": "4", "file": "tetrabromomethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tetrabromomethane", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Tetrabromomethane | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetrabromomethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetrabutyl Titanate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetrabutyl Titanate | 2 | 1 | 2 | 2 | 4 | 2 | X | 4 | 1 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Tetrabutyl Titanate", "epdm": "1", "file": "tetrabutyl-titanate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tetrabutyl-titanate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Tetrabutyl Titanate | 2 | 1 | 2 | 2 | 4 | 2 | X | 4 | 1 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetrabutyl Titanate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetrachloroethylene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetrachloroethylene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tetrachloroethylene", "epdm": "4", "file": "tetrachloroethylene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tetrachloroethylene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Tetrachloroethylene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetrachloroethylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetrachoroethane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetrachoroethane | 4 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tetrachoroethane", "epdm": "4", "file": "tetrachoroethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tetrachoroethane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Tetrachoroethane | 4 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetrachoroethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetraethyl Lead \u201cBlend\u201d\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetraethyl Lead \u201cBlend\u201d | 2 | 4 | 4 | 4 | X | 4 | X | 4 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tetraethyl Lead \u201cBlend\u201d", "epdm": "4", "file": "tetraethyl-lead-blend.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tetraethyl-lead-blend", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Tetraethyl Lead \u201cBlend\u201d | 2 | 4 | 4 | 4 | X | 4 | X | 4 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetraethyl Lead \u201cBlend\u201d \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetraethyl Lead\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetraethyl Lead | 2 | 4 | 2 | 4 | X | 4 | X | 4 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tetraethyl Lead", "epdm": "4", "file": "tetraethyl-lead.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tetraethyl-lead", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Tetraethyl Lead | 2 | 4 | 2 | 4 | X | 4 | X | 4 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetraethyl Lead \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetraethyl Orthosilicate (TEOS)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetraethyl Orthosilicate (TEOS) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Tetraethyl Orthosilicate (TEOS)", "epdm": "X", "file": "tetraethyl-orthosilicate-teos.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "tetraethyl-orthosilicate-teos", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Tetraethyl Orthosilicate (TEOS) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetraethyl Orthosilicate (TEOS) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetrahydrofuran\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetrahydrofuran | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 3 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Tetrahydrofuran", "epdm": "2", "file": "tetrahydrofuran.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tetrahydrofuran", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Tetrahydrofuran | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 3 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetrahydrofuran \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetralin\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetralin | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tetralin", "epdm": "4", "file": "tetralin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tetralin", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Tetralin | 4 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetralin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetramethyl Ammonium Hydroxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetramethyl Ammonium Hydroxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Tetramethyl Ammonium Hydroxide", "epdm": "1", "file": "tetramethyl-ammonium-hydroxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "tetramethyl-ammonium-hydroxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Tetramethyl Ammonium Hydroxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetramethyl Ammonium Hydroxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetramethylcyclotetrasiloxane (TMCTS)\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetramethylcyclotetrasiloxane (TMCTS) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Tetramethylcyclotetrasiloxane (TMCTS)", "epdm": "X", "file": "tetramethylcyclotetrasiloxane-tmcts.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "tetramethylcyclotetrasiloxane-tmcts", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Tetramethylcyclotetrasiloxane (TMCTS) | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetramethylcyclotetrasiloxane (TMCTS) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetramethyldihydropyridine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetramethyldihydropyridine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tetramethyldihydropyridine", "epdm": "4", "file": "tetramethyldihydropyridine-2.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tetramethyldihydropyridine-2", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Tetramethyldihydropyridine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetramethyldihydropyridine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetramethyldihydropyridine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetramethyldihydropyridine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tetramethyldihydropyridine", "epdm": "4", "file": "tetramethyldihydropyridine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tetramethyldihydropyridine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Tetramethyldihydropyridine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetramethyldihydropyridine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetraphosphoglucosate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetraphosphoglucosate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Tetraphosphoglucosate", "epdm": "1", "file": "tetraphosphoglucosate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "tetraphosphoglucosate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Tetraphosphoglucosate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetraphosphoglucosate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tetraphosphoric Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tetraphosphoric Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Tetraphosphoric Acid", "epdm": "X", "file": "tetraphosphoric-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "tetraphosphoric-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Tetraphosphoric Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tetraphosphoric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Texaco 3450 Gear Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Texaco 3450 Gear Oil | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Texaco 3450 Gear Oil", "epdm": "4", "file": "texaco-3450-gear-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "texaco-3450-gear-oil", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Texaco 3450 Gear Oil | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Texaco 3450 Gear Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Texaco Capella A and AA\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Texaco Capella A and AA | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Texaco Capella A and AA", "epdm": "4", "file": "texaco-capella-a-and-aa.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "texaco-capella-a-and-aa", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Texaco Capella A and AA | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Texaco Capella A and AA \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Texaco Meropa 220 (No Lead)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Texaco Meropa 220 (No Lead) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Texaco Meropa 220 (No Lead)", "epdm": "4", "file": "texaco-meropa-220-no-lead.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "texaco-meropa-220-no-lead", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Texaco Meropa 220 (No Lead) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Texaco Meropa 220 (No Lead) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Texaco Regal B\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Texaco Regal B | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Texaco Regal B", "epdm": "4", "file": "texaco-regal-b.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "texaco-regal-b", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Texaco Regal B | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Texaco Regal B \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Texaco Uni-Temp Grease\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Texaco Uni-Temp Grease | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Texaco Uni-Temp Grease", "epdm": "4", "file": "texaco-uni-temp-grease.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "texaco-uni-temp-grease", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Texaco Uni-Temp Grease | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Texaco Uni-Temp Grease \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Texamatic \u201cA\u201d 1581 Fluid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Texamatic \u201cA\u201d 1581 Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Texamatic \u201cA\u201d 1581 Fluid", "epdm": "4", "file": "texamatic-a-1581-fluid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "texamatic-a-1581-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Texamatic \u201cA\u201d 1581 Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Texamatic \u201cA\u201d 1581 Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Texamatic \u201cA\u201d 3401 Fluid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Texamatic \u201cA\u201d 3401 Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Texamatic \u201cA\u201d 3401 Fluid", "epdm": "4", "file": "texamatic-a-3401-fluid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "texamatic-a-3401-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Texamatic \u201cA\u201d 3401 Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Texamatic \u201cA\u201d 3401 Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Texamatic \u201cA\u201d 3525 Fluid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Texamatic \u201cA\u201d 3525 Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Texamatic \u201cA\u201d 3525 Fluid", "epdm": "4", "file": "texamatic-a-3525-fluid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "texamatic-a-3525-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Texamatic \u201cA\u201d 3525 Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Texamatic \u201cA\u201d 3525 Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Texamatic \u201cA\u201d 3528 Fluid\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Texamatic \u201cA\u201d 3528 Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Texamatic \u201cA\u201d 3528 Fluid", "epdm": "4", "file": "texamatic-a-3528-fluid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "texamatic-a-3528-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Texamatic \u201cA\u201d 3528 Fluid | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Texamatic \u201cA\u201d 3528 Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Texamatic \u201cA\u201d Transmission Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Texamatic \u201cA\u201d Transmission Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Texamatic \u201cA\u201d Transmission Oil", "epdm": "4", "file": "texamatic-a-transmission-oil.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "texamatic-a-transmission-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Texamatic \u201cA\u201d Transmission Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Texamatic \u201cA\u201d Transmission Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Texas 1500 Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Texas 1500 Oil | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Texas 1500 Oil", "epdm": "4", "file": "texas-1500-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "texas-1500-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Texas 1500 Oil | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Texas 1500 Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Therminol 44\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Therminol 44 | 4 | 4 | 4 | X | 4 | 4 | 4 | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Therminol 44", "epdm": "4", "file": "therminol-44.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "therminol-44", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "4", "source_quote": "Therminol 44 | 4 | 4 | 4 | X | 4 | 4 | 4 | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Therminol 44 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Therminol 55\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Therminol 55 | 2 | 4 | 4 | X | 4 | 4 | 2 | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Therminol 55", "epdm": "4", "file": "therminol-55.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "therminol-55", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "4", "source_quote": "Therminol 55 | 2 | 4 | 4 | X | 4 | 4 | 2 | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Therminol 55 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Therminol 66\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Therminol 66 | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Therminol 66", "epdm": "X", "file": "therminol-66.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "therminol-66", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Therminol 66 | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Therminol 66 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Therminol FR\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Therminol FR | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Therminol FR", "epdm": "X", "file": "therminol-fr.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "therminol-fr", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Therminol FR | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Therminol FR \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Therminol VP-1, 60, 65\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** X\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Therminol VP-1, 60, 65 | 4 | 4 | 4 | X | 2 | 4 | 4 | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Therminol VP-1, 60, 65", "epdm": "4", "file": "therminol-vp-1-60-65.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "therminol-vp-1-60-65", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "2", "source_quote": "Therminol VP-1, 60, 65 | 4 | 4 | 4 | X | 2 | 4 | 4 | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Therminol VP-1, 60, 65 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thio Acid Chloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thio Acid Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Thio Acid Chloride", "epdm": "X", "file": "thio-acid-chloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "thio-acid-chloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Thio Acid Chloride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thio Acid Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thioamyl Alcohol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thioamyl Alcohol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Thioamyl Alcohol", "epdm": "4", "file": "thioamyl-alcohol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "thioamyl-alcohol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Thioamyl Alcohol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thioamyl Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thiodiacetic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thiodiacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Thiodiacetic Acid", "epdm": "1", "file": "thiodiacetic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "thiodiacetic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Thiodiacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thiodiacetic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thioethanol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thioethanol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Thioethanol", "epdm": "1", "file": "thioethanol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "thioethanol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Thioethanol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thioethanol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thioglycolic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thioglycolic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Thioglycolic Acid", "epdm": "1", "file": "thioglycolic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "thioglycolic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Thioglycolic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thioglycolic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thiokol TP-90B\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thiokol TP-90B | 4 | 1 | 2 | 4 | X | 1 | X | 2 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Thiokol TP-90B", "epdm": "1", "file": "thiokol-tp-90b.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "thiokol-tp-90b", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Thiokol TP-90B | 4 | 1 | 2 | 4 | X | 1 | X | 2 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thiokol TP-90B \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thiokol TP-95\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thiokol TP-95 | 4 | 1 | 2 | 4 | X | 1 | X | 2 | 1 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Thiokol TP-95", "epdm": "1", "file": "thiokol-tp-95.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "thiokol-tp-95", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Thiokol TP-95 | 4 | 1 | 2 | 4 | X | 1 | X | 2 | 1 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thiokol TP-95 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thionyl Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thionyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Thionyl Chloride", "epdm": "4", "file": "thionyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "thionyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Thionyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thionyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thiophene (Thiofuran)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thiophene (Thiofuran) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Thiophene (Thiofuran)", "epdm": "4", "file": "thiophene-thiofuran.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "thiophene-thiofuran", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Thiophene (Thiofuran) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thiophene (Thiofuran) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thiophosphoryl Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thiophosphoryl Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Thiophosphoryl Chloride", "epdm": "1", "file": "thiophosphoryl-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "thiophosphoryl-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Thiophosphoryl Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thiophosphoryl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thiourea\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thiourea | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Thiourea", "epdm": "1", "file": "thiourea.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "thiourea", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Thiourea | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thiourea \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Thorium Nitrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Thorium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Thorium Nitrate", "epdm": "1", "file": "thorium-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "thorium-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Thorium Nitrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Thorium Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tidewater Multigear, 140 EP Lube\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tidewater Multigear, 140 EP Lube | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tidewater Multigear, 140 EP Lube", "epdm": "4", "file": "tidewater-multigear-140-ep-lube.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "tidewater-multigear-140-ep-lube", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Tidewater Multigear, 140 EP Lube | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tidewater Multigear, 140 EP Lube \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tidewater Oil-Beedol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tidewater Oil-Beedol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tidewater Oil-Beedol", "epdm": "4", "file": "tidewater-oil-beedol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tidewater-oil-beedol", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Tidewater Oil-Beedol | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tidewater Oil-Beedol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tin Ammonium Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tin Ammonium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Tin Ammonium Chloride", "epdm": "1", "file": "tin-ammonium-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "tin-ammonium-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Tin Ammonium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tin Ammonium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tin Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tin Chloride | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tin Chloride", "epdm": "4", "file": "tin-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "tin-chloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Tin Chloride | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tin Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tin Tetrachloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tin Tetrachloride | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tin Tetrachloride", "epdm": "4", "file": "tin-tetrachloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "tin-tetrachloride", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Tin Tetrachloride | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tin Tetrachloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Titanic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Titanic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Titanic Acid", "epdm": "1", "file": "titanic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "titanic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Titanic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Titanic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Titanium Dioxide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Titanium Dioxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Titanium Dioxide", "epdm": "1", "file": "titanium-dioxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "titanium-dioxide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Titanium Dioxide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Titanium Dioxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Titanium Sulfate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Titanium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Titanium Sulfate", "epdm": "1", "file": "titanium-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "titanium-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Titanium Sulfate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Titanium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Titanium Tetrachloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Titanium Tetrachloride | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Titanium Tetrachloride", "epdm": "4", "file": "titanium-tetrachloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "titanium-tetrachloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Titanium Tetrachloride | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Titanium Tetrachloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Toluene Bisodium Sulfite\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Toluene Bisodium Sulfite | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Toluene Bisodium Sulfite", "epdm": "X", "file": "toluene-bisodium-sulfite.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "toluene-bisodium-sulfite", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Toluene Bisodium Sulfite | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Toluene Bisodium Sulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Toluene Diisocyanate (TDI)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Toluene Diisocyanate (TDI) | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Toluene Diisocyanate (TDI)", "epdm": "2", "file": "toluene-diisocyanate-tdi.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "toluene-diisocyanate-tdi", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Toluene Diisocyanate (TDI) | 4 | 2 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Toluene Diisocyanate (TDI) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Toluene Sulfonyl Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Toluene Sulfonyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Toluene Sulfonyl Chloride", "epdm": "4", "file": "toluene-sulfonyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "toluene-sulfonyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Toluene Sulfonyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Toluene Sulfonyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Toluene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Toluene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Toluene", "epdm": "4", "file": "toluene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "toluene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Toluene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Toluene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Toluenesulfonic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Toluenesulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Toluenesulfonic Acid", "epdm": "1", "file": "toluenesulfonic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "toluenesulfonic-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Toluenesulfonic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Toluenesulfonic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Toluidine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Toluidine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Toluidine", "epdm": "4", "file": "toluidine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "toluidine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Toluidine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Toluidine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Toluol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Toluol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Toluol", "epdm": "1", "file": "toluol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "toluol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Toluol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Toluol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Toluquinone\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Toluquinone | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Toluquinone", "epdm": "4", "file": "toluquinone.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "toluquinone", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Toluquinone | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Toluquinone \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tolylaldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tolylaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Tolylaldehyde", "epdm": "1", "file": "tolylaldehyde.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "tolylaldehyde", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Tolylaldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tolylaldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Transformer Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Transformer Oil | 1 | 4 | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Transformer Oil", "epdm": "4", "file": "transformer-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "transformer-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Transformer Oil | 1 | 4 | 2 | 4 | 2 | 4 | 2 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Transformer Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Transmission Fluid Type A\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Transmission Fluid Type A | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Transmission Fluid Type A", "epdm": "4", "file": "transmission-fluid-type-a.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "transmission-fluid-type-a", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Transmission Fluid Type A | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Transmission Fluid Type A \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Triacetin\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 3\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Triacetin | 2 | 1 | 2 | 3 | X | 1 | 4 | 2 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Triacetin", "epdm": "1", "file": "triacetin.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "triacetin", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "3", "silicone": "X", "source_quote": "Triacetin | 2 | 1 | 2 | 3 | X | 1 | 4 | 2 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Triacetin \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Triaryl Phosphate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Triaryl Phosphate | 4 | 1 | 4 | 4 | 3 | 1 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Triaryl Phosphate", "epdm": "1", "file": "triaryl-phosphate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "triaryl-phosphate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Triaryl Phosphate | 4 | 1 | 4 | 4 | 3 | 1 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Triaryl Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tribromomethylbenzene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tribromomethylbenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tribromomethylbenzene", "epdm": "4", "file": "tribromomethylbenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tribromomethylbenzene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Tribromomethylbenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tribromomethylbenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tributoxyethyl Phosphate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tributoxyethyl Phosphate | 4 | 1 | 4 | 2 | X | 1 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Tributoxyethyl Phosphate", "epdm": "1", "file": "tributoxyethyl-phosphate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tributoxyethyl-phosphate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Tributoxyethyl Phosphate | 4 | 1 | 4 | 2 | X | 1 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tributoxyethyl Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tributyl Citrate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tributyl Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Tributyl Citrate", "epdm": "1", "file": "tributyl-citrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "tributyl-citrate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Tributyl Citrate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tributyl Citrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tributyl Mercaptan\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tributyl Mercaptan | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | X | 3 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Tributyl Mercaptan", "epdm": "4", "file": "tributyl-mercaptan.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tributyl-mercaptan", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Tributyl Mercaptan | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | X | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tributyl Mercaptan \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tributyl Phosphate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tributyl Phosphate | 4 | 1 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Tributyl Phosphate", "epdm": "1", "file": "tributyl-phosphate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tributyl-phosphate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Tributyl Phosphate | 4 | 1 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tributyl Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tributylamine\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tributylamine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Tributylamine", "epdm": "X", "file": "tributylamine.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "tributylamine", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Tributylamine | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tributylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trichloroacetic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 4\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trichloroacetic Acid | 2 | 2 | 4 | 2 | X | 2 | 4 | 4 | 3 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Trichloroacetic Acid", "epdm": "2", "file": "trichloroacetic-acid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trichloroacetic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Trichloroacetic Acid | 2 | 2 | 4 | 2 | X | 2 | 4 | 4 | 3 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trichloroacetic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trichloroacetyl Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trichloroacetyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trichloroacetyl Chloride", "epdm": "4", "file": "trichloroacetyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trichloroacetyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Trichloroacetyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trichloroacetyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trichlorobenzene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trichlorobenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trichlorobenzene", "epdm": "4", "file": "trichlorobenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trichlorobenzene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Trichlorobenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trichlorobenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trichloroethane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trichloroethane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trichloroethane", "epdm": "4", "file": "trichloroethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trichloroethane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Trichloroethane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trichloroethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trichloroethanolamine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trichloroethanolamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Trichloroethanolamine", "epdm": "1", "file": "trichloroethanolamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "trichloroethanolamine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Trichloroethanolamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trichloroethanolamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trichloroethylene\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trichloroethylene | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trichloroethylene", "epdm": "4", "file": "trichloroethylene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trichloroethylene", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Trichloroethylene | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trichloroethylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trichloromethane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trichloromethane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trichloromethane", "epdm": "4", "file": "trichloromethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trichloromethane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Trichloromethane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trichloromethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trichloronitromethane (Chloropicrin)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trichloronitromethane (Chloropicrin) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Trichloronitromethane (Chloropicrin)", "epdm": "1", "file": "trichloronitromethane-chloropicrin.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "trichloronitromethane-chloropicrin", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Trichloronitromethane (Chloropicrin) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trichloronitromethane (Chloropicrin) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trichlorophenylsilane\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trichlorophenylsilane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Trichlorophenylsilane", "epdm": "X", "file": "trichlorophenylsilane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "trichlorophenylsilane", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Trichlorophenylsilane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trichlorophenylsilane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trichloropropane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trichloropropane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trichloropropane", "epdm": "4", "file": "trichloropropane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trichloropropane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Trichloropropane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trichloropropane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trichlorosilane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trichlorosilane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trichlorosilane", "epdm": "4", "file": "trichlorosilane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trichlorosilane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Trichlorosilane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trichlorosilane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tricresyl Phosphate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 3\n\n**SBR:** 2\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tricresyl Phosphate | 4 | 1 | 3 | 2 | 3 | 1 | 4 | 4 | 2 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Tricresyl Phosphate", "epdm": "1", "file": "tricresyl-phosphate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tricresyl-phosphate", "kalrez": "1", "neoprene": "3", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "3", "source_quote": "Tricresyl Phosphate | 4 | 1 | 3 | 2 | 3 | 1 | 4 | 4 | 2 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tricresyl Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Triethanol Amine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Triethanol Amine | 3 | 2 | 2 | 2 | X | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Triethanol Amine", "epdm": "2", "file": "triethanol-amine.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "triethanol-amine", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "X", "source_quote": "Triethanol Amine | 3 | 2 | 2 | 2 | X | 2 | 4 | 2 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Triethanol Amine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Triethyl Phosphate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Triethyl Phosphate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Triethyl Phosphate", "epdm": "4", "file": "triethyl-phosphate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "triethyl-phosphate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Triethyl Phosphate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Triethyl Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Triethylaluminum\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Triethylaluminum | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Triethylaluminum", "epdm": "X", "file": "triethylaluminum.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "triethylaluminum", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Triethylaluminum | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Triethylaluminum \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Triethylborane\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Triethylborane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Triethylborane", "epdm": "X", "file": "triethylborane.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "triethylborane", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Triethylborane | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Triethylborane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Triethylene Glycol\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Triethylene Glycol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Triethylene Glycol", "epdm": "1", "file": "triethylene-glycol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "triethylene-glycol", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Triethylene Glycol | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Triethylene Glycol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Triethylenetetramine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Triethylenetetramine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Triethylenetetramine", "epdm": "1", "file": "triethylenetetramine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "triethylenetetramine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Triethylenetetramine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Triethylenetetramine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trifluoroacetic Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trifluoroacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |\n\nSource: \n", "butyl": "1", "chemical": "Trifluoroacetic Acid", "epdm": "1", "file": "trifluoroacetic-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "trifluoroacetic-acid", "kalrez": "2", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Trifluoroacetic Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trifluoroacetic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trifluoroethane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trifluoroethane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trifluoroethane", "epdm": "4", "file": "trifluoroethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trifluoroethane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Trifluoroethane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trifluoroethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trifluoromethane\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trifluoromethane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trifluoromethane", "epdm": "4", "file": "trifluoromethane.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trifluoromethane", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Trifluoromethane | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trifluoromethane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trifluorovinylchloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trifluorovinylchloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trifluorovinylchloride", "epdm": "4", "file": "trifluorovinylchloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trifluorovinylchloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Trifluorovinylchloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trifluorovinylchloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Triisopropylbenzylchloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Triisopropylbenzylchloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Triisopropylbenzylchloride", "epdm": "4", "file": "triisopropylbenzylchloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "triisopropylbenzylchloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Triisopropylbenzylchloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Triisopropylbenzylchloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trimethylamine (TMA)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trimethylamine (TMA) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Trimethylamine (TMA)", "epdm": "1", "file": "trimethylamine-tma.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "trimethylamine-tma", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Trimethylamine (TMA) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trimethylamine (TMA) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trimethylamine\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trimethylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Trimethylamine", "epdm": "1", "file": "trimethylamine.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "trimethylamine", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Trimethylamine | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trimethylamine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trimethylbenzene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trimethylbenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trimethylbenzene", "epdm": "4", "file": "trimethylbenzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trimethylbenzene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Trimethylbenzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trimethylbenzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trimethylborate (TMB)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trimethylborate (TMB) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trimethylborate (TMB)", "epdm": "4", "file": "trimethylborate-tmb.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trimethylborate-tmb", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Trimethylborate (TMB) | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trimethylborate (TMB) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trimethylpentane\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trimethylpentane | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trimethylpentane", "epdm": "4", "file": "trimethylpentane.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "trimethylpentane", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Trimethylpentane | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trimethylpentane \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trinitrololuene (TNT)\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trinitrololuene (TNT) | 4 | 4 | 2 | 4 | X | 4 | 4 | 2 | 2 | X | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Trinitrololuene (TNT)", "epdm": "4", "file": "trinitrololuene-tnt.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "trinitrololuene-tnt", "kalrez": "1", "neoprene": "2", "nitrile": "4", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Trinitrololuene (TNT) | 4 | 4 | 2 | 4 | X | 4 | 4 | 2 | 2 | X | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trinitrololuene (TNT) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trioctyl Phosphate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trioctyl Phosphate | 4 | 1 | 4 | 4 | 3 | 1 | 4 | 4 | 2 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Trioctyl Phosphate", "epdm": "1", "file": "trioctyl-phosphate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "trioctyl-phosphate", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Trioctyl Phosphate | 4 | 1 | 4 | 4 | 3 | 1 | 4 | 4 | 2 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trioctyl Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Triphenylphosphite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Triphenylphosphite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Triphenylphosphite", "epdm": "1", "file": "triphenylphosphite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "triphenylphosphite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Triphenylphosphite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Triphenylphosphite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tripoly Phosphate\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 1\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tripoly Phosphate | 4 | 1 | 3 | 4 | 3 | 1 | 4 | 4 | 2 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Tripoly Phosphate", "epdm": "1", "file": "tripoly-phosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "tripoly-phosphate", "kalrez": "1", "neoprene": "3", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "3", "source_quote": "Tripoly Phosphate | 4 | 1 | 3 | 4 | 3 | 1 | 4 | 4 | 2 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tripoly Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tripotassium Phosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tripotassium Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Tripotassium Phosphate", "epdm": "1", "file": "tripotassium-phosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "tripotassium-phosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Tripotassium Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tripotassium Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Trisodium Phosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Trisodium Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Trisodium Phosphate", "epdm": "1", "file": "trisodium-phosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "trisodium-phosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Trisodium Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Trisodium Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tritium\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tritium | X | X | X | X | X | X | X | X | X | X | X | X | X |\n\nSource: \n", "butyl": "X", "chemical": "Tritium", "epdm": "X", "file": "tritium.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "tritium", "kalrez": "X", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Tritium | X | X | X | X | X | X | X | X | X | X | X | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tritium \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tung Oil (China Wood Oil)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tung Oil (China Wood Oil) | 1 | 4 | 2 | 4 | 4 | 3 | X | 3 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Tung Oil (China Wood Oil)", "epdm": "4", "file": "tung-oil-china-wood-oil.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "tung-oil-china-wood-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "X", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Tung Oil (China Wood Oil) | 1 | 4 | 2 | 4 | 4 | 3 | X | 3 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tung Oil (China Wood Oil) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tungsten Hexafluoride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 2\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tungsten Hexafluoride | X | X | X | X | X | X | X | X | X | X | X | X | 2 |\n\nSource: \n", "butyl": "X", "chemical": "Tungsten Hexafluoride", "epdm": "X", "file": "tungsten-hexafluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "tungsten-hexafluoride", "kalrez": "2", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Tungsten Hexafluoride | X | X | X | X | X | X | X | X | X | X | X | X | 2 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tungsten Hexafluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Tungstic Acid\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Tungstic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Tungstic Acid", "epdm": "X", "file": "tungstic-acid.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "tungstic-acid", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Tungstic Acid | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Tungstic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Turbine Oil #15 (MIL-L-7808A)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Turbine Oil #15 (MIL-L-7808A) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Turbine Oil #15 (MIL-L-7808A)", "epdm": "4", "file": "turbine-oil-15-mil-l-7808a.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "turbine-oil-15-mil-l-7808a", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Turbine Oil #15 (MIL-L-7808A) | 2 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Turbine Oil #15 (MIL-L-7808A) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Turbine Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Turbine Oil | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Turbine Oil", "epdm": "4", "file": "turbine-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "turbine-oil", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Turbine Oil | 1 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Turbine Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Turbo Oil #35\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Turbo Oil #35 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Turbo Oil #35", "epdm": "4", "file": "turbo-oil-35.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "turbo-oil-35", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Turbo Oil #35 | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Turbo Oil #35 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Turpentine\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Turpentine | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Turpentine", "epdm": "4", "file": "turpentine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "turpentine", "kalrez": "1", "neoprene": "4", "nitrile": "1", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Turpentine | 1 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Turpentine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Type I Fuel (MIL-S-3136)(ASTM Ref. Fuel A)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Type I Fuel (MIL-S-3136)(ASTM Ref. Fuel A) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Type I Fuel (MIL-S-3136)(ASTM Ref. Fuel A)", "epdm": "4", "file": "type-i-fuel-mil-s-3136-astm-ref-fuel-a.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "type-i-fuel-mil-s-3136-astm-ref-fuel-a", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Type I Fuel (MIL-S-3136)(ASTM Ref. Fuel A) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Type I Fuel (MIL-S-3136)(ASTM Ref. Fuel A) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Type II Fuel MIL-S-3136\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Type II Fuel MIL-S-3136 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Type II Fuel MIL-S-3136", "epdm": "4", "file": "type-ii-fuel-mil-s-3136.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "type-ii-fuel-mil-s-3136", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "3", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Type II Fuel MIL-S-3136 | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Type II Fuel MIL-S-3136 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Type III Fuel MIL-S-3136(ASTM Ref. Fuel B)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 3\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 2\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Type III Fuel MIL-S-3136(ASTM Ref. Fuel B) | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 2 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Type III Fuel MIL-S-3136(ASTM Ref. Fuel B)", "epdm": "4", "file": "type-iii-fuel-mil-s-3136-astm-ref-fuel-b.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "type-iii-fuel-mil-s-3136-astm-ref-fuel-b", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "3", "polyurethane": "2", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Type III Fuel MIL-S-3136(ASTM Ref. Fuel B) | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | 2 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Type III Fuel MIL-S-3136(ASTM Ref. Fuel B) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Hydrolube J-4\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Hydrolube J-4 | 1 | 1 | 2 | 1 | 1 | 1 | 4 | X | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Hydrolube J-4", "epdm": "1", "file": "ucon-hydrolube-j-4.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ucon-hydrolube-j-4", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Hydrolube J-4 | 1 | 1 | 2 | 1 | 1 | 1 | 4 | X | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Hydrolube J-4 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Lubricant 50-HB-100\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Lubricant 50-HB-100 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Lubricant 50-HB-100", "epdm": "1", "file": "ucon-lubricant-50-hb-100.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-lubricant-50-hb-100", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Lubricant 50-HB-100 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Lubricant 50-HB-100 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Lubricant 50-HB-260\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Lubricant 50-HB-260 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Lubricant 50-HB-260", "epdm": "1", "file": "ucon-lubricant-50-hb-260.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-lubricant-50-hb-260", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Lubricant 50-HB-260 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Lubricant 50-HB-260 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Lubricant 50-HB-5100\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Lubricant 50-HB-5100 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Lubricant 50-HB-5100", "epdm": "1", "file": "ucon-lubricant-50-hb-5100.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-lubricant-50-hb-5100", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Lubricant 50-HB-5100 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Lubricant 50-HB-5100 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Lubricant 50-HB-660\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Lubricant 50-HB-660 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Lubricant 50-HB-660", "epdm": "1", "file": "ucon-lubricant-50-hb-660.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-lubricant-50-hb-660", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Lubricant 50-HB-660 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Lubricant 50-HB-660 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Lubricant 50-HB55\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Lubricant 50-HB55 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Lubricant 50-HB55", "epdm": "1", "file": "ucon-lubricant-50-hb55.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-lubricant-50-hb55", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Lubricant 50-HB55 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Lubricant 50-HB55 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Lubricant LB-1145\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Lubricant LB-1145 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Lubricant LB-1145", "epdm": "1", "file": "ucon-lubricant-lb-1145.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-lubricant-lb-1145", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Lubricant LB-1145 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Lubricant LB-1145 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Lubricant LB-135\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Lubricant LB-135 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Lubricant LB-135", "epdm": "1", "file": "ucon-lubricant-lb-135.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-lubricant-lb-135", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Lubricant LB-135 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Lubricant LB-135 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Lubricant LB-285\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Lubricant LB-285 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Lubricant LB-285", "epdm": "1", "file": "ucon-lubricant-lb-285.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-lubricant-lb-285", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Lubricant LB-285 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Lubricant LB-285 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Lubricant LB-300X\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Lubricant LB-300X | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Lubricant LB-300X", "epdm": "1", "file": "ucon-lubricant-lb-300x.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-lubricant-lb-300x", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Lubricant LB-300X | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Lubricant LB-300X \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Lubricant LB-625\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Lubricant LB-625 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Lubricant LB-625", "epdm": "1", "file": "ucon-lubricant-lb-625.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-lubricant-lb-625", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Lubricant LB-625 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Lubricant LB-625 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Lubricant LB-65\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Lubricant LB-65 | 1 | 1 | 1 | 2 | 1 | 1 | X | 2 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Lubricant LB-65", "epdm": "1", "file": "ucon-lubricant-lb-65.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "ucon-lubricant-lb-65", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Ucon Lubricant LB-65 | 1 | 1 | 1 | 2 | 1 | 1 | X | 2 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Lubricant LB-65 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Oil 50-HB-280x\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Oil 50-HB-280x | 2 | 1 | 2 | X | X | X | X | X | 3 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Ucon Oil 50-HB-280x", "epdm": "1", "file": "ucon-oil-50-hb-280x.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "ucon-oil-50-hb-280x", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Ucon Oil 50-HB-280x | 2 | 1 | 2 | X | X | X | X | X | 3 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Oil 50-HB-280x \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Oil Heat Transfer Fluid 500 (Polyalkalene Glycol)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Oil Heat Transfer Fluid 500 (Polyalkalene Glycol) | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Oil Heat Transfer Fluid 500 (Polyalkalene Glycol)", "epdm": "1", "file": "ucon-oil-heat-transfer-fluid-500-polyalkalene-glycol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-oil-heat-transfer-fluid-500-polyalkalene-glycol", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Oil Heat Transfer Fluid 500 (Polyalkalene Glycol) | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Oil Heat Transfer Fluid 500 (Polyalkalene Glycol) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Oil LB-385\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Oil LB-385 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Oil LB-385", "epdm": "1", "file": "ucon-oil-lb-385.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-oil-lb-385", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Oil LB-385 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Oil LB-385 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Ucon Oil LB-400X\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Ucon Oil LB-400X | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Ucon Oil LB-400X", "epdm": "1", "file": "ucon-oil-lb-400x.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "ucon-oil-lb-400x", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Ucon Oil LB-400X | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Ucon Oil LB-400X \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Undecylenic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Undecylenic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Undecylenic Acid", "epdm": "4", "file": "undecylenic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "undecylenic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Undecylenic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Undecylenic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Undecylic Acid\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Undecylic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Undecylic Acid", "epdm": "4", "file": "undecylic-acid.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "undecylic-acid", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Undecylic Acid | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Undecylic Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Univis 40 (Hydr. Fluid)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Univis 40 (Hydr. Fluid) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Univis 40 (Hydr. Fluid)", "epdm": "4", "file": "univis-40-hydr-fluid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "univis-40-hydr-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Univis 40 (Hydr. Fluid) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Univis 40 (Hydr. Fluid) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Univolt #35 (Mineral Oil)\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Univolt #35 (Mineral Oil) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Univolt #35 (Mineral Oil)", "epdm": "4", "file": "univolt-35-mineral-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "univolt-35-mineral-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Univolt #35 (Mineral Oil) | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Univolt #35 (Mineral Oil) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Unsymmetrical Dimethyl Hydrazine (UDMH)\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Unsymmetrical Dimethyl Hydrazine (UDMH) | 2 | 1 | 2 | 2 | 4 | 1 | X | 1 | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Unsymmetrical Dimethyl Hydrazine (UDMH)", "epdm": "1", "file": "unsymmetrical-dimethyl-hydrazine-udmh.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "unsymmetrical-dimethyl-hydrazine-udmh", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "4", "source_quote": "Unsymmetrical Dimethyl Hydrazine (UDMH) | 2 | 1 | 2 | 2 | 4 | 1 | X | 1 | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Unsymmetrical Dimethyl Hydrazine (UDMH) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** UPDI(Ultrapure Deionized Water)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> UPDI(Ultrapure Deionized Water) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "UPDI(Ultrapure Deionized Water)", "epdm": "1", "file": "updi-ultrapure-deionized-water.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "updi-ultrapure-deionized-water", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "UPDI(Ultrapure Deionized Water) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "UPDI(Ultrapure Deionized Water) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Uranium Hexachloride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Uranium Hexachloride | X | X | X | X | X | X | X | X | 1 | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Uranium Hexachloride", "epdm": "X", "file": "uranium-hexachloride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "uranium-hexachloride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Uranium Hexachloride | X | X | X | X | X | X | X | X | 1 | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Uranium Hexachloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Uranium Hexafluoride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Uranium Hexafluoride | X | X | X | X | X | X | X | X | X | X | X | X | X |\n\nSource: \n", "butyl": "X", "chemical": "Uranium Hexafluoride", "epdm": "X", "file": "uranium-hexafluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "uranium-hexafluoride", "kalrez": "X", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Uranium Hexafluoride | X | X | X | X | X | X | X | X | X | X | X | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Uranium Hexafluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Uranium Sulfate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** X\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Uranium Sulfate | X | X | X | X | X | X | X | X | X | X | X | X | X |\n\nSource: \n", "butyl": "X", "chemical": "Uranium Sulfate", "epdm": "X", "file": "uranium-sulfate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "uranium-sulfate", "kalrez": "X", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Uranium Sulfate | X | X | X | X | X | X | X | X | X | X | X | X | X |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Uranium Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Uric Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Uric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Uric Acid", "epdm": "1", "file": "uric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "uric-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Uric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Uric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Valeraldehyde\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Valeraldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Valeraldehyde", "epdm": "1", "file": "valeraldehyde.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "valeraldehyde", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Valeraldehyde | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Valeraldehyde \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Valeric Acid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Valeric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Valeric Acid", "epdm": "1", "file": "valeric-acid.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "valeric-acid", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Valeric Acid | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Valeric Acid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vanadium Oxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vanadium Oxide | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Vanadium Oxide", "epdm": "4", "file": "vanadium-oxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "vanadium-oxide", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Vanadium Oxide | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vanadium Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vanadium Pentoxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vanadium Pentoxide | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Vanadium Pentoxide", "epdm": "4", "file": "vanadium-pentoxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "vanadium-pentoxide", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "2", "source_quote": "Vanadium Pentoxide | 1 | 4 | 2 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vanadium Pentoxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Varnish\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Varnish | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Varnish", "epdm": "4", "file": "varnish.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "varnish", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Varnish | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Varnish \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vegetable Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 3\n\n**Neoprene (CR):** 3\n\n**SBR:** 4\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vegetable Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | X | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Vegetable Oil", "epdm": "3", "file": "vegetable-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "vegetable-oil", "kalrez": "1", "neoprene": "3", "nitrile": "1", "polyacrylate": "1", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "1", "source_quote": "Vegetable Oil | 1 | 3 | 3 | 4 | 1 | 3 | 1 | X | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vegetable Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Versilube F-50\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Versilube F-50 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Versilube F-50", "epdm": "1", "file": "versilube-f-50.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "versilube-f-50", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Versilube F-50 | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Versilube F-50 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Versilube F44, F55\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Versilube F44, F55 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Versilube F44, F55", "epdm": "1", "file": "versilube-f44-f55.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "versilube-f44-f55", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Versilube F44, F55 | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Versilube F44, F55 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vinegar\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 2\n\n**Neoprene (CR):** 2\n\n**SBR:** 2\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 3\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vinegar | 2 | 2 | 2 | 2 | 3 | 2 | 4 | X | 3 | 4 | 3 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Vinegar", "epdm": "2", "file": "vinegar.md", "fluorosilicone": "3", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "vinegar", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "3", "source_quote": "Vinegar | 2 | 2 | 2 | 2 | 3 | 2 | 4 | X | 3 | 4 | 3 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vinegar \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vinyl Acetate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vinyl Acetate | 2 | 1 | 2 | X | X | X | X | X | 3 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Vinyl Acetate", "epdm": "1", "file": "vinyl-acetate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "vinyl-acetate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Vinyl Acetate | 2 | 1 | 2 | X | X | X | X | X | 3 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vinyl Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vinyl Benzene\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vinyl Benzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Vinyl Benzene", "epdm": "4", "file": "vinyl-benzene.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "vinyl-benzene", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Vinyl Benzene | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vinyl Benzene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vinyl Benzoate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vinyl Benzoate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Vinyl Benzoate", "epdm": "4", "file": "vinyl-benzoate.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "vinyl-benzoate", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Vinyl Benzoate | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vinyl Benzoate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vinyl Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vinyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Vinyl Chloride", "epdm": "4", "file": "vinyl-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "vinyl-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Vinyl Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vinyl Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vinyl Fluoride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vinyl Fluoride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Vinyl Fluoride", "epdm": "4", "file": "vinyl-fluoride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "vinyl-fluoride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Vinyl Fluoride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vinyl Fluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vinylidene Chloride\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vinylidene Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Vinylidene Chloride", "epdm": "4", "file": "vinylidene-chloride.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "vinylidene-chloride", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Vinylidene Chloride | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vinylidene Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vinylpyridine\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vinylpyridine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Vinylpyridine", "epdm": "4", "file": "vinylpyridine.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "vinylpyridine", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "4", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "X", "source_quote": "Vinylpyridine | 2 | 4 | 4 | 4 | X | 4 | 4 | 4 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vinylpyridine \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Vitriol (White)\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Vitriol (White) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Vitriol (White)", "epdm": "1", "file": "vitriol-white.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "vitriol-white", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Vitriol (White) | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Vitriol (White) \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** VV-H-910\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> VV-H-910 | 3 | 1 | 2 | 1 | 2 | 2 | 2 | 2 | 1 | 4 | 2 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "VV-H-910", "epdm": "1", "file": "vv-h-910.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "vv-h-910", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "2", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "VV-H-910 | 3 | 1 | 2 | 1 | 2 | 2 | 2 | 2 | 1 | 4 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "VV-H-910 \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Wagner 21B Brake Fluid\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 3\n\n**Butyl (IIR):** 2\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 2\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Wagner 21B Brake Fluid | 3 | 1 | 2 | 1 | 3 | 2 | X | 2 | 4 | X | 4 | X | 1 |\n\nSource: \n", "butyl": "2", "chemical": "Wagner 21B Brake Fluid", "epdm": "1", "file": "wagner-21b-brake-fluid.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "2", "id": "wagner-21b-brake-fluid", "kalrez": "1", "neoprene": "2", "nitrile": "3", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "3", "source_quote": "Wagner 21B Brake Fluid | 3 | 1 | 2 | 1 | 3 | 2 | X | 2 | 4 | X | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Wagner 21B Brake Fluid \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Water\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 2\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Water | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | 2 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Water", "epdm": "1", "file": "water.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "water", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Water | 1 | 1 | 2 | 1 | 1 | 1 | 4 | 1 | 2 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Water \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "2"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Wemco C\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Wemco C | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Wemco C", "epdm": "4", "file": "wemco-c.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "wemco-c", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Wemco C | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Wemco C \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Whiskey and Wines\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Whiskey and Wines | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Whiskey and Wines", "epdm": "1", "file": "whiskey-and-wines.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "whiskey-and-wines", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Whiskey and Wines | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Whiskey and Wines \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "1", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** White Liquor\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** 1\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> White Liquor | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |\n\nSource: \n", "butyl": "X", "chemical": "White Liquor", "epdm": "1", "file": "white-liquor.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "white-liquor", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "White Liquor | 1 | 1 | 1 | X | X | X | X | X | 1 | X | X | 1 | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "White Liquor \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** White Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> White Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "White Oil", "epdm": "4", "file": "white-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "white-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "White Oil | 1 | 4 | 2 | 4 | 4 | 4 | 1 | 4 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "White Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** White Pine Oil\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> White Pine Oil | 2 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "White Pine Oil", "epdm": "4", "file": "white-pine-oil.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "white-pine-oil", "kalrez": "1", "neoprene": "4", "nitrile": "2", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "White Pine Oil | 2 | 4 | 4 | 4 | 4 | 4 | X | 4 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "White Pine Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Wolmar Salt\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 2\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Wolmar Salt | 1 | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Wolmar Salt", "epdm": "1", "file": "wolmar-salt.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "wolmar-salt", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "2", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Wolmar Salt | 1 | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Wolmar Salt \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Wood Alcohol\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Wood Alcohol | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 4 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Wood Alcohol", "epdm": "1", "file": "wood-alcohol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "wood-alcohol", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Wood Alcohol | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 4 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Wood Alcohol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Wood Oil\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 4\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 3\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 3\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 3\n\n**Fluorosilicone (FVMQ):** 2\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Wood Oil | 1 | 4 | 2 | 4 | 4 | 3 | 1 | 3 | 1 | 3 | 2 | X | 1 |\n\nSource: \n", "butyl": "3", "chemical": "Wood Oil", "epdm": "4", "file": "wood-oil.md", "fluorosilicone": "2", "generated": true, "harvested": "2026-08-12", "hypalon": "3", "id": "wood-oil", "kalrez": "1", "neoprene": "2", "nitrile": "1", "polyacrylate": "1", "polyurethane": "3", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Wood Oil | 1 | 4 | 2 | 4 | 4 | 3 | 1 | 3 | 1 | 3 | 2 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Wood Oil \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Xenon\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 1\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Xenon | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Xenon", "epdm": "1", "file": "xenon.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "xenon", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "1", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Xenon | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Xenon \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Xylene\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Xylene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Xylene", "epdm": "4", "file": "xylene.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "xylene", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Xylene | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Xylene \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Xylidenes-Mixed-Aromatic Amines\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Xylidenes-Mixed-Aromatic Amines | 3 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Xylidenes-Mixed-Aromatic Amines", "epdm": "1", "file": "xylidenes-mixed-aromatic-amines.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "xylidenes-mixed-aromatic-amines", "kalrez": "1", "neoprene": "4", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Xylidenes-Mixed-Aromatic Amines | 3 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Xylidenes-Mixed-Aromatic Amines \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Xylol\n\n**Nitrile (NBR):** 4\n\n**EPDM:** 4\n\n**Neoprene (CR):** 4\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 4\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Xylol | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "4", "chemical": "Xylol", "epdm": "4", "file": "xylol.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "xylol", "kalrez": "1", "neoprene": "4", "nitrile": "4", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Xylol | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Xylol \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zeolites\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zeolites | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zeolites", "epdm": "1", "file": "zeolites.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zeolites", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Zeolites | 1 | 1 | 1 | 1 | X | 1 | X | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zeolites \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Acetate\n\n**Nitrile (NBR):** 2\n\n**EPDM:** 1\n\n**Neoprene (CR):** 2\n\n**SBR:** 4\n\n**Silicone (VMQ):** 4\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 4\n\n**Viton (FKM):** 4\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 4\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Acetate", "epdm": "1", "file": "zinc-acetate.md", "fluorosilicone": "4", "generated": true, "harvested": "2026-08-12", "hypalon": "4", "id": "zinc-acetate", "kalrez": "1", "neoprene": "2", "nitrile": "2", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "4", "silicone": "4", "source_quote": "Zinc Acetate | 2 | 1 | 2 | 4 | 4 | 1 | 4 | 4 | 4 | 4 | 4 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Acetate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "4"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Ammonium Chloride\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Ammonium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Ammonium Chloride", "epdm": "1", "file": "zinc-ammonium-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-ammonium-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Zinc Ammonium Chloride | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Ammonium Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Chloride\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Chloride | 1 | 1 | 1 | 1 | X | 1 | 4 | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Chloride", "epdm": "1", "file": "zinc-chloride.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-chloride", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Zinc Chloride | 1 | 1 | 1 | 1 | X | 1 | 4 | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Chloride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Chromate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Chromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Chromate", "epdm": "1", "file": "zinc-chromate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-chromate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Zinc Chromate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Chromate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Cyanide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Cyanide", "epdm": "1", "file": "zinc-cyanide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-cyanide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Zinc Cyanide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Cyanide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Diethyldithiocarbamate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Diethyldithiocarbamate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Diethyldithiocarbamate", "epdm": "1", "file": "zinc-diethyldithiocarbamate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-diethyldithiocarbamate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Zinc Diethyldithiocarbamate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Diethyldithiocarbamate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Dihydrogen Phosphate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Dihydrogen Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Dihydrogen Phosphate", "epdm": "1", "file": "zinc-dihydrogen-phosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-dihydrogen-phosphate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Zinc Dihydrogen Phosphate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Dihydrogen Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Fluorosilicate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Fluorosilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Zinc Fluorosilicate", "epdm": "X", "file": "zinc-fluorosilicate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "zinc-fluorosilicate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Zinc Fluorosilicate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Fluorosilicate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Hydrosulfite\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Hydrosulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Hydrosulfite", "epdm": "1", "file": "zinc-hydrosulfite.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-hydrosulfite", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Zinc Hydrosulfite | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Hydrosulfite \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Naphthenate\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Zinc Naphthenate", "epdm": "X", "file": "zinc-naphthenate.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "zinc-naphthenate", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Zinc Naphthenate | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Naphthenate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Nitrate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Nitrate | 1 | 1 | X | 1 | X | 1 | 4 | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Nitrate", "epdm": "1", "file": "zinc-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-nitrate", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Zinc Nitrate | 1 | 1 | X | 1 | X | 1 | 4 | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Oxide\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** X\n\n**SBR:** 1\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Oxide | 1 | 1 | X | 1 | X | 1 | 4 | 1 | 1 | X | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Oxide", "epdm": "1", "file": "zinc-oxide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-oxide", "kalrez": "1", "neoprene": "X", "nitrile": "1", "polyacrylate": "4", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "X", "source_quote": "Zinc Oxide | 1 | 1 | X | 1 | X | 1 | 4 | 1 | 1 | X | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Oxide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Phenolsulfonate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Phenolsulfonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Phenolsulfonate", "epdm": "1", "file": "zinc-phenolsulfonate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-phenolsulfonate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Zinc Phenolsulfonate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Phenolsulfonate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Phosphate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Phosphate | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Phosphate", "epdm": "1", "file": "zinc-phosphate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-phosphate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Zinc Phosphate | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Phosphate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Salts\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 1\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Salts | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Salts", "epdm": "1", "file": "zinc-salts.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-salts", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "1", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "1", "source_quote": "Zinc Salts | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Salts \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Silicofluoride\n\n**Nitrile (NBR):** X\n\n**EPDM:** X\n\n**Neoprene (CR):** X\n\n**SBR:** X\n\n**Silicone (VMQ):** X\n\n**Butyl (IIR):** X\n\n**Polyacrylate (ACM):** X\n\n**Hypalon (CSM):** X\n\n**Viton (FKM):** X\n\n**Polyurethane (AU/EU):** X\n\n**Fluorosilicone (FVMQ):** X\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Silicofluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |\n\nSource: \n", "butyl": "X", "chemical": "Zinc Silicofluoride", "epdm": "X", "file": "zinc-silicofluoride.md", "fluorosilicone": "X", "generated": true, "harvested": "2026-08-12", "hypalon": "X", "id": "zinc-silicofluoride", "kalrez": "1", "neoprene": "X", "nitrile": "X", "polyacrylate": "X", "polyurethane": "X", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "X", "silicone": "X", "source_quote": "Zinc Silicofluoride | X | X | X | X | X | X | X | X | X | X | X | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Silicofluoride \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "X"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Stearate\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Stearate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Stearate", "epdm": "1", "file": "zinc-stearate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-stearate", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Zinc Stearate | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Stearate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Sulfate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Sulfate", "epdm": "1", "file": "zinc-sulfate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-sulfate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Zinc Sulfate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Sulfate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zinc Sulfide\n\n**Nitrile (NBR):** 3\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 1\n\n**Silicone (VMQ):** 2\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 3\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zinc Sulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zinc Sulfide", "epdm": "1", "file": "zinc-sulfide.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zinc-sulfide", "kalrez": "1", "neoprene": "1", "nitrile": "3", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "1", "silicone": "2", "source_quote": "Zinc Sulfide | 3 | 1 | 1 | 1 | 2 | 1 | 4 | 1 | 3 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zinc Sulfide \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "3"} {"aflas": "X", "asset": "chemical-elastomer-material-compatibility", "body": "**Chemical:** Zirconium Nitrate\n\n**Nitrile (NBR):** 1\n\n**EPDM:** 1\n\n**Neoprene (CR):** 1\n\n**SBR:** 2\n\n**Silicone (VMQ):** 1\n\n**Butyl (IIR):** 1\n\n**Polyacrylate (ACM):** 4\n\n**Hypalon (CSM):** 1\n\n**Viton (FKM):** 1\n\n**Polyurethane (AU/EU):** 4\n\n**Fluorosilicone (FVMQ):** 1\n\n**Aflas (TFE/P):** X\n\n**Kalrez (FFKM):** 1\n\n**Rating scale:** 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data\n\n> Zirconium Nitrate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |\n\nSource: \n", "butyl": "1", "chemical": "Zirconium Nitrate", "epdm": "1", "file": "zirconium-nitrate.md", "fluorosilicone": "1", "generated": true, "harvested": "2026-08-12", "hypalon": "1", "id": "zirconium-nitrate", "kalrez": "1", "neoprene": "1", "nitrile": "1", "polyacrylate": "4", "polyurethane": "4", "rating_scale": "1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data", "sbr": "2", "silicone": "1", "source_quote": "Zirconium Nitrate | 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 1 | X | 1 |", "sources": ["https://mykin.com/rubber-chemical-resistance-chart-6"], "stale_after": "2028-08-11", "title": "Zirconium Nitrate \u2014 Chemical resistance ratings for common elastomers", "type": "compatibility", "verified": true, "viton": "1"}