# Flammable liquids — Postal shipping restrictions by item category For Flammable liquids, carrier is Royal Mail Wholesale (Access customers); restriction type is prohibited; scope is UK; conditions is Any liquid with a closed cup flash point below 60.5° C, e.g. acetone, benzene, cleaning compounds, gasoline, lighter fuel, paint thinners, petroleum, solvents, certain alcoholic beverages, perfumes and aftershaves, varnishes and enamels including nail varnish, recorded from its source on 2026-08-10. - **Item category:** Flammable liquids _(verified: appears in the quote below)_ - **Carrier:** Royal Mail Wholesale (Access customers) _(our reading, not quoted from the source)_ - **Restriction type:** prohibited _(our reading, not quoted from the source)_ - **Scope:** UK _(our reading, not quoted from the source)_ - **Conditions:** Any liquid with a closed cup flash point below 60.5° C, e.g. acetone, benzene, cleaning compounds, gasoline, lighter fuel, paint thinners, petroleum, solvents, certain alcoholic beverages, perfumes and aftershaves, varnishes and enamels including nail varnish. _(verified: appears in the quote below)_ ## What the source says > Any liquid with a closed cup flash point below 60.5° C is prohibited e.g. acetone, benzene, cleaning compounds, gasoline, lighter fuel, paint thinners and removers, petroleum and solvents, certain alcoholic beverages, perfumes and aftershaves, varnishes and enamels including nail varnish. ## Source - https://www.royalmailwholesale.com/mint-project/uploads/233157117.pdf Last verified: 2026-08-10. Review by: 2027-08-10. Part of [Postal shipping restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).