# PTFE (Teflon) — Galvanic series and surface energy of engineering materials

For PTFE (Teflon), surface energy (dyne/cm) is 18–20; condition is Inert; needs treatment? is Very Difficult, verified against its source on 2026-08-04.

- **Material:** PTFE (Teflon)
- **Surface energy (dyne/cm):** 18–20
- **Condition:** Inert
- **Needs treatment?:** Very Difficult

## What the source says

> PTFE (Teflon) | 18–20 | Inert | Very Difficult | Dyne test fluids | Non-stick surface |

## Source

- https://kolorguide.com/surface-energy-chart-by-material/

Last verified: 2026-08-04. Review by: 2028-08-03.
Part of [Galvanic series and surface energy of engineering materials](https://referencesource.org/process-compatibility-coatings-adhesives-treatments/).