Aflas Material O-Rings & Aflas Gaskets
Excellent resistance to a wide variety of aggressive chemicals. Aflas is known for its use in oil field applications and its electrical resistance properties. This elastomer is a copolymer of tetrafluoroethylene (TFE) and propylene. Its chemical resistance is excellent across a wide range of aggressive media.
Both o-rings and gaskets can be made from Aflas materials.
Other Common Names:
Tetrafluoroethylene Propylene, TFE/P, Aflas®
Compound Info | |
ASTM D1418 Designation | FEPM |
ASTM D2000/SAE J200 Type, Class | HK |
Hardness (Shore A) | 60-90 |
Color | black |
Thermal Properties | |
Min Temp. | -14°F (-25.5°C) |
Max Temp. | 446°F (230°C) |


Chemical Resistance
Bases, Phosphate esters, Amines, Engine oils, Steam, Pulp and paper liquors

NOT Compatible
Aromatic fuels, Ketones, Carbon tetrachloride
Disclaimer: These are general guidelines only. All materials should be tested in your application.