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The Difference between FPM, FKM and Viton


The terms FPM, FKM and Viton® very often cause confusion and lead to incorrect interpretations. In the fact, No difference between FPM, FKM and Viton®. All of these designations actually stand for one single base material: Fluoroelastomer rubber.

FPM is the international abbreviation according to DIN/ISO, whereas
FKM is the short form for the fluoroelastomer category according to the American standard ASTM.
Viton® is the registered trade mark of DuPont Performance Elastomers.

Viton Rubber Material