March 07, 2017

The Difference Between FPM, FKM and Viton®

A customer asked us 'whats is the difference between FPM, FKM and Viton®'

Its commonly used variant which most people use as a name when they ask for a gasket.

The terms FPM, FKM and Viton® very often cause confusion and lead to incorrect interpretations. All of these designations actually stand for one single base material:fluoro rubber.

 

FPM is the international abbreviation according to DIN/ISO, however
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.