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The Difference between FPM, FKM and Viton®
Dec 05, 2016

Many customers often asked me the difference between FPM, FKM and Viton®, if you are new people in rubber industry, these three designations very often cause confusion and lead to incorrect interpretations. Actually they stand for one single base material: fluoro rubber.

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

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