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YES Viton and FKM are the same!

Fluoroelastomer often referred to as FKM or FPM or as VITON™ the brand name from DuPont which produces it. You may see this rubber listed in different places with these different names, but they are all one and the same. Originally developed by Du Pont, it is produced by a number of companies around the world.

It is also available in Brown or Black color and no matter the color it is still a Fluoroelastomer material.

FKM is the American standard ASTM short form name for Fluro-Elastomer. It is the designation for around 80% of Fluoro-Elastomers defined by ASTM D1418.

VITON™ is a registered trademark of Du Pont performance elastomers, the original developers of the rubber. However, the term Viton is also used as a general name for the material, no matter who the manufacturer is.

FPM is Fluoro-Elastomer’s DIN/ISO international abbreviation.

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Full line of Metric Hydraulic Seals including U cups, Wipers, Buffer seals, Rod and Piston seals, Wear Bands, V seals and Piston Cups. Largest selection of Metric Oil Lip Seals in Buna and FKM. Metric O-ring cord stocked in all materials. Metric Industrial/Construction Equipment Seal kits.

If you don't see the metric seal you need please ask as we are adding sizes to stock all the time.