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Buna-N (Nitrile) is Acrylonitrile-butadiene (the copolymer of Butadiene).
FKM is a fluoroelastomer.

The reason one might choose one over the other is chemical resistance. If you need help selecting which one is best for your application please contact our technical department.
Title: What is the difference between FKM and Buna-N? Why would I choose one over the other?
Description: Buna-N (Nitrile) is Acrylonitrile-butadiene (the copolymer of Butadiene).
Published: 11/3/2009
Last Edited: 9/19/2013
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