3M™ Dyneon™ Fluoroelastomer BRE 7231 is a Base  Resistant Fluoroelastomer containing 60% fluorine. It is a  bisphenol cured terpolymer and is categorized as a type  4 FKM per ASTM D1418. This product offers improved  resistance to high amine containing oils and lubes,  coolants and transmission fluids as compared to Type 1  and Type 2 FKM’s. Possible applications for BRE 7231 are  engine, transmission, transfer case or differential shaft  seals or as a rubber coating for cylinder head gaskets,  where multifluid resistance to engine oils and coolants  is required.

Features and Benefits: 

• Composition:  Terpolymer of  tetrafluoroethylene propylene  and vinylidene fluoride • Improved resistance to many  new types of amine containing  automotive fluids and other  basic chemicals • Improved low temperature  sealing performance • Possible applications:  bonded shaft seals and other  molded goods • Excellent processability and  metal adhesion • Possible processes:  injection, transfer and  compression molding • Proprietary incorporated  cure technology