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Ensinger PEI
3M Dyneon™ BRE 7231 Base Resistant Elastomer
Categories: Polymer; Thermoset; Fluoropolymer, TS; Rubber or Thermoset Elastomer (TSE)

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

Information provided by Dyneon, A 3M Company

Vendors:
Available Properties
  • Specific Gravity
  • Mooney Viscosity, ML1+10
  • Hardness, Shore A, ASTM D2240, Press Cure 10 minutes @ 177°C, Post Cure 16 hours @ 232°C
  • Tensile Strength at Break, Press Cure 10 minutes @ 177°C, Post Cure 16 hours @ 232°C
  • Elongation at Break, Press Cure 10 minutes @ 177°C, Post Cure 16 hours @ 232°C
  • 100% Modulus, Press Cure 10 minutes @ 177°C, Post Cure 16 hours @ 232°C
  • Compression Set, Aged 70 hours @ 150° C
  • Compression Set, Aged 70 hours @ 177°C
  • Compression Set, Aged 70 hours @ RT
  • Fluorine, F
  
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Manufacturer Notes:
Dyneon, Division of 3M

Category Notes
Plastic

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