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3M™ Dyneon™ Base Resistant Elastomer BRE 7231

3M Product Number BRE 7231
Products
  • Improved resistance to many new amine-containing automotive fluids and other basic chemicals
  • Offers excellent processability and metal adhesion
  • Delivers improved low-temperature sealing performance
  • Proprietary incorporated cure technology may help save time and increase throughput
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Specifications
Attribute Name
Value
Brand
Dyneon™
Capabilities
Temperature Resistance
Composition
Terpolymer made from tetrafluoroethylene, propylene and vinylidien fluoride
Container Type
Box Gallon
Container Volume
2.2 lb., 55 lb.
Cure Technology
Incorporated Cure
Elongation
210 %
Fluorine Content
60 %
Industries
Rubber and Plastic
Manufacturing Segment
Powertrain
Mooney Viscosity
34 MU
Net Weight (Imperial)
2.2 lb, 55 lb
Net Weight (Metric)
1 kg, 25 kg
Post Cure
16 h @ 232°C
Press Cure
10 min @ 177°C
Product Color
Straw
Product Form
Slab
Product Type
FKM
Shelf Life
3 Year
Specific Gravity
1.6
Tensile Strength at Break
13.8 MPa (2,000 psi)
Weight (Imperial)
2.2 lb., 55 lb.
Weight (Metric)
1 kg, 25 kg
Details
  • Improved resistance to many new amine-containing automotive fluids and other basic chemicals
  • Offers excellent processability and metal adhesion
  • Delivers improved low-temperature sealing performance
  • Proprietary incorporated cure technology may help save time and increase throughput
  • Categorized as a type 4 FKM per ASTM D1418

3M™ Dyneon™ Base Resistant Elastomer BRE 7231 is a terpolymer of tetrafluoroethylene, propylene and vinylidene fluoride with a 60% fluorine content. This fluoroelastomer (FKM) offers improved resistance to high-amine oils and lubes, coolants and transmission fluids compared to other type 1 and type 2 FKMs.

Offering Improved Multi-fluid Resistance
Since 3M™ Dyneon™ Base Resistant Elastomer BRE 7231 boasts improved base resistance, it is a good choice for applications including engine, transmission, transfer case or different shaft seals, or as a rubber coating for cylinder head gaskets that require multi-fluid resistance to engine oils and coolants.

Dyneon base resistant elastomer BRE 7231 can be compounded using standard water-cooled internal mixers or two-roll mills with standard fillers and ingredients utilized in typical fluoroelastomer formulations. The dry ingredients should be blended before adding to the masticated gum. For best results, BRE 7231 should be banded on the mill prior to adding the blended dry ingredients. Once mixed, the compounded stocks have good scorch resistance and storage stability.

Different Quantities to Meet the Needs of the Job
Dyneon base resistant elastomer BRE 7231 is packaged in slab form and is available in a returnable bulk shipping container system for 1,320 Ibs (600 kg) of material. The bulk container system is comprised of 48 individual polyethylene bags containing 27.5 Ibs (12.5 kg) of product. Smaller quantities are available in 55.1 Ib (25.0 kg) boxes.

Delivering Custom Solutions
3M offers over 50 grades of fluoroelastomers with varying monomer composition, Mooney viscosity and fluorine content. This broad offering, combined with our expertise in application and product development, translates into greater design flexibility.

For decades, we have been able to supply unique solutions to meet the increasing market challenges in developing and producing state-of-the-art fluoroelastomer products at the highest quality level. This goes hand-in-hand with our unparalleled commitment to research and customer support. Like all of our products, 3M™ Dyneon™ Base Resistant Elastomer BRE 7231 is backed by skilled researchers at several 3M tech service laboratories. Collectively, our staff has decades of experience researching, developing and improving upon fluoroelastomers. Toward that end, we are in regular communication with customers who deliver feedback – allowing us to improve existing products and deliver custom solutions. All of this is part of an unrelenting drive to deliver top products to our customers. From coatings to calendered sheets, tubing to molded goods, 3M has a solution for your specialty application.

Processes and Applications

  • Injection molding
  • Transfer molding
  • Compression molding
  • Bonded shaft seals
  • Other molded goods
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