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DuPont Elastomers Viton® B-202 Formulation

 

Subcategory: Fluoropolymer, TS; Elastomer, TS; Thermoset

Close Analogs: This former DuPont Dow Elastomers product line is now produced by DuPont Performance Elastomers.

Material Notes:
Formulation
Viton® B-202100
MT Black (N-990)30
Calcium Hydroxide6
High-Activity MgO3
Viton® Curative No. 502.5
Viton® Curative No. 200.5

Description: Viton® B-202 is a low viscosity, B-type gum polymer that demonstrates improved processing and rheology when compared with existing fluoroelastomers. Viton® B-202 is designed to be cured with either Viton® Curative #30 or Viton® Curative #50. When using Viton® Curative #30, use Viton® Curative #20 in a ratio of about 1.8 Viton® Curative #30 to Viton® Curative #20. When using Viton® Curative #50, use 0.3–0.5 phr of Viton® Curative #20 to ensure a fast cure rate. Note that Viton® Curative #20 can be difficult to mix into low viscosity stocks, such as those based on Viton® B-202, and careful attention needs to be paid to mixing procedures. Compared with other B-family terpolymers, Viton® B-202 provides:

  • Low viscosity
  • Improved processing
  • Increased mold flow
  • Excellent mold release

Applications:

  • Transfer and injection molding of complex shapes
  • Extrusions (e.g., fuel hose and tubing)
  • Solution coatings of fabrics, tanks or chemical containers

Viton® B-202 can be blended with other Viton® types to modify viscosity, enhance processability and/or improve flow.

Information provided by manufacturer.

Available Properties
  • Mooney Viscosity
  • Hardness, Shore A
  • Tensile Strength, Ultimate
  • Elongation at Break
  • 100% Modulus
  • Compression Set, Elevated Temperature
  
Property Data

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