Viton™ B-202 is a low viscosity fluoropolymer gum that can be used in various molding applications and coatings. Viton™ B-202 can be cured with Viton™ VC-30 or Viton™ VC-50.
Viton™ B-202 is a B-type fluoroelastomer gum that is composed of hexafluoropropylene (HFP), vinylidene fluoride (VF₂) and tetrafluoroethylene (TFP).
Viton™ B-202 has 68.5% fluorine content and best suited for extrusion applications when low viscosity is required. Viton™ B-202 also offers lower MeOH permeability compared to the Viton™ A-type fluoropolymers.
Physical Form: Slab
Appearance: Silver-gray, translucent
Odor: None
Nominal Viscosity, ML1 + 10 at 121 °C (250 °F): 20
Specific Gravity: 1.84
Storage Stability: Excellent
Solubility Low molecular weight esters and ketones
Primary Chemistry: Terpolymer of hexafluoropropylene, vinylidene fluoride, and tetrafluoroethylene with cure chemicals
Improved compression set resistance
Excellent for extrusion and calendaring
Reduced mold fouling
Increased mold flow
Improved processing properties
Transfer and injection molding of complex shapes
Extrusion elastomeric applications
Fabrics, tanks and chemical container coating solutions
Viscosity modifier when blended with other gum polymers
Engine cranks and camshaft seals
Wire insulation and elastomeric jacketing
Valve covers and fuel sender seals
Gaskets and O-rings and membranes
Fuel duct expansion joints and parts
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