Viton™ A-601C, formerly called VTR-6806, is a high-viscosity precompounded fluoropolymer designed for the compression molding of sealing devices.
Viton™ A-601C fluoroelastomer is a fully precompounded A-type dipolymer composed of hexafluoropropylene (HFP) and vinylidene fluoride (VF₂). Viton™ A-601C contains 66% fluorine content and has the highest viscosity compared to all other A-family FKM precompounds.
Viton™ A-601C is recommended for molding applications of simple shapes that require high viscosity. The high viscosity of Viton™ A-601C makes it suitable to blend with other Viton™ types to modify processing characteristics. Viton™ A-601C can be formulated to meet the fluoroelastomer specifications of Mil-R-83248C and AMS 7276E.
Form: Slab
Color: Off-white
Odor: None
Mooney viscosity, ML1 + 10 at 121 °C (250 °F): 60
Specific gravity: 1.82
Storage stability: Excellent
Solubility: Low–molecular weight esters and ketones
Primary Chemistry: Dipolymer of hexafluoropropylene and vinylidene fluoride plus cure chemicals
Fully precompounded with O-ring curative level
High viscosity
Heat resistance
Excellent protection against scorch
Improved compression molding and processing for a high-viscosity polymer
Excellent compression set resistance
Easier mold release
Less mold fouling
Resistance and compatibility of fluoroelastomers for use in compression molding processes
Low performance and production defects of rubbers and elastomers in the compression molding of sealing devices
Fluoroelastomers to meet the MIL-SPEC: Mil-R-83248C and AMS 7276E
Compression molding of O-rings
Simple shapes, rubber parts, and elastomers
Molding operations requiring high viscosity
Engine crank and camshaft seals
Valve stem rubber seals
Valve cover elastomeric seals
Air intake manifold gaskets
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