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Viton™ VPA-2 is a fluoroelastomer processing aid that helps with various extruded goods such as rubber tubing and complex shapes.
Chemours Viton™ VPA-2 is vegetable wax used as a processing aid in extruding all types of Viton™ fluoroelastomers rubber goods. Viton™ VPA-2 fluoroelastomer processing aid provides a smooth preform, faster cure rate, and proper rubber mold release. Viton™ VPA-2 is generally used in O-rings, seals, tubings, and complex molded profiles. The recommended load rate for Viton™ VPA-2 is 0.5-2 phr. Viton™ VPA-2 extruded fluoroelastomer materials are typically smooth and glossy while having little or no effect on processing safety, cure rate, and stress properties.
Physical Form: Flake
Appearance: Yellow
Specific Gravity: 0.99
Melting Point: 80 °C (176 °F)
Recommended Level, phr: 0.5-2
Smooth and glossy extrusion capabilities for complicated profiles
Fast cure
Excellent mold release
No effect on vulcanizate properties
Premixed compatibility with other compounding materials
Compatibility of elastomers process aids for use in extrusion processes
Availability of vegetable wax process aid in flakes form to prevent dusting issues
Tubing and complex elastomeric profiles
Processing aid in the extrusion of all types of fluoroelastomers including FKM polymers
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