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Viton™ VC-20
Viton™ VC-20 is a phosphonium salt-based bisphenol (BpAF) accelerator that controls the cure rate of fluoroelastomers containing VF2 and HFP monomers.
Chemours Viton™ VC-20 is an accelerator and curing agent based on 33% benzyl-triphenyl-phosphonium chloride (BTPPC) and 67% Viton™ fluoroelastomer polymer. Viton™ VC-20 controls the rate of curing A, B, and F types of Viton™ FKM fluoroelastomer rubber. Viton™ VC-20 contains a phosphonium-based accelerator and BpAF cross-linking agent that controls the cure rate. Viton™ VC-20 cross-linking agent improves production processes and enhances finished fluoroelastomer rubber polymers.
Viton™ VC-20 is used along with Viton™ VC-30 adjust the cure state and cure rate. Viton™ VC-20 cannot be used with PMVE-containing fluoroelastomer rubber. Viton™ VC-20 can further accelerate the cure rate of the curative containing precompounds while being used with Viton™ VC-50 in gum compounds to impart faster cure speeds.
Specifications
Color: White to off-white Form: Free-flowing pellets Specific gravity: 1.50
Primary Chemistry: 33% organophosphonium salt and 67% fluoroelastomer dipolymer binder
Features & Benefits
Can be easily dispersed Low cost compared to peroxide Very effective as a curative by controlling the rate of curing Can be used with all fluoroelastomers containing VF2 and HFP Fast and controlled curing rate High compression set Reduces scorch
Problems Solved
Slow curing and difficulties to control the cure rate of fluoroelastomers that contains VF2 and HFP monomers Scorch and low compression resistance in the processing of FKM fluoroelastomer polymers
Applications
Accelerator and crosslinker for FKM polymers and rubber compounds
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Thank you for your inquiry and interest in ChemPoint. We will respond to you shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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