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Viton™ A-HV Pellets
Viton™ A-HV is a gum fluoropolymer with an ultra-high viscosity supplied in pellet form. Viton™ A-HV provides the best resistance to compression sets compared to other A-type polymers.
Fulfilled By ChemPoint
- Manufacturer: Chemours
- Product Line: Viton™ Fluoroelastomer Gum
- Product: Viton™ A Type Gum Polymer
- Industries: Coatings | Elastomers | Metal Processing & Fabrication | Silicones
- Authorized Countries: Canada | United States
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Overview
Viton™ A-HV fluoroelastomer is an A-type gum polymer supplied in pellet form composed of hexafluoropropylene (HFP) and vinylidene fluoride (VF₂).Viton™ A-HV contains 66% fluorine content and is the most vicious of all A-type polymers. Viton™ A-HV offers excellent tensile strength and compression-set resistance. Viton™ A-HV can be cured with both bisphenol and amine-type curatives. As a high-viscosity fluoroelastomer dipolymer, Viton™ A-HV provides vulcanizates with high tensile strength and good resistance to compression sets compared to other bisphenol AF curable types. Viton™ A-HV fluoroelastomers have high-performance applications in products such as O-rings, seals, and gaskets used in volatile and demanding environments like oil and gas exploration. For extrusion processes, Viton™ A-HV offers improved extruded surfaces when processed through a hot die at around 100°C to 140°C.
Specifications
Physical form: Pellets
Appearance: White to tan
Odor: Negligible
Nominal viscosity, ML1 + 10 at 121 °C (250 °F): 100
Specific gravity: 1.82
Storage stability: Excellent
Fluorine, %: ~66
Primary Chemistry: Dipolymer of hexafluoropropylene and vinylidene fluoride
Features & Benefits
Supplied in pellet form
Curable using either bisphenol or diamines
Typically cured with Viton™ VC-50
High tensile strength vulcanizates
Outstanding low-temperature properties
Bisphenol AF and diamine curable
Ultra-high viscosity
Low compression set
Problems Solved
Incompatibility of fluoroelastomer pellets with the production process and preference for sheets
Low resistance to compression sets in common fluoroelastomers compounds
Curing issues in the production of fluoroelastomers with bisphenol and diamine curing agents
Applications
Automotive
Manufacturing parts
Valve stem and shaft seals
Compression molding of gaskets, O-rings, and seals
Gas and oilfield parts, such as packers
Related Chemistries
Coatings
Related End Markets
Elastomers
Metal Processing & Fabrication
Silicones
Related Functions
Elastomers
Related Processes
Elastomers
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