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Viton™ A-361C
Viton™ A-361C, formerly VTR-7152, is a precompounded fluoropolymer with excellent mold flow and tear resistance. Viton™ A-361C is used when good adhesion to metal is required.
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- Manufacturer: Chemours
- Product Line: Viton™ Fluoroelastomer Precompounds
- Product: Viton™ A Type Precompound
- Industries: Coatings | Elastomers | Metal Processing & Fabrication | Plastics
- Authorized Countries: Canada | United States
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Authorized Countries
Canada
United States
Overview
Viton™ A-361C fluoroelastomer is a fully precompounded A-type dipolymer composed of hexafluoropropylene (HFP) and vinylidene fluoride (VF₂). Part of A-family dipolymers, this grade of Viton™ contains 66% fluorine content and is recommended in the compression and injection molding of parts that require good metal adhesion. The moderate viscosity of Viton™ A-361C makes it suitable for the compression molding of complex shapes while featuring a fully precompounded material that helps reduce curative levels and promote incorporated metal adhesion. Viton™ A-361C allows for improved processing as it has an increased mold flow property, making the FKM product easier to release from the mold with less fouling.
Specifications
Form: Slab
Color: Off-white
Odor: None
Nominal viscosity, ML1 + 10 at 121 °C (250 °F): 30
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
Features & Benefits
- Intermediate viscosity level compared to Viton™ A-201C/Viton™ A-401C
- Fully precompounded
- Improved mold flow
- Easier mold release and heat resistance
- Less mold fouling
- Chemical resistance
- Improved demolding and hot tear
- Reduced curative level
- Incorporated adhesion promotor
- Good metal bonding with standard primers
Problems Solved
Adhesion and bonding issues of elastomers to metals and standard primers High loading of curing agents and cross-linkers for proper processing of fluoroelastomer compounds Cross-linking and curing difficulties of Viton™ gums FKM molded products experiencing hot tear and casting defects
Applications
Compression molding of O-rings, gaskets, and rubber parts Injection molding of elastomeric parts, such as O-rings and gaskets Transfer molding of O-rings and gaskets Engine crank and camshaft seals Valve stem rubber seals Valve cover elastomeric shaft seals Air intake manifold gaskets
Related Chemistries
Coatings
Related End Markets
Elastomers
Metal Processing & Fabrication
Plastics
Related Functions
Elastomers
Related Processes
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