Packing: 5kg, 10kg, 25 kg plastic drum Storage:Store in a cool and shady place, sealed, a storage period of 1 year. Transportation: Non-dangerous goods, avoid violent oscillation, can not be inverted
Welcome to our product page for High-Performance Vinyl Fluorosilicone Oil (CAS 68951-98-4). This specialized class of silicone polymers is engineered for demanding applications where resistance to aggressive fuels, solvents, oils, and chemicals is critical. Featuring reactive vinyl functional groups, this fluid serves as a key base polymer that can be cured into durable thermoset elastomers (Fluorosilicone Rubber, or FVMQ), or used as a reactive additive in various formulations, providing exceptional performance in harsh environments.
Vinyl Fluorosilicone Oil is a type of polysiloxane polymer that incorporates fluorine atoms into its molecular structure, alongside the standard silicone-oxygen backbone and organic groups. Crucially, it also contains reactive vinyl (CH=CH₂) groups, typically located at the ends of the polymer chains or pendant along the chain. The combination of these features provides:
Silicone Backbone: Contributes flexibility, thermal stability, and good electrical properties.
Fluorine Content: Imparts excellent resistance to swelling and degradation from contact with fuels, oils, and many aggressive chemicals and solvents.
Vinyl Groups: Serve as reaction sites for crosslinking (curing) with suitable curing agents (like hydride-functional silicones or organic peroxides), allowing the fluid to be transformed into a solid, elastic material (FVMQ rubber).
Our Vinyl Fluorosilicone Oil offers a powerful combination of properties:
Exceptional Fuel, Oil, and Solvent Resistance: Stands up to contact with gasoline, diesel, jet fuels, alcohols, chlorinated solvents, lubricants, and various industrial chemicals where conventional silicones would swell and degrade.
Wide Operating Temperature Range: Maintains flexibility and performance across a broad temperature spectrum, characteristic of silicone materials.
Excellent Chemical Resistance: Resists attack from many corrosive substances.
Reactive Vinyl Functionality: Allows for controlled crosslinking via addition cure (platinum catalyzed) or peroxide cure systems to form robust FVMQ elastomers.
High Flash Point (≥ 240°C): Indicates low volatility and significantly reduced fire hazard compared to many organic fluids.
Good Dielectric Properties: Provides electrical insulation characteristics typical of silicone polymers.
Available in Different Vinyl Contents: Allows tailoring the curing speed, crosslink density, and final physical properties of the cured elastomer.
We offer Vinyl Fluorosilicone Oil in different grades based on their vinyl content, allowing for flexibility in formulating cured rubber compounds and other applications. Below are typical properties for our DS441 and DS442 grades:
| Item | Units | DS441 | DS442 |
| Appearance | / | Colorless transparent or translucent liquid | |
| Vinyl Content | wt % | 1-3 | 3-8 |
| Density | g/cm3 | 1.10-1.30 | |
| Viscosity ( 25°C ) | mPa.s | 100-5000 | |
| Volatile matter ( 200°C, 4h ) | % | ≤5 | |
| PH Value | / | 5.5-7.0 | |
| Flash Point | °C | ≥240 | |
Note: The values presented in this table are typical properties and should not be used for establishing specifications. Vinyl Content is a key parameter affecting curing characteristics. Density and Viscosity ranges cover both grades. Volatile matter specified for DS442. Please consult the official technical data sheet for precise specification limits and test conditions.
Vinyl Fluorosilicone Oil (CAS 68951-98-4) is primarily used as a base polymer or additive in the formulation of materials for demanding environments:
FVMQ Rubber Compounds: As the main component in formulating fluorosilicone rubber for molded parts.
Seals and Gaskets: For fuel systems, automotive, aerospace, and chemical processing equipment requiring resistance to fuels, oils, and solvents.
Hoses and Tubing: Used in fuel lines and other fluid transfer applications.
O-rings and Diaphragms: In pumps, valves, and regulators handling aggressive media.
Coatings and Linings: Providing protective barriers with chemical and solvent resistance.
Adhesives and Sealants: Formulating specialty products for bonding or sealing in harsh environments.
Molded Parts: Components requiring high-temperature performance combined with chemical resistance.
The vinyl groups in Vinyl Fluorosilicone Oil enable it to be crosslinked (cured) into a solid elastomer. This is typically achieved using platinum-catalyzed addition cure systems (reaction with Si-H functional silicones) or organic peroxide cure systems. The specific curing method and formulation depend on the desired properties of the final FVMQ rubber or silicone product. Different vinyl contents (as seen in DS441 and DS442) influence reactivity and the potential for higher crosslink density.
For applications that challenge the limits of conventional elastomers, our Vinyl Fluorosilicone Oil (CAS 68951-98-4) provides the crucial combination of chemical resistance, thermal stability, and processability via curing. We offer reliable quality suitable for formulating high-performance FVMQ rubber compounds and specialty silicones.
Ready to enhance the performance of your materials in harsh environments? Contact us today to discuss your specific application, formulation requirements, and desired properties of the cured product. We can provide detailed technical data sheets for our DS441 and DS442 grades, offer technical support on its use as base polymers or additives, and discuss sample availability for testing.
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