Silico® | FV4012 Vinyl-Terminated Fluorosilicone Fluid
Silico® FV4012 (CAS 68951-98-4)is a vinyl-terminated fluorosilicone polymer with excellent resistance to fuels, oils, and solvents. Ideal for platinum-catalyzed systems, it’s used in RTV elastomers, sealants, and coatings for harsh environments.
Product Introduction
Silico® FV4012 is a high-performance vinyl-terminated fluorosilicone polymer (CAS No. 68951-98-4), specifically engineered for demanding applications that require superior fuel, oil, and solvent resistance. Featuring vinyl groups at both ends of the fluorosilicone chain, this reactive polymer is ideal for use in platinum-catalyzed addition-curing systems.
The incorporation of trifluoropropyl groups into the siloxane backbone provides exceptional chemical stability, wide thermal operating ranges, and low surface energy. Silico® FV4012 is commonly used in the formulation of advanced RTV elastomers, fluorosilicone rubber, fuel-resistant sealants, and specialty coatings designed for harsh environments, including aerospace and automotive industries.
This fluid is available in a range of viscosities and vinyl content levels, allowing tailored performance in various crosslinking applications.
Technical Specifications
| Property | Typical Value |
|---|---|
| Appearance | Clear, colorless fluid |
| Chemical Structure | Vinyl-terminated poly(methyl-trifluoropropyl)siloxane |
| CAS No. | 68951-98-4 |
| Viscosity @ 25°C (mm²/s) | 100–5000 (customizable) |
| Vinyl Content (wt%) | 0.1–0.5 |
| Fluorine Content (wt%) | ~12–14 |
| Refractive Index (25°C) | 1.390–1.410 |
| Surface Tension (25°C) / (mN/m) | 18–22 |
| Flash Point (°C) | >250 |
| Functional Group | Vinyl (-CH=CH2) end-blocked |
| Solubility | Soluble in most organic solvents; insoluble in water |
Key Features
Reactive vinyl termination for addition-cure systems
Excellent chemical, fuel, and oil resistance
Low surface energy and high thermal stability
Superior compatibility with fluorosilicone RTV and elastomers
Applications
Fuel and solvent-resistant fluorosilicone rubber
Platinum-cured fluorosilicone RTV systems
Aerospace and automotive sealants
Specialty coatings and potting compounds
Packaging & Storage
Packaging: Available in 20Kg, 50Kg, and 200Kg steel drums or fluorinated drums.
Storage: In original unopened packaging, shelf life is one year when stored in a dry and cool place.
All technical data provided is based on current knowledge and experience. Users must test product suitability for intended applications.
No warranties are expressed or implied. Silico® assumes no liability for incidental or consequential damages.
Jessica G.
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