Silico® HF2078 Hydride-Terminated Polyphenylsiloxane Fluid
Silico® HF2078 is a high-performance hydride-terminated polyphenylsiloxane fluid. With its reactive Si-H end groups and high phenyl content, it provides superior thermal stability, oxidation resistance, and compatibility with organic resins. This specialty fluid is commonly used as a crosslinker in platinum-catalyzed addition-cure silicone systems, especially in high-temperature silicone rubbers and resins.
Technical Specifications
| Property | Typical Value |
|---|---|
| CAS NO. | 68952-30-7 |
| Appearance | Clear to light yellow fluid |
| Hydrogen Content (%) | 0.35–0.75 |
| Viscosity (25°C, mm²/s) | 1000–4000 |
| Specific Gravity (25°C) | 1.00–1.01 |
| Refractive Index (25°C) | 1.46–1.52 |
| Volatile Content (%) | ≤2.0 |
| Acid Value (ppm) | ≤5.0 |
| Active Ingredient (%) | 100 |
Key Features
Hydride-terminated for crosslinking in addition-cure systems
Excellent thermal and oxidative stability
Enhanced compatibility with phenyl-based silicone materials
Low volatility, high purity
Applications
Crosslinking agent for high-temperature silicone rubbers
Modifier for phenyl silicone resins
Intermediate in the synthesis of functional silicones
Used in adhesives, coatings, and sealants requiring heat resistance
Packaging & Storage
Packaging: 5kg, 25kg pails; 200kg drums
Storage: Store in cool, dry, sealed containers below 25°C
Shelf Life: 12 months under recommended storage conditions
Transportation: Non-hazardous for standard shipping
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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