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High thermal and oxidative stability due to phenyl group incorporation.
Excellent compatibility with organic resins and vinyl-based polymers.
Reactive vinyl functionality enables covalent bonding in crosslinking systems.
Low volatility and superior hydrophobicity for long-term surface protection.
Tailored viscosity profile (100 cSt at 25°C) ensures optimal processability in coating and encapsulation applications.
Heat-resistant silicone coatings for automotive engine components.
Functional additive in LED encapsulation gels for enhanced refractive index matching.
Crosslinkable base fluid in high-performance RTV-2 silicone elastomers.
Surface modifier for improving release performance in high-temperature composite moldings.
Viscosity adjuster and reactive diluent in silicone pressure-sensitive adhesives (PSAs).
| Chemical Type | Vinylphenylmethyl polysiloxane |
| Product Form | Clear, colorless to pale yellow liquid |
| Appearance | Homogeneous, low-viscosity oil |
| Viscosity (25°C) | 95–105 cSt |
| Specific Gravity (25°C) | 1.02–1.06 g/cm³ |
| Refractive Index (25°C) | 1.495–1.505 |
| Vinyl Content | 0.12–0.18 wt% |
| Phenyl Content | ~35 wt% |
Q1: What distinguishes 9-210-100 from standard methyl silicone oils?
A: 9-210-100 features a vinylphenylmethyl backbone, providing enhanced thermal stability, improved compatibility with aromatic and unsaturated polymer systems, and greater reactivity in hydrosilylation-curable formulations compared to conventional dimethyl silicone oils.
Q2: Is this product suitable for use in high-temperature elastomer applications?
A: Yes — its phenyl and vinyl functional groups contribute to superior thermal resistance and reduced volatility, making it well-suited as a processing aid or reactive modifier in high-temperature silicone rubber and heat-resistant sealant formulations.
Q3: How is 9-210-100 typically incorporated into formulations?
A: It is commonly added during the mixing or dispersion stage of silicone-based systems. Dosage depends on formulation requirements but generally ranges from 0.1% to 2% by weight — sufficient to modify surface properties or enhance crosslinking efficiency without compromising bulk performance.
Q4: Can this silicone oil be used in UV-curable or platinum-catalyzed systems?
A: Yes — the vinyl functionality enables participation in platinum-catalyzed hydrosilylation reactions, and it remains stable under typical UV-curing conditions when properly formulated with compatible photoinitiators and inhibitors.
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