Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

9-220-500 Hydrogen-containing Phenylmethyl Silicone Oil

Dow Corning® 9-220-500 Hydrogen-containing Phenylmethyl Silicone Oil is a low-viscosity, reactive fluid in the Dow Corning® 9-Series. Featuring Si–H bonds and phenyl/methyl substitution, it serves as a crosslinker or surface modifier in silicone elastomers, release coatings, and functional additives—offering thermal stability, low volatility, and precise reactivity control for high-performance applications.
  • 9 220 500 hydrogen containing phenylmethyl silicone oil_64b7dfb7
  • 9 220 500 hydrogen containing phenylmethyl silicone oil_64b7dfb7

Features Of 9-220-500 Hydrogen-containing Phenylmethyl Silicone Oil

  1. High hydrogen content enables efficient hydrosilylation reactions with alkenes and alkynes.

  2. Phenylmethyl backbone provides enhanced thermal stability and oxidative resistance versus pure methyl silicone oils.

  3. Low volatility and excellent hydrophobicity support long-term performance in high-temperature processing environments.

  4. Controlled viscosity (approx. 500 cSt at 25°C) ensures optimal handling, dispersion, and compatibility with common silicone systems.

  5. Free of solvents and reactive diluents — suitable for high-purity crosslinking applications in electronics and medical-grade silicones.

Typical Applications Of 9-220-500 Hydrogen-containing Phenylmethyl Silicone Oil

  1. Crosslinker in addition-cure liquid silicone rubber (LSR) formulations for automotive and medical components.

  2. Hydrosilylation catalyst carrier in platinum-catalyzed silicone gels and encapsulants.

  3. Functional modifier for heat-resistant coatings and release agents in composite molding.

  4. Base fluid in specialty silicone adhesives requiring thermal resilience and low surface energy.

  5. Reactive intermediate in the synthesis of branched or graft silicone polymers with tailored phenyl/methyl ratios.

Specifications Of 9-220-500 Hydrogen-containing Phenylmethyl Silicone Oil

Chemical TypeHydrogen-containing phenylmethyl polysiloxane
Product FormClear, colorless to pale yellow liquid
AppearanceHomogeneous, free from visible particles or haze
Viscosity (25°C)480–520 cSt (ASTM D2196)
Reactive Hydrogen Content0.45–0.55 wt% (by titration)
Density (25°C)1.03–1.06 g/cm³ (ASTM D1475)
Flash Point (COC)≥300°C (ASTM D92)
Storage StabilityStable ≥12 months at <30°C in sealed, dry, nitrogen-blanketed containers


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