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

9-275 Phenylmethyl Silicone Oil

Dow Corning® 9-275 Phenylmethyl Silicone Oil is a high-purity, low-volatility fluid from the Dow Corning® silicone oils series. Featuring phenyl and methyl substituents on the siloxane backbone, it delivers exceptional thermal stability, low surface tension, and outstanding compatibility with organic polymers—ideal for specialty coatings, release agents, and high-temp lubricants.
  • 9 275 phenylmethyl silicone oil_3012f1ac
  • 9 275 phenylmethyl silicone oil_3012f1ac

Features Of 9-275 Phenylmethyl Silicone Oil

  1. Excellent thermal stability up to 250 °C, maintaining viscosity integrity under prolonged high-temperature exposure.

  2. Superior oxidative resistance due to phenyl group incorporation, minimizing degradation in air-rich environments.

  3. Low volatility and high flash point, enhancing safety during high-temperature processing and storage.

  4. Broad compatibility with organic resins, elastomers, and coating systems without phase separation.

  5. Outstanding electrical insulation properties with low dielectric loss across wide temperature and frequency ranges.

Typical Applications Of 9-275 Phenylmethyl Silicone Oil

  1. High-temperature heat transfer fluids in industrial ovens and curing systems.

  2. Dielectric coolant and impregnation medium for high-voltage transformers and electronic encapsulants.

  3. Release agent for silicone rubber and polyimide film molding at elevated temperatures.

  4. Base fluid in specialty lubricating greases for aerospace and automotive precision bearings.

  5. Viscosity modifier and surface conditioner in high-performance protective coatings and anti-stick formulations.

Specifications Of 9-275 Phenylmethyl Silicone Oil

Chemical TypePhenylmethyl polysiloxane
Product FormClear, colorless to pale yellow liquid
AppearanceHomogeneous, transparent, odorless
Viscosity (25 °C, cSt)275 ± 15
Density (25 °C, g/cm³)1.03–1.06
Flash Point (COC, °C)≥ 310
Refractive Index (25 °C)1.520–1.535
Key FeaturesThermally stable, oxidation resistant, low volatility, electrically insulating


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