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

9-201 Phenylmethyl Silicone Oil

Dow Corning 9-201 Phenylmethyl Silicone Oil is a high-purity, low-viscosity fluid from the Dow Corning® silicone oils series. Featuring phenyl and methyl substituents on the siloxane backbone, it offers exceptional thermal stability, low volatility, and excellent compatibility with organic polymers. Widely used as a release agent, lubricant, and formulation component in coatings, adhesives, and electronics encapsulants.
  • 9 201 phenylmethyl silicone oil_4e742ddf
  • 9 201 phenylmethyl silicone oil_4e742ddf

Features Of 9-201 Phenylmethyl Silicone Oil

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

  2. Superior oxidative resistance due to phenyl group substitution, minimizing degradation in demanding industrial environments.

  3. Broad compatibility with organic solvents, resins, and elastomers—ideal for formulation flexibility in specialty coatings and adhesives.

  4. Low volatility and negligible vapor pressure at room temperature, enhancing workplace safety and shelf-life stability.

  5. Good dielectric properties with stable electrical insulation across wide temperature and frequency ranges.

Typical Applications Of 9-201 Phenylmethyl Silicone Oil

  1. High-temperature heat transfer fluids in semiconductor manufacturing and thermal cycling equipment.

  2. Base fluid in specialty lubricants for aerospace actuators and precision instrumentation requiring low-temperature torque and high-temperature retention.

  3. Release agent component for silicone rubber molding and composite part demolding under elevated curing temperatures.

  4. Viscosity modifier and stabilizer in high-performance optical gels and LED encapsulants.

  5. Dielectric coolant in high-voltage transformers and pulse power capacitors where thermal robustness is critical.

Specifications Of 9-201 Phenylmethyl Silicone Oil

Chemical TypePhenylmethyl-substituted linear polydimethylsiloxane
Product FormClear, colorless to pale yellow liquid
AppearanceHomogeneous, transparent, free of sediment or haze
Viscosity (25 °C, cSt)1000 ± 150
Density (25 °C, g/cm³)1.04–1.07
Refractive Index (25 °C)1.495–1.505
Flash Point (COC, °C)≥310
Volatility (200 °C, 24 h, wt%)≤1.5


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