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

DOW DOWSIL 670 Silicone Fluid

DOW DOWSIL 670 Silicone Fluid is a low-viscosity, high-purity polydimethylsiloxane (PDMS) from Dow’s DOWSIL™ portfolio. Designed for lubrication, damping, and release applications, it offers excellent thermal stability, low surface tension, and compatibility with plastics and elastomers. Widely used in automotive, electronics, and personal care industries.
  • dow dowsil 670 silicone fluid_91f13188
  • dow dowsil 670 silicone fluid_91f13188

Features Of DOW DOWSIL 670 Silicone Fluid

  1. High-viscosity, linear polydimethylsiloxane (PDMS) fluid offering excellent thermal stability and low volatility.

  2. Outstanding shear stability and long-term viscosity retention under mechanical stress.

  3. Low surface tension and superior spreading characteristics for uniform film formation.

  4. Hydrophobic and chemically inert across a broad pH range, resistant to oxidation and UV degradation.

  5. Non-toxic, non-staining, and compliant with FDA 21 CFR 178.3570 for incidental food contact applications.

Typical Applications Of DOW DOWSIL 670 Silicone Fluid

  1. Lubricant base oil in high-performance greases for automotive and industrial bearings.

  2. Formulation component in release agents for rubber, plastic, and composite molding.

  3. Carrier fluid in polishes, coatings, and protective treatments for metals and elastomers.

  4. Viscosity modifier and conditioning agent in specialty personal care formulations (e.g., hair conditioners, skin emollients).

  5. Dielectric fluid in low-voltage electronic encapsulants and thermal interface materials.

Specifications Of DOW DOWSIL 670 Silicone Fluid

Chemical TypePolydimethylsiloxane (PDMS), linear
Product FormClear, colorless liquid
AppearanceClear, water-white, odorless
Viscosity (25°C, cSt)Approx. 60,000–70,000
Density (25°C, g/cm³)0.97–0.98
Refractive Index (25°C)1.402–1.405
Flash Point (COC, °C)≥300
Volatility (150°C, 24 h, % wt loss)<1.0


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