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

DOW DOWSIL 345 Fluid

DOW DOWSIL 345 Fluid is a high-purity, low-viscosity silicone fluid from Dow’s DOWSIL™ series, widely used as a dielectric coolant, lubricant, and heat-transfer medium in electronics and industrial applications due to its thermal stability, chemical inertness, and excellent electrical insulation properties.
  • dow dowsil 345 fluid_dedf516e
  • dow dowsil 345 fluid_dedf516e

Features Of DOW DOWSIL 345 Fluid

  1. Highly stable, low-viscosity silicone fluid with excellent thermal and oxidative resistance.

  2. Non-volatile and non-yellowing, maintaining clarity and performance over extended service life.

  3. Compatible with a broad range of elastomers, plastics, and coatings without adverse interaction.

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

  5. Meets RoHS and REACH compliance requirements for restricted substances.

Typical Applications Of DOW DOWSIL 345 Fluid

  1. Lubricant for precision mechanical components in automotive and industrial systems.

  2. Release agent for silicone rubber molding and composite manufacturing processes.

  3. Dielectric fluid in high-voltage transformers and electronic encapsulation formulations.

  4. Carrier fluid for specialty additives in personal care and cosmetic emulsions.

  5. Component in heat-transfer fluids for closed-loop thermal management systems.

Specifications Of DOW DOWSIL 345 Fluid

Chemical TypeLinear polydimethylsiloxane (PDMS)
Product FormClear, colorless liquid
AppearanceClear, water-white, odorless
Viscosity at 25°C350 cSt (typical)
Density at 25°C0.97 g/cm³ (typical)
Flash Point (COC)310°C (typical)
Refractive Index at 25°C1.402 (typical)
Primary ApplicationsLubrication, release, dielectric, carrier fluid


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