
Low Temperature Dielectric Silicone Fluids
Chemical Name: | Linear Polydimethylsiloxane (Dimethylpolysiloxane) |
Product Category: | Dielectric Silicone Fluids – Silicone Fluids |
Structural Formula: | ![]() |
CAS No.: | CAS No. 63148-62-9 |
EINECS: | 203-492-7 |
Molecular Formula: | C6H18OSi2 |
Molecular Weight: | 162.38 g/mol |
Low Temperature Dielectric Silicone Fluids
Low Temperature Dielectric Silicone Fluids (-80°C to 220°C) are clear, colorless, and odorless Polydimethylsiloxane (PDMS) fluids, designed for extreme temperature stability. They feature high dielectric strength, low viscosity, low viscosity-to-temperature coefficients (VTC), and ultra-low pour points, ensuring minimal viscosity changes even at extremely low temperatures.
These low-temperature silicone fluids are highly compatible with metals, rubbers, and plastics, making them ideal for freeze-drying, heat transfer, and dielectric applications. The PSF-2cSt and PSF-5cSt variants are particularly well-suited for systems requiring low viscosity and excellent cold-temperature performance.
Properties:
- 100% Polydimethylsiloxane Fluids
- Clear, colorless, odorless fluids & inert fluids
- Long service life @ recommended service temperatures
- Low viscosity: will not put strain on pumps.
- Low pour points
- Excellent low temperature stability with little viscosity increase (low VTC)
- Exhibit significantly less viscosity change than petroleum based oils.
- Formulated from 100% synthetic sources.
- Long service life when used for recommended temperature ranges.
- Inert to virtually all bath instrumentation and plastics
- Hydrophobic- will not absorb water
- High Dielectric Strength
Low Temperature Dielectric Silicone Fluids (1.5cSt – 20cSt) | Wide Temperature Stability
Low Temperature Dielectric Silicone Fluids are high-purity, low-viscosity Polydimethylsiloxane (PDMS) fluids designed for dielectric cooling and insulation. These clear, colorless, and odorless silicone oils are chemically inert and compatible with metals, plastics, and rubbers, making them ideal for electronic cooling, transformers, and freeze-drying applications.
Key Features:
✔ High Dielectric Strength: 350-375 volts/mil
✔ Low Pour Points & Wide Service Temperature Range
✔ Minimal Viscosity Change at Low Temperatures (Low V.T.C.)
✔ Thermal Conductivity: 0.10 – 0.15 W/m°C
✔ Hydrophobic & Long Service Life
These low-temperature dielectric fluids are excellent alternatives to Baysilone Oil M3, Dow Corning 200®, Xiameter® PMX-200, Momentive Element 14® PDMS, and Dow Syltherm® XLT & 800.
Packaging Specifications


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Low Temperature Dielectric Silicone Fluids : Guide
Low Temperature Dielectric Silicone Fluids offer excellent thermal stability, low viscosity, and high dielectric strength, making them ideal for:
✔ Dielectric Fluids & Coolants – Electrical insulation & heat dissipation
✔ Heat Transfer Systems – Efficient low-temperature performance
✔ Freeze Drying & Lyophilization – Used in heat transfer baths
✔ Cryostat & Thermostat Fluids – Precise temperature control
✔ Calibration & Circulating Baths – For constant temperature systems
With wide service temperature ranges and superior stability, these silicone fluids ensure reliable performance in heat transfer and cooling applications.