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Dimethyl Silicone Oil

Low Temperature Dielectric Silicone Fluids

Chemical Name:Linear Polydimethylsiloxane (Dimethylpolysiloxane)
Product Category:Dielectric Silicone Fluids Silicone Fluids
Structural Formula:silicone-oil-63148-62-9-_11_65_b_116566
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

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.

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