What is Silicone Oil 12500 and what is it used for

What is Silicone Oil 12500

A high quality of silicone oil which is clear, water-white, tasteless, odourless and neutral liquid. Silicone 12500 is a linear, 100% Polydimethylsi­loxane Fluid. It has a viscosity similar to honey and shows very little change with temperature variation. It exhibits minimum of change among all types of silicone fluids. Outstanding resistance to high and low temperature extremes, maintenance of flexibility over a wide temperature range are its unique properties. It shows high resistance to breakdown by mechanical shearing. The low change in viscosity with temperature and excellent heat and cold resistance makes it an ideal lubricant.

  • Formula: (-Si(CH3)2O-)n
  • CAS No: 63148–62–9
  • Viscosity: 12500 centistokes
  • Melting Point: –55 oC
  • Boiling Point: > 200 oC
  • Flash Point: 321 oC (closed cup)
  • Density: 0.972 g/cm3 at 20oC
  • Volatile content: 0.17%
  • Refractive index: 1.40
  • Thermal expansion cc/cc C: 0.00096
  • Dielectric Constant 50Hz: 2.75
  • Dielectric Strength volt/mil: 400
  • Thermal Conductivity g/cal/cs/sec C: 0.00038

Silicone fluid for lubrication and siliconization of glass, metals, plastics and rubber.

It is, therefore, widely used in gear wheels, bearings and brushes. It exhibits excellent dielectric properties, which are maintained for prolonged periods of time even under varying operating conditions.

Silicone 12500 cps is suitable for use in viscous couplings.

Properties and features of silicone oil 12500

  • Chemically Inert
  • High Damping Action
  • Excellent Thermal Stability
  • High Water Repellency
  • High Compressibility
  • Excellent for O-Rings, Gaskets and Seals
  • High Viscosity Index
  • Excellent Lubrication
  • Non-Flammable
  • High Resistance to Oxidation
  • High Resistance to Shear

Health & Safety

According to Regulation (EC) No. 1272/2008: Not hazardous.

According to EU Directives 67/548/EEC or 1999/45/EC: Not hazardous


Where to buy Buy Silicone Oil 350 cPs online

Buy silicone Antifoam



About mistralhowto

formulation chemist

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