Silicone Oil 20 cPs (Polydimethylsiloxane PDMS) - Low viscosity Lubricant, Release agent

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Dimethicone 20

A high quality of silicone oil which is clear, water-white, tasteless, odorless and neutral liquid. Its viscosity 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. It exhibits excellent dielectric properties, which are maintained for prolonged periods of time even under varying operating conditions.

Silicone 20 is used in personal care products as it is a good foam builder, It imparts soft silky feel to the hair, ensures smooth wet shaving foams and is non-irritant to skin.

Properties and features of silicone oil 20

  • Chemically Inert
  • Good dielectric characteristics
  • Excellent High & Low Thermal Stability. The fluid is thermally stable at 150°C for extended time intervals.
  • High Water Repellency
  • Low surface tension
  • Low pour point
  • Excellent Lubrication
  • Non-Flammable
  • High Resistance to Oxidation
  • High Resistance to Shear
  • Low surface tension
  • Low viscosity-tempertaure change

Uses of silicone oil 20:

• Release agent.
Used purely or as a part of a compounded formula Silicone 20 provides a non-toxic, non-carbonising mould release for rubber, plastics and metal die-castings.
• Anti-foam agent.
Very small quantities of the fluid are very effective as a foam control agent, especially in non-aqueous systems.
• Mechanical fluid.
The very high viscosity-index, the thermal and chemical stability, shear-breakdown resistance and the rubber compatibility as well as the compressibility make this fluid outstanding for mechanical and hydraulic uses.
• Lubricant.
The fluid provides excellent lubricating properties for most plastic and elastomeric surfaces. Lubricity with metals depends upon the possible combinations such as P.T.F.E., MoS2 and other lubricity improvers.
• In polishes and chemical specialties.
Silicone oil is used in most automobile and furniture polishes for its ease of application, high gloss with a minimum rubbing and durable water repellent film.
• In electrical and electronic equipment. Because of the excellent dielectric properties silicone oil is widely used as an insulating and damping fluid.              


• Good foam builder
• Imparts soft silky feel to the hair
• Ensures smooth wet shaving foams
• Non-irritant to skin

Chemical Properties of Silicone 20:

  • Formula: (-Si(CH3)2O-)n
  • CAS No: 63148–62–9
  • Viscosity: 20 centistokes
  • Freezing Point: –60 oC (closed cup)
  • Flash Point: 230 oC (open cup)
  • Ignition temperature: > 400 oC
  • Density: 0.95 g/cm3 at 20oC
  • Surface tension: 20.6 @25C
  • Refractive index: 1.40

Silicone 20 is insoluble in water, methanol, ethanol, dilute acids and caustics, vegetable and mineral oils, glycol and glycerin. It is soluble in hexane, aromatic hydrocarbons, chlorohydrocarbons, ethers, esters, ketones and higher alcohols. 

Health & Safety:

This product is not classified according to the EU regulations.

Click here for MSDS



Other silicone oils we have available:

Silicone oil 50cPs

Silicone oil 350cPs

Silicone oil 1000 cPs

Silicone oil 5000cPs

Silicone emulsion


PLEASE NOTE: This product is not for human or animal consumption.