Hydroxyl Silicone Oil

Name: Hydroxyl Silicone oil

CAS: 70131-67-8

Color: Colorless

Other Names: Silanol terminated polydimethyl silicone fluid, PDMS, Hydroxy-terminated dimethyl siloxanes

EINECS No.: 213-915-7

Hydroxyl Silicone Oil

Hydroxyl silicone oil is a polydimethylsiloxane fluid whose excellent spreadability allows it to be used as a base oil for personal care products.
Hydrogen silicone oil is clear, tasteless, odorless, and non-greasy.

1.Basic performance

Hydroxyl silicone oil has physiological inert, good chemical stability, electrode and weather resistance, wide viscosity, low solidification point, high lightning Good hydrophobic performance and high shear ability.


2.Typical Properties

Name Hydroxyl silicone oil
Mellow point −59 °C(lit.)
Boiling point 101 °C(lit.)
Density 0.963 g/mL at 25 °C
Vapor density >1 (vs air)
Vapor Pressure <5 mm Hg ( 25 °C)
Odor Odorless
Color Clear colorless
Type Oily Liquid
Water solubility Practically insoluble


3.Mainly characteristic and used


  • Easy to apply and wipe off
  • easy to polish
  • High water repellency, high compressibility
  • High spreadability and compatibility
  • Soluble in many solvents
  • Provides a soft, velvety skin feel
  • Easy to distribute on skin and hair
  • Resistant to oxidation, chemicals, and weather
  • Low surface tension, good thermal stability


The dimethyl silicone oil has a variety of excellent features, so it has been extremely widely used in industrial and agricultural production departments, national defense industries, scientific research and health care. It is widely used in electrical insulation, demolding, defoaming, damping, shockproof, rolling, dustproof, waterproof, high and low moist.
  • Personal care products: creams, lotions, cosmetics, conditioners, lubricants, soap removers, various pastes, lotions, solvent-based polishes, etc.
  •  Cosmetic uses: cosmetic ingredients, elastomers and plastic lubricants, anti-foaming and defoaming agents, film-forming agents.
  •  Industrial application: electrical insulating fluid, mechanical fluid, mold release agent, surfactant, solvent-based surface treatment agent and leather fat liquefaction agent, etc.

4. Package and storage:
Package by 25kgs/50kgs/200kg drum.
It  could be stored well for a long time by avoiding directly to contract with moist environment.

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