Silicone Oil 200cst

Name: Silicone oil

CAS: 63148-62-9

Type: 200cst

Color: Colorless

Other Names: Dimethyl silicone oil 

EINECS No.: 613-156-5

Silicone Oil 200cst

Silicone oil 200cst has high and low temperature resistance, excellent electrical insulation, good aging resistance, low surface tension, non-toxic and tasteless, physiologically inert, low viscosity-temperature coefficient, high compressibility, low volatility properties, good lubricity, etc. It can be used as insulating oil, lubricating oil, damping oil, anti-vibration oil, defoaming agent, mold release agent, mineral oil filler, etc.


1.Basic performance

Commonly used silicone oil, all organic groups are methyl, called methyl silicone oil. In order to improve certain properties of silicone oil and apply to various uses. In recent years, organo-modified silicone oil has developed rapidly, and many organo-modified silicone oils with special properties have appeared. From the point of use, there are damping silicone oil, diffusion pump silicone oil, hydraulic oil, insulating oil, heat transfer oil, brake oil, etc.


2.Typical Properties

Name Silicone oil 200cst
Mellow point −50°C(lit.)
Boiling point 101 °C(lit.)
Viscosity 200
Density 0.965(25℃,g/cucm)
Refractive index 1.403-1.406
Odor Odorless
Color Clear colorless
Type Oily Liquid
Water solubility Practically insoluble


3.Mainly used

The excellent characteristics of this product have enabled industrial production, national defense, scientific research, and medical and health and other departments, which are mainly used for electrical insulation, demolding, defoaming, damping earthquake, hydraulic, dustproof, waterproof and high. Low temperature lubrication and the like.

  • As a defoaming agent: due to its small surface tension and insoluble in water, animal and vegetable oils and high-boiling mineral oils, it has good chemical stability and has been used as a defoaming agent in petroleum, chemical, medical, pharmaceutical, food processing, In textile, printing and dyeing, papermaking and other industries, adding silicone oil has a good defoaming effect.

  • Insulation, dust-proof and mildew-proof coating: dip-coating a layer of dimethyl silicone oil on the surface of glass and ceramics, and heat treatment at 250-300 ℃, it can form a waterproof, mildew-proof and insulating film . It is used to treat insulating devices, which can improve the insulation performance of the device: it can prevent lenses and prisms from getting moldy; it can be used to treat medicine bottles, which can prolong the shelf life of medicines and prevent the loss of preparations due to sticking to the wall

  • it can be used to treat the surface of film films , can play a lubricating role, reduce friction and prolong the life of the film. Lubricant: This product is suitable as lubricant for rubber, plastic bearings and gears. It can also be used as a lubricant for steel-to-steel rolling friction at high temperature, or as a lubricant for steel and other metals. 

  • Application in the electromechanical industry: Dimethicone is widely used in motors, electrical appliances, and electronic instruments as an insulating medium for temperature resistance, arc corona resistance, corrosion resistance, moisture resistance, and dust resistance. It is also used in transformers, capacitors, TVs The impregnating agent of the scanning transformer of the machine, etc. In various machinery, instruments and meters, it is used as liquid shockproof and damping material. The shock absorption performance of dimethyl silicone oil is less affected by temperature, and it is mostly used in instruments such as automobile instruments in occasions with strong mechanical vibration and large changes in ambient temperature. For shock resistance, damping, stabilizing meter readings, and also as a liquid spring.


  • As a release agent: due to the non-stickiness of this product with rubber, plastic, metal, etc., it is also used as a release agent for the molding of various rubber and plastic products. Using it as a release agent not only facilitates release, but also makes the surface of the product Clean, smooth and textured.

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.

Quick Contact
Scroll to Top
What can we do for you?
This website uses cookies to ensure you get the best experience  Privacy policy