Polydimethylsiloxane uses

Methyl silicone oil  is colorless and odorless, and does not affect the appearance and aroma of 

the final product. It is light and pleasant to use and has good expandability: good hydrophobicity 

and smoothness.

The role of methyl silicone oil 

Coatings, plastics

Adding a very small amount of dimethylpolysiloxane

 topaint and ink can make the color uneven, make

the painted surface more uniform, enhance the

brightness and smoothness.Dimethicone with high

viscosity can also be used as a defoamer for coatings: the method and amount of use

must be correct, otherwise the opposite effect will occur. The coating after adding 

dimethylpolysiloxane has poor compatibility with other coatings, and it is difficult to mix 

with each other. It isrecommended that the addition amount of silicone fluid be controlled 

within 0.01%-0.5%.

       Adding polydimethylsiloxane to the thermoplastic resin will improve the mold release of the

plastic and the dispersibility of the inorganic filler in the resin, and the fluidity of the resin and the

lubricity and wear resistance of the surface of the product will be improved. Adding  dimethicone

to POM, PA, HPS, ABS and other resins has been widely used to produce wear-resistant and

lubricated plastic parts.

Electrical insulating oil

      Because  dimethicone has good chemical stability, thermal stability, electrical properties and flame retardancy,

its application in electrical insulation continues to grow. Compared with mineral oil insulating oil, silicone oil has

very good flame retardancy, and is non-toxic and harmless to human body and environment; automotive 

transformer oil has been commonly used in Japan, which further confirms its high durability.

Shock absorption, damping 

     Due to its viscosity-temperature properties, wide viscosity range, thermal stability and high compressibility,

dimethyl silicone fuild is widely used as shock absorption and damping oil in machine manufacturing and

 instrumentation industries.For example, high viscosity silicone oil with a viscosity (25 degrees) of tens of thousands 

to hundreds of thousands of mm2.s-1 is added to the torsional absorption damper of diesel engines used in 

generators, vehicles and ships, which can improve the durability of the engine. Damping oil is used in automotive

engine cooling fans. On four-wheel drive vehicles, the viscous clutch oil  use dimethyl siloxane with viscosity of

 10pas the drive mechanism switching operation will be improved; it can improve the performance of sharp turns or

 running in snow and mud.

Medical and food

      In the United States, Japan and other countries, there are special standards for use in the medical field, and

 China has also entered the Pharmacopoeia and used it as an additive for external medicine and an ingredient in 

gastrointestinal medicine. The addition of dimethicone in food grade is mainly used for defoaming in the food 

manufacturing process. For example: tofu, jam, ice cream, juice, coffee, etc.

     Finally,Adding medium-viscosity PDMS and methyl phenyl silicone oil to various daily skin care  products can

 greatly improve the expandability of cosmetics on the skin and have a protective effect on the skin: adding PDMS 

and methyl phenyl silicone oil Phenyl silicone oil in eye shadow and lipstick can make hair smoother; adding a small

 amount of dimethicone in shaving cream can increase skin lubrication.Since low viscosity silicone oil and dimethyl 

cyclosiloxane are volatile, they can be added to antiperspirant and body shampoos as a dispersant for

 antiperspirant ingredients and impart a cooling sensation.