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Application advantages of dimethyl silicone oil

2025-04-30

Application advantages of dimethyl silicone oil

Dimethyl silicone oil has many application advantages, which are mainly reflected in its unique physical and 

chemical properties and wide applicability. The following is a detailed introduction:


Thermal stability and high and low temperature resistance: Dimethyl silicone oil can remain stable in both high 

and low temperature environments, and its operating temperature range is wide, from -50℃ to 200℃ or even 

higher. This characteristic makes it difficult to decompose in high temperature working environments and difficult 

to solidify at low temperatures, making it suitable for use under extreme temperature conditions.


Excellent electrical insulation performance: Dimethyl silicone oil has high resistivity and low dielectric constant, 

can effectively isolate signals in circuits, and has good voltage resistance. This feature makes it an ideal choice for 

insulating materials in the electrical industry, used to manufacture insulating oils, cable oils, transformer oils, etc.


Good lubricity and shock absorption performance: Dimethyl silicone oil is highly compressible and has excellent lubricity,

which can significantly reduce the friction coefficient, reduce the wear of mechanical equipment, and extend the service 

life. At the same time, it can also be used as a shock absorber oil to improve the performance and life of shock absorbers.


Chemical stability and physiological inertness: Dimethicone oil is non-reactive to most chemicals, has chemical corrosion 

resistance, and is not easily oxidized. In addition, it is non-toxic and harmless to the human body. In the medical field, it 

can be used as a matrix for preparations such as ointments and creams, and has good lubricity and skin permeability.


Low surface tension and hydrophobicity: Dimethicone oil has extremely low surface tension and can form a uniform 

lubricating film on the surface of objects, playing a good lubricating and isolating role. This feature makes it widely 

used in waterproof, dustproof, and mildew-proof coatings.


Defoaming and demoulding properties: Due to its low surface tension and insoluble in water, dimethicone oil is widely 

used as a defoaming agent in the petroleum, chemical, medical, pharmaceutical, food processing and other industries. 

At the same time, its non-stickiness with materials such as rubber, plastic, and metal makes it an ideal choice for 

demoulding agents.


Improve product performance: In cosmetics, dimethicone oil can be used as a moisturizer and softener to improve the 

moisture and smoothness of the skin; in coatings and inks, it can be used as a leveling agent and defoaming agent to 

improve fluidity and surface flatness.


Environmental protection and safety: Dimethyl silicone oil is non-toxic and harmless, meets environmental protection 

requirements, and can be used as a release agent and anti-foaming agent in food packaging and processing to ensure 

food safety.