Silicone oil is usually refers to the linear polysiloxane products that maintain a liquid state at room temperature. It is generally colorless, tasteless and non-volatile liquid. Silicone oil has the division of product and second product. Silicone oil primary product refers to the unprocessed silicone oil, including carbon functional silicone oil, silicone functional silicone oil and non-functional modified silicone oil, etc. Silicone oil secondary products are silicone oil as raw materials, with surfactants, additives and solvents, and processed into grease, emulsion and other silicone oil products.


Silicone oil secondary product shape and performance has changed greatly, the scope of its adaptation is wider, at present, the silicon oil primary product and the silicon oil secondary product market size has been comparable.
Silicone grease and silicone paste are the main varieties of silicone oil secondary products. They are all based on silicone oil, with thickener, stabilizer, and modified additives, and made of mixed grinding products. People generally will be thickened by metal soap lubrication products called silicone grease, and the non-soap (mainly white carbon black) thickened products called silicone paste. The components of silicone grease and silicone paste are base oil, thickener, stabilizer and modified additive.
Silicone grease and silicone paste can be made into a variety of different uses of products: general silicone grease, cold lubrication silicone grease, heat lubrication silicone grease, demoulding silicone grease, dielectric silicone paste, sealing silicone paste, heat dissipation silicone paste, transparent silicone paste, etc..


The upper limit of the temperature at which silicone grease can be used depends on the melting point of the thickener metal soap and also on the type of base oil. Metal soaps, especially lithium soaps, have hydrolysis resistance, high melting point and stable properties in a wide temperature range. Compared with commonly used petroleum grease, silicon grease prepared by thickening has higher melting point, less oil separation and thermal weight loss, high oxidation stability, water resistance and chemical reagents resistance.
The comprehensive performance of silicon paste also depends on the base oil, thickener, modified additives and the amount of. The use of silica paste thickened by gas phase method white carbon black, its appearance is mostly white paste, drop point is mostly higher than 250℃, has excellent heat resistance, hydrophobicity, electrical insulation, in a wide temperature range (-60-200℃), does not cure nor melt, and its consistency and electrical properties change is very small. Silicon paste with different uses can be produced by changing the variety of base oil and the amount of silica black, especially by mixing different modified additives. Silica paste is mainly used for electrical insulation and moisture - proof, lubrication, sealing and shock - proof. The silicon paste thickened by carbon black has good temperature resistance. Silica paste thickened by VAT dyes has good radiation resistance and is suitable for lubrication under high temperature and high speed conditions.