Silicone oil usually refers to a linear polysiloxane product that remains liquid at room temperature, generally a colorless (or light yellow), odorless, non-toxic, and non-volatile liquid. Their molecular weights are not high, and they are in a fluid state at room temperature, so they are usually called silicone oils. It is generally not simply used, but made through special formulations, and is often used as an auxiliary material to produce a certain effect.

Generally speaking, there are 3 basic forms of silicone oil on the market: pure silicone oil, solution, and emulsion.

1. Pure silicone oil has very strong stability

Heat resistance, frost resistance, good storage, with high flash point and high fire point, few storage and transportation problems.

2. In fact, it is often necessary to dilute the silicone oil solution

Sometimes it is desirable to add active adjuvants (catalysts, cross-linking agents, etc.) to the solution to facilitate storage and use, and aliphatic, aromatic or chlorinated hydrocarbons can be used as solvents as needed, and other types of solvents are used in special cases. General polymer polysiloxane solution, the concentration can only be up to 35%, otherwise the viscosity is too high.

3. A large part of silicone oil or products containing silicone oil are made into emulsion form

Compared with solvent silicone oil, it has the advantages of cheap, non-flammable and harmless to health. Unlike solvent-based, all silicone emulsions are "oil-in-water" heterogeneous systems. Its external closed phase is an aqueous phase. The silicone oil is dispersed in the aqueous phase in very fine droplets, which can be easily diluted with water to the desired concentration. For application, the stability of this emulsion can be achieved by making the droplets as fine as possible and by the stabilizing effect of the emulsifier.