Silicone surface treatment powder is currently the most widely used surface treatment powder, which is widely used in products such as pressed powder, eye shadow, blush, liquid foundation and so on. The siloxane-treated powder is chemically bonded with siloxane molecules on the surface of the powder particles, so it has excellent water resistance, ductility, fluidity, dispersibility and adsorption, and has a smooth and smooth skin feel. Especially when it is used in silicone oil system, it can achieve good results.

Excluding the most basic silicone oil polydimethylsiloxane, this category is further subdivided as follows:
Hydrogen-containing polydimethylsiloxane
Hydrogen-containing silicone oil has been used in surface treatment agents for a long time. Because it contains a certain number of relatively active Si-H bonds, it can react with chemical substances containing active groups such as double bonds and hydroxyl groups under the action of catalysts to form Various silicon products with various special functions are cross-linked on the surface of various substrates to form a waterproof membrane. However, if the catalyst is not used, it needs to react at high temperature and the reaction time is longer, so there are not many applications in the domestic market.

The powder treated with this kind of surface treatment agent is characterized by outstanding hydrophobicity, resistance to skin sweat and secretion of grease, long retention time on the skin, and good dispersion in oily media with extremely low polarity. The disadvantage is that there may be residual active groups, and hydrogen may be released under alkaline conditions, so it is not suitable for some products.

The powder treated with this kind of surface treatment agent, because the surface treatment agent tends to be more tightly combined with the powder, generally shows a light, thin and even skin, with a unique smooth skin feel.

Lotion products
The pre-prepared emulsion products are more convenient and environmentally friendly to use. And can be modulated into various types according to needs, providing more choices.

Dimethiconol
Hydroxy silicone oil is used as a surface treatment agent, and its Si-OH bond can directly chemically react with the -OH bond on the surface of the powder, and the bond is relatively strong.

Fluorine-containing silicone oil
Because of its unique structure, fluorine-containing silicone oil has the characteristics of high temperature resistance, strong stability, and abrasion resistance, which makes it deeply loved by researchers. The powder treated with it often shows good solvent resistance and abrasion resistance. It is used in cosmetics, so that the makeup can be maintained for a long time, and it is not easy to spend.