The following is a detailed description of its advantages:

Stable chemical properties

Composition and structure: Silica is a general term for white powdered X-ray amorphous silica and silicate products. It is a porous substance that is soluble in caustic alkali and hydrofluoric acid, but insoluble in water, solvents and general acids (except hydrofluoric acid). Its chemical composition can be expressed as SiO2·nH2O, where nH2O exists in the form of surface hydroxyl groups.

High temperature resistance and non-flammability: Silica is high temperature resistant, non-flammable, tasteless, odorless, and has good electrical insulation.

Excellent optical properties

Refractive index matching: The refractive index of amorphous Silica is 1.4571.46, which is similar to the refractive index of resins commonly used in the coating industry (1.41.5). This refractive index matching allows Silica to maintain good transparency in coatings while achieving a matting effect.

Significant matting effect: Adding Silica matting agent to the paint can be evenly distributed in the coating to form a slightly rough surface, diffusely reflect the incident light, and significantly reduce the gloss of the coating surface. This matting effect not only improves the decorativeness of the coating, but also gives the coating a soft gloss and rich feel.

Superior physical properties

Good particle size distribution: Silica has a suitable particle size distribution, which allows it to be evenly dispersed in the coating and is not prone to agglomeration and precipitation.

High porosity: The porous structure of Silica gives it a high porosity, which helps to enhance the matting effect and hiding power of the coating.

Widely used and environmentally friendly

Diverse application fields: Silica can not only be used as a matting agent for coatings, but also widely used in rubber, plastics, inks, papermaking, pesticides, food additives and other fields.

Environmental protection: As an inorganic compound, Silica is environmentally friendly and does not release harmful substances.

In summary, Silica as a coating matting agent has multiple advantages such as stable chemical properties, excellent optical properties, superior physical properties, and wide application and environmental protection. These advantages make silica have broad application prospects and market demand in the coatings industry.