Some inherent physical and chemical properties of ultrafine talc powder, the application of ultrafine talc powder in different coatings and the characteristics given to the coating film are explained. Through the reasonable combination of ultrafine talc powder and other fillers, the selection of raw materials and the use of a certain process flow, different coating varieties with specific coating film properties and good cost performance were prepared.

With the advent of some synthetic resins, the gloss, fullness, adhesion and durability of their coatings have greatly improved. In addition to pigments that provide hiding power, paints such as talcum powder and heavy calcium are also used in the paint. These extender pigments can not only eliminate the excessive gloss of the coating film, but also reduce the cost, improve the fillability of the coating film and other physical and mechanical properties.

There are not many reports about the application of talc in different coatings. Starting from some physical and chemical properties of talc, the application of ultrafine talc in different coatings is described for reference.

The application of talc, the application of ultra-fine talc in solvent-based wood coatings. The ultra-fine talc in solvent-based wood coatings is mainly used in PU transparent primer and PU solid color topcoat.

The application of talc in industrial coatings, talc is widely used in industrial coatings, mainly used to reduce costs and improve the filling performance of primers. Experiments have found that talc has special effects in certain occasions, especially on some difficult-to-attach substrates, such as polished aluminum, stainless steel and other smooth, difficult-to-attach surfaces, which can improve the adhesion and solvent resistance of coatings.

The application of talc in water-based coatings. Ultra-fine talc is used in water-based latex coatings. It can give paints good brushability, leveling, and gloss retention. The resulting coatings have good impact resistance and flexibility. At the same time, it can effectively improve the corrosion resistance and dryness of the coating. The following uses white matte exterior wall paint as an example.

The application of talc in silicone high-temperature resistant coatings, because the talc powder in a sheet structure can increase the flexural rigidity of high-temperature resistant coatings at high temperatures, thereby improving the adhesion of high-temperature resistant coatings at high temperatures; on the other hand, talc The powder and the functional group of the silicone resin will chemically react under high temperature conditions to form a silicon-oxygen bond with a certain adhesion and protection.

The application of talc, the application of ultra-fine talc in solvent-based wood coatings. The ultra-fine talc is mainly used in solvent-based wood coatings. PU coatings can continue to bear a certain heat load under high temperature conditions. Matching thermal expansion coefficient, thus maintaining the structural stability of the coating.

As a physical pigment with certain functions, talc is cheap and rich in sources. It is widely used in many coating varieties, but we must be familiar with the various physical and chemical properties of talc.