1. In coatings, talc powder is used as a filler, which can act as a skeleton, reduce manufacturing costs, and improve the film hardness of coatings. It is divided into transparent type and covering type ultra-fine talc powder. Transparent ultrafine talc powder is mainly used in oil-based coatings. Covering talc is primarily used in water-based coatings. 2. Talc is mainly used as papermaking filler, coating and resin control and deinking agent in the papermaking industry. As a papermaking filler, talc is mainly used in newsprint, copperplate, offset printing paper, writing paper, etc. Talc can make paper strong and white, increase opacity and brightness, and enhance the ability to absorb ink. Talc has strong adhesion to pigments, allowing color prints to achieve good color effects. 3. When used in rubber, it can increase the volume of the rubber, improve the processability of the rubber, play a semi-strengthening or strengthening role, and can adjust the hardness of the rubber. 4. I...