In the paint, the needle like wollastonite is used as a filling agent or emulsion, which can obtain high-quality, bright colored paint, and has good uniform coating and anti-aging properties. The expansion coefficient of wollastonite is small, and the proper collocation in the coating will overcome the shortcomings of the skin peeling off. The powder has high fineness, large surface area and good chemical stability of wollastonite, which can enhance durability and absorption of the product. Adhesion and corrosion resistance.