In the application of friction material, Wollastonite can improve the stability of friction materials and decrease or even solve the cracking problem, which significantly strengthens the friction resistance, heat resistance and other physical and mechanical properties of the finished products. Wollastonite can also partly or even totally replace other fiber raw materials in friction materials to descend the costs and enhance the added-value of products. In the production of ceramic bonded abrasives and grinding wheels, Wollastonite can greatly improve the melting speed and high temperature shock resistance. Wollastonite is widely applied to brake lining, lining, clutch, valve plug and pulley, etc.
