Alpha PVA VP dry polishing disc is a versatile high-speed polishing system used to polish stone, ceramic, wood, glass, and metal including stainless steel for a semi-mirror finish. Fast working and long lasting, the Alpha PVA VP polishing disc is easy to use and works well on most common high-speed angle grinders, sanders and polishers. In addition, it works great for paint, rust and coating removal, as the material will not clog.