The 3M 3/4" x 20-1/2" 80 Grit Ceramic Aluminum Oxide Medium Abrasive Belt features a ceramic aluminum oxide grain blend that delivers cut-rate performance compared to standard aluminum oxide abrasives. Its heavyweight polyester backing is engineered to withstand high-pressure and rigorous applications and is suitable for both wet and dry use. Additionally, the belt incorporates a grinding aid, which effectively minimizes heat generation, thereby optimizing performance when working with stainless steel and other exotic metals. The belt's resin bond construction is designed to resist heat-induced deterioration.