Heavy duty and stiff Z – Cloth Zirconia Alumina Abrasive Sand Paper Blue Hard Back – Roll 250mm x 25m Long Product Benefits: Aggressive and high grinding performance through novel mixture of zirconia alumina grain Highly tear-resistant and waterproof Polyester backing with low elongation provides high belt stability Applications: Rough grinding and deburring of workpieces made of steel, stainless, non-ferrous metals and cast iron Flat grinding of steel and stainless steel coils and sheets on stationary belt and wide belt grinding machines Centreless grinding of tubes, rollers and bars on stationary belt grinding machines Calibrating of wood based panels