Metal Grinding Zirconia Sanding Belts，Extra Long Life Sanding Belt --Closed coat, Waterproof cloth backing. --Unique ability to surface and grind quickly, aggressively and powerfully on such materials. --Wet or dry applications，deburring, shaping, weld removal, dimensioning, finishing and tool and blade sharpening. --Ultra strong and precision built bi-directional tape joint allows belt to run in either direction. --Use with ferrous metal (steel, cast iron, carbides, nickel alloy, tool and stainless steel, etc.), nonferrous metal (aluminum, titanium, brass, copper, etc.) and the hardest of wood stock. --Resin over resin bonding. Anti-clogging stearate.