These Gator sheets are best for sanding automotive paints, urethane, lacquer, varnish, porcelain, acrylic enamel, metal primer, or clear coats.Features Use for hand or machine sanding Cut to fit 1/2 sheet, 1/3 sheet, or 1/4 sheet orbital sander Use in between coats to smooth surface Use to remove rust stains from porcelain sinks and tubs—remove scratches and stains from Corian® Sand with water to resist clogging for improved finish Resin-bonded to resist heat and humidity for longer lifeSpecifications Silicon Carbide Grain 600 Grit 25 PackApplication: Sanding Quantity: 25 Pack