With the Norton T489 waterproof sandpaper sheet, you achieve a smooth and even surface finish on your workpiece. Thanks to its waterproof paper backing, you can sand both wet and dry without the sheet clogging quickly or tearing. The sharp silicon carbide abrasive with P320 grit removes minor imperfections on paint, steel, metal, and plastic without leaving deep scratches. Measuring 230x280 mm, this versatile sheet easily adapts to flat surfaces as well as curved shapes and contours.