3M sandpaper sheet 734 320 Wetordry highly abrasive grain and water resistant for use on paint, patching products, gel coats and lacquers. Built from a silicon carbide mineral with an advanced bonding system and a more flexible support. Its characteristics give it a faster cutting capacity, longer life and a more uniform finish, resulting in a reduction of time sanding and polishing. Features: Sheet 3M 734 Wetordry grain size 320, very fine grain, use: thrust finish Dimensions: 230 x 280 mm In coated abrasives Designed for all sanding applications, cleaning or manual finishing Tips: Before sanding, grab a mask, gloves and goggles using a ruler, cut pieces of abrasive suitable for your sanding block, you waste less paper. Soak the paper to soften the coating before sanding it avoids it breaks. The sandpaper must remain moist during operations if it hangs on the support, then you lose the effectiveness of the technique. Smooth the carrier with a damp sponge as and as you sand.