3M 9085 Sandpaper, 11 in L, 9 in W, 400 Grit, Super Fine, Silicone Carbide Abrasive

Sharp, synthetic, silicon carbide cuts fast to dry or wet sand between coats of varnish, paint and other finishes or to sand metal for repainting or prior primer coat. Use with water to reduce clogging and extend abrasive life.