3M Wetordry 99419NA Sandpaper, 11 in L, 9 in W, Super Fine, 600 Grit, Silicon Carbide Abrasive, Paper Backing

The 3M™ Wetordry™ Tri-M-ite™ sheet, 413Q, is a silicon carbide, closed coat product bonded with a waterproof resin. It can be used wet or dry for sanding old finishes, fine featheredging, surface work or last final sanding step before priming.