The 3M™ Wetordry™ Abrasive Sheet, 213Q, is an aluminum oxide, closed coat abrasive bonded with a waterproof resin. Ideal for wet sanding, fine featheredging or the final sanding step before priming, this product provides a great finish and a consistent scratch pattern. It can be used in wet sanding applications, or for scuffing the blend area prior to painting. The 3M™ Wetordry™ Abrasive Sheets offer a flexible backing with consistent scratch pattern, making this a great wet sanding product.