Open mesh sand screen cloth. Aluminum oxide grain resin bonded to synthetic nylon cloth. 100% waterproof, but can also be used dry for sanding by hand or with portable tools. Most effective where clogging is a problem, such as soft materials. 180 grit.
DiversiTech Grip-Cut™ Abrasive Cloth, 1-1/2 in Width, 5 yd Length, 180 Grit, Aluminum Oxide Abrasive, Nylon Backing, Gray