Drywall sanding screen is made to fit most drywall sanding tools. Made with a sharp synthetic mineral for long-lasting performance. Waterproof and can be rinsed for reuse. Features an open mesh cloth backing which reduces loading. 3M™ drywall sanding screens are designed for sanding drywall joints, patching compounds and plaster. The abrasive is waterproof with a sharp synthetic material that cuts fast. This versatile product can also be used on wood, metal, plastic and painted surfaces, either wet or dry. Pro-Pak™ 7010290416, 180 Grit, Very Fine Grade, Silicon Carbide Abrasive, Open Mesh Cloth Backing, J Backing Weight