Made from fast cutting premium abrasive grain, our drywall sandpaper is designed for sanding and preparing joint compounds, spackling and for scuffing painted surfaces before repainting. Use 80 100 grit for removal of thick layers of joint compounds and spackling. For use on drywall, plaster, varnish, fiberglass, paint and metal. Sharp, fast-cutting silicon carbide grain produces a smoother finish on drywall. Pre-cut and notched to fit the most popular drywall sanding tools. Resin coating locks the grain to the paper while resisting heat and humidity. Series Name: Precut Drywall Sandpaper. Type: Sheet. Length (Inches): 11.25. Width (Inches): 4.25. Attachment Method: Clamp. Durability: Commercial. Mineral: Silicon carbide. Package Quantity: 10. Sanding Grade: Medium. Sanding Grit: 80. CA Residents: Prop 65 Warning(s): Yes. UNSPSC: 23131500.