Gator Grit 25 Count 4-1/4" x 11-1/4" 80 Grit Coarse Drywall Sandpaper. The drywall sandpaper is ideal for removal of thick layers of drywall joint compounds or to flatten uneven walls. Can also be used for scuff sanding of painted interior walls for repainting. Sandpaper is made of silicon carbide grain that produces a smoother finish on drywall. Sheets are precut and notched to fit most drywall sanding tools.