Our 3M Performance Sandpaper is a premium abrasive sheet that is built specifically for hand sanding on jobs such as shaping auto body filler or putty. These one-third (9” x 3”) sandpaper sheets feature fast-cutting, long-lasting aluminum oxide/ceramic blend abrasive on durable paper backing that attaches easily to sanding blocks. This sandpaper is ideal for use with the 3M Body Repair System.3M Trizact Performance Sandpaper combines a fast cut and extremely consistent, refined finish for your auto body projects. It features our Trizact structured abrasive – its microscopic three-dimensional mineral structures resemble pyramids. This patterned, precise surface on a lightweight foam removes very fine sand scratches and leaves metal and painted metal surfaces ready for polishing.