3M Trizact Performance Sandpaper combines a fast cut and extremely consistent, refined finish for your auto body projects. It features 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 Ideal abrasives for detailed finishing and polishing Trizact technology delivers fast, extremely consistent cut Very fine grade abrasive delivers refined finishes to auto clear coats Lightweight foam backing provides flexibility and attaches easily to sanding blocks Excellent for wet sanding to reduce dust and prolong sheet life Removes very small scratches to reduce or eliminate need for compounding and reduce polishing time Use during Stage 4 of our 3M Body Repair System