3M Blue Sandpaper 31581-8, 3 2/3 in X 9 in, 800 G, 8 Sheet/Pack, 20 Pack/Case 3M has innovated auto body sanding yet again with 3M Blue Sandpaper. This ceramic mineral blend provides best-in-class performance. The result – reduced prep time. Blue cuts 50% faster than conventional abrasives due to microreplicated grains which wear evenly and allow you to get more work done with less sheets. 7100282775 - 00638060853009
