3M Blue Sandpaper 31570-6, 3 2/3 in X 9 in, 40 G, 6 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. 7100281867 - 00638060852958
