1.White corundum FEPA P grit 2. for making sanding cloth, sanding paper, abrasive ... of high pure white fused aluminium oxide grain for coated abrasives,Its high friable, well self-sharpening ... working pieces.Applications:WAP can be well used for many kinds of coated abrasives like sanding paper, ... 95Hardness 2150 Knoop scaleMagnetic Material 0.0025%Macrogrit Sizes Available (P):12, 16, 20, 24, 30, 36, 40, ...