FEPA P grit,brown aluminum oxide grain for producing high quality ... paper, cloth, rolls, belts, etc. Typical Chemical Analysis:Al2O3 95.56%TiO2 2.25%SiO2 1.08%Fe2O3 0.08% Physical ... , 9.0 Mohs scaleMagnetic Material 0.0076% Macrogrit Sizes Available (P):12, 16, 20, 24, 30, 36, 40, 50, 60, ... 80, 100, 120, 150, 180, 220. Microgrit Sizes Available (P):240, 280, 320, 360, 400, 500, 600, 800, 1000, 1200 ...