... used in abrasive, refractory and ceramic industry.CF-16 is a black, friable, medium bulk density ... a complete range of grit sizes.Applications:CF-16 is used in making vitrified bonded grinding wheels ... Chemical Analysis:SiC 98.60%Free Carbon 0.16%Fe2O3 0..33%Physical Properties:Color BlackShape AngularCrystal ... Material 0.0065%Macrogrit Grain Sizes Available (F):12, 14, 16, 20, 22, 24, 30, 36, 40, 46, 54, ...