Material:A ---Aluminium, C ----Silicon Carbide Applications:Wood, Paint/Varnish Filler,Plastic Grains: coarse/medium/fine Description:The sanding ... after washing.It is used for special surfaces of metal,paint,wood,plastic by hand.It is high efficient for fine ... #, 180#, 220#, 240#, 320#Density: High/Medium/LowMaterials: Aluminum oxide/ Silicon carbideGrains: Coarse/Medium/Fine