BaSO4, also call barium sulphate: have the stablity and high hiding power. Keep the color and oily of the pigment. BaSO4: the barium sulphate. Usage: Mainly used in paint, ink, pigment, rubber, battery charge, plastic and copper printing industries and so on. TypeIndexHB-1HB-2HB-3HB-4P10E10ADensity 4.25-4.354.25-4.354.25-4.354.35-4.454.35-4.454.35-4.45DV 50 µm9-112.5-3.51.8-2.51.3-1.50.8-1.00.8-1 ...