B301 lithopone: white pigment, zinc sulfide content of 28%. Hiding stronger than zinc oxide, titanium dioxide worse than that, good heat resistance.
        Main use: paint, paints, inks, plastics, rubber, paper, enamel and so on.
B302 lithopone: white pigment, zinc sulfide content of 28%, after surface treatment better than the B301 dispersion.
        Main use: paint, paints, inks, plastics, rubber, paper, etc.
B311 lithopone: white pigment, zinc sulfide content of 30%. Stronger than the B301 hiding and achromatic, with better dispersion.
        Main use: paint, paints, inks, plastics, rubber, paper, enamel and so on.
Technical Specifications: (Standard: GB/T1707-1995)