White pigment, zinc sulfate content is 28%. Hiding power is stronger than zinc oxide, lower than titanium dioxide, good heat endurance.
Voluntary standards: GB/T1707-1995                                             
Lithopone Standard-----------------------------28%-30%
Total of Zinc and BaSO4-------------- 99%Min
Total Zinc(as Zns)------------------------ 28%-30%Min
Volatile matters at 105 -----------------0.3%Max
Zinc oxide -----------------------------------0.6%Max
Soluble matters in water ----------------0.4%Max
Screen residues(63um mesh) --------0.1%Max
Oil absorption ------------------------------14%Max
Color killing ----------------------------------105%Min