... content is 28%. Hiding power is stronger than zinc oxide,lower than titanium dioxide,good heat endurance.Coating, paint producing, ... or paper bag,50kg or 25kg per bag.B302lithoponeWhite pigment, zinc sulfate content is 28%. Dispersancy is better than B301 after ... paper bag,50kg or 25kg per bag.B311lithopone White pigment,zinc sulfate content is 30%. Stronger hiding power and reducing power ...