B301--white pigment, zinc sulfate content is 28%. Strong hiding power and good heat endurance.
B311--white pigment, zinc sulfate content is 30%. Stronger hiding power and reducing power than b301. Better dispersancy.
Range of application: Coating, paint producing, printing ink, plastic, rubber, paper making, enamel etc.
Packing: In 25 kg net plastic weaving bag with polyethylene liner