... vinyl ester resin, ABS resin, polystyrene, polycarbonate, nylon and polyformaldehyde, as well as plastics, paint and printing ink. And it is also ... used to color rubber articles, varnished cambric, leather, paper and enamel, etc. 2, Processing Method: Barite Calcination Method3 ... B301excellentThe 1StqualifiedSum of total zinc calculated in zinc sulfide and barium sulphate %(m/m)≥ 99Total zinc content ( ...