... has an outstanding fire retardant, electric insulation, chemical inertness and middle surface area.PropertiesWith high main content, narrow size ... γ rays, as well as effectively improve the product surface gloss and surface hardness.Applicationspaints, printing inks, coatings, plastics, rubber, chips ... ,plate-out, abrasive, and so on. item Product standard Grade A Grade B BaS04%,≥ 98.0 97.0 PH Value 6. ...