... Barium Sulfate, can use as rubber reinforcing filler, and used in paints, ceramics, batteries, enamel, paint, coatings(Product Name) Barium Sulfate( ... relative density is 4.0-4.6, do not dissolve in water, acid ,alkali and other solvents, resist heat, ... surface coating agents, sizing agents, increasing agent, usually be used in paints, ceramics, batteries, enamel, paint, coatings, and so on. BaSO498 ...