... as the raw materials or fillers in oil paint,ink,plastic,rubber and battery ,the Surface smear medicament ... protective wall materials. In addition,it’s widely used in pottery , enamel, spices and paints, etc. What’s more ... they are widely used in the areas of paints, printing ink, master batch, plastic material, rubber and papermaking, etc ... time. Ultra fine barium sulfate for paint, ink, plastic,coating