... -95% Size:5 micron Application: paint,caoting,rubber,plastics Active Heavy Calcium Carbonate for paintCaCO3 powder ... Electric cable, Tire, Belt, Hose, Sponge, Rubber paste, Rubber glue.3.PAINTTo add the Heavy Calcium Carbonate when ... It does not only makes the paper more white, but also makes it change from acidic ... the school, it is contained to Powder of white line on the ground, Chalk, Colors, Crayon, ...