... Application: paint,caoting,rubber,plastics Active Heavy Calcium Carbonate for paintCaCO3 powder, Calcium Carbonatewhiteness: 93-97%purity: 92-98% ... filler.Rubber products which contains the Heavy Calcium Carbonate are as the following;Chemical shoes, Electric cable, Tire, Belt, ... Hose, Sponge, Rubber paste, Rubber glue.3.PAINTTo add the Heavy Calcium ...