... calcium carbonate used in paint 1.classfication:carbonate 2.used in plastic, paint, rubber, paper , PVC heavy calcium carbonate used in paintwe have super ... 90 or over. The high whitenes of calcium carbonate can be used in some special purposes, such as tooth ... used as an extender in paints, in particular matte emulsion paint or a filler in plastics, a mixeture in plastic, paint, paper, rubber, glass ...