... fillers PVC profiled, tube and calcium plastic materials. This product is a fine natural calcium carbonate powder. Concentrated particle size distribution, high ... pigment used in paper making, plastic and paint industries.The calcium carbonate ML-1003, whiteness:95%,sedimention:20%,PH:8-9 ... ,325mesh 0.1% residue, DOP:38%,oil absorption:23%,moisture:0.25%,density:1.15%,DV50:10%,specific area:10000 ...