... CaCO3 based CaCO3 filler master batch TMC transparent filling masterbatch in rubber and plastic 1, filler master batch manufacture2, 85% CaCo3 ... quality all the time,this filler masterbatch is widely used in plastic products for blown film,extrusion & injection molding,casting,filament ... /sheet;suggestion dosage ratio: 5-20% TMC transparent filling masterbatch in rubber and plastic