... other rubber products. Filling a large number of Calcium Carbonate in the rubber or synthetic rubber, can ... natural rubber or synthetic rubber, reduce costs. Our Calcium Carbonate make the rubber easier for mixing, decompose, processing, ... , high bending strength, strong tear-resistant. Specification Calcium Carbonate For Rubber ItemsWhiteWaterOil AbsorptionCaO3Fe2O3Acid-insoluble1250 mesh≥96≤0.3 ...