Amazingly Versatile Uses of Calcium Carbonate

  • Saturday , Date 24/11/2018
  • Calcium Carbonate (CaCO3) is one of the most popular mineral fillers used in the plastics, paint and rubber industries and is used in various applications from tyres, wire cable, flexible PVC, pipes, flooring, coatings, adhesives etc.

    Different grades of Calcium Carbonates such as ground calcium carbonate, precipitated calcium carbonate are required to achieve desired results. The main advantages include a high surface gloss or opacity. Additionally, when the particle size is carefully controlled CaCO3 helps to increase both impact strength and flexural modulus (i.e. stiffness).

    Glass & Ceramics

    Calcium Carbonates is an essential calcium component in the manufacture of container and flat glass. High purity, consistent color and low levels of impurities are essential. It is a common ingredient in pottery glazes

    Paints & Surface Coatings

    Paint is a thin layer of film which acts to protect, colour or provide texture to objects. Fillers are used in paints to thicken the film, support its texture and to increase the volume of the paint. Our calcium carbonate products will ensure consistent high degree of whiteness that could improve the quality of the paint.


    Fine grades of calcium carbonate are used extensively in paper manufacturing. Consistent particle sizing and color are essential. As an alkali material it reduces acidity of paper, improving the durability of printed material.


    Calcium carbonate forms a kind of skeleton structure inside plastic products, and greatly improves the size stability of plastic products. It can improve product hardness, electrical performance, flame retardant performance, heat resistance, and processing performance. It can also improve products' luster and surface regularity. Adding calcium carbonate can increase the heat resistance of ordinary plastic products. And since it has a whiteness in excess of 90%, calcium carbonate can serve as a whitener in place of costly white pigments.

    Taking the manufacture of PVC products as an example, the rational use of heavy calcium carbonate can increase heat resistance, rigidity, size stability, and workability. In addition, the use of small quantities of light calcium carbonate can increase the tensile strength of PVC products. The addition of too great an amount of calcium carbonate to PVC products can hurt product quality, and the use of poor quality calcium carbonate can greatly reduce product quality. The addition of similar quantities of ordinary calcium carbonate, superior calcium carbonate, and inferior calcium carbonate will yield PVC products with completely different performance.


     Calcium carbonate already has a long history of use in plastic and rubber. Its use can cut costs, and it can improve the heat resistance, size stability, and hardness of the base material. Calcium carbonate is the filler first used by the rubber industry, and is still used in the greatest quantity. Adding large amounts of calcium carbonate to rubber can increase the product's volume, which conserves the use of expensive natural rubber and thereby cuts costs. The addition of calcium carbonate to rubber increases tensile strength, abrasion resistance, and tear resistance even more than does vulcanization. Calcium carbonate also has a significant reinforcing effect in both natural and synthetic rubber, and can improve consistency. Calcium carbonate is used in such small rubber products as oil seals and auto parts, and also in such large products as tires, tape, and rubber hoses. 



    There are other applications of calcium carbonate which include inks, coatings, adhesives, tiles, sealants and etc.

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