Savino Micron India P. Ltd Ahmedabad, Gujarat

Calcium carbonate makes up about 20 percent of the pigments used in the paint industry. Calcium carbonate is used to extend the resin or polymers because of its controlled color and low cost. Calcium carbonate also is used to control the sheen or gloss in flat paints.

The paper industry is a major consumer of mineral pigments. In paper coating applications, calcium carbonate, fine ground, is used to make a whiter, brighter sheet. In paper filling applications, calcium carbonate can improve the whiteness of the sheet and reduce costs by replacing expensive fiber and pigments. The chemical properties of calcium carbonate are used to produce non-acidic paper.

In ceramics/glazing applications, calcium carbonate is known as whiting, and is a common ingredient for many glazes in its white powdered form. When a glaze containing this material is fired in a kiln, the whiting acts as a flux material in the glaze. Ground calcium carbonate is an abrasive (both as scouring powder and as an ingredient of household scouring creams), in particular in its calcite form, which has the relatively low hardness level of 3 on the Mohs scale of mineral hardness, and will therefore not scratch glass and most other ceramics, enamel, bronze, iron, and steel, and have a moderate effect on softer metals like aluminium and copper. A paste made from calcium carbonate and deionized water can be used to clean tarnish on silver.

Calcium carbonate is used in the production of natural and synthetic rubbers. It maintains their flexibility and increase their resistance to torsion and traction thus improving their mechanic and electric characteristics. Calcium carbonates diminishes rubber aging, material fatigue, do not change their external aspect and do not induce heat and avoid ruptures

The plastics industry is the largest consumer of ground calcium carbonate. It is the major engineered filler used in plastics with more than 55 percent of the total mineral consumption. The majority of the calcium carbonate is consumed in polyvinyl chloride (PVC), thermoset polyesters and polyolefins. Calcium carbonate is widely used in the plastics industry for a variety of qualities: it has controlled whiteness, it improves impact strength, it aids in processing and acts as a heat sink in exothermic curing systems. It also reduces costs by replacing expensive plastic resins. Calcium carbonate-containing plastics are commonly found in shower stalls, commercial and residential floor tiles, bathroom sinks, pipe and conduits.