Calcium carbonate (CACO3) is a chemical compound commonly derived from rocks and minerals (most notably limestone) through mining or quarrying. Used mainly for construction and industrial purposes, calcium carbonate acts as an effective filler and coating pigment. Its versatile uses include offsetting the acid properties of soil and water, purifying sulfur emissions from power stations, and is a popular filler in plastics.
Here are a few examples of the common applications of CACO3:
Commonly used as binding material in masonry works due to its adhesive property with bricks and stones, CACO3 allows mortars to set quickly with high compression strength.
CACO3 filler masterbatches drastically reduce plastic production costs in addition to improving the physical and chemical properties of finished plastic products (e.g. exceptional softness and whiteness).
Widely used as an extender in paints, CACO3 lowers costs by maximising the efficiency of colour pigments, reducing the amount needed to achieve the desired colour by filling up the paint volume.
Used in the production of acid-free paper, fine ground calcium carbonate (GCC) produces increased brightness and gloss in the paper while reducing production cost and carbon footprint.
SKIM COAT (Wall Putty)
CACO3 gives wall putty a smooth and strong finish due to its even dispersion and highly liquid texture.
CACO3 is used in PVC hoses to improve the surface finish, tensile strength and elongation capability.
INNER RUBBER TUBE
INNER RUBBER TUBE
In the production of inner rubber tubes, CACO3 provides excellent tear resistance and improves resistance against flex tears with its enhanced dispersion and reinforcing properties.
Used in the production of detergent powder, CACO3 has a high water absorption capacity which makes the powder free-flowing and fluffier.
ANIMAL FEED AND NUTRITIONAL SUPPLEMENTATION
A common and economical calcium source for animals, pure calcium carbonate powder contains one of the highest levels of elemental calcium. It is an ideal nutritional supplement for animals.
Used to neutralise acids in the soil and create optimum soil conditions for crop growth, CACO3 improves soil structure for improved drainage. It also provides an important source of calcium ions for plant nutrition.
The addition of limestone as a filler in cement has multiple benefits, mainly reducing the setting time and porosity, as well as improving the hydration rate and strengthening cement compounds.
A popular filler in plastics, CACO3 produces a glossier surface finish and increases rigidity and impact strength.