CALCITE

Calcite is a fundamental industrial inorganic filler mineral with the chemical structure calcium carbonate (CaCO3), found in high purity and crystalline form in nature. It is widely used as a standard volume filler in the paint, plastics, rubber, and construction chemicals sectors to increase the volume of formulations, optimize production costs, and improve physical strength. Thanks to its high whiteness value, low abrasiveness profile, and excellent chemical stability, it ensures complete integration with the resin matrix in both water-based and solvent-based systems, elevating the opacity and mechanical stability of the final product.

Key Features and Advantages

• High Whiteness and Opacity: Thanks to its optical properties, it offers a significant cost advantage by reducing the usage rate of expensive pigments such as titanium dioxide (TiO2) in formulations.
• Excellent Dispersion: Thanks to its optimized particle size distribution (PSD) and low oil absorption, it disperses homogeneously in polymer and resin systems without agglomeration.
• Volume and Mechanical Stability: It increases the solid content of formulations, preventing shrinkage and micro-cracks during curing or drying.
• Low Abrasiveness: It minimizes wear in production lines, mixer, and extruder equipment, thereby reducing machine maintenance costs and extending equipment lifespan.

Technical Specifications

Application Areas

Calcite is the main volume filler in the construction chemicals industry for ceramic adhesives, joint fillers, cement-based plasters, and repair mortars. In the paint sector, it functions as a matting agent and opacity enhancer in interior and exterior emulsion paints, epoxy primers, and road marking paints. In the plastics and rubber industry, it is formulated as a critical reinforcing mineral in PVC pipe and profile production, and in polypropylene (PP) and polyethylene (PE) masterbatch compositions, to increase mechanical strength, delay combustion, and reduce polymer consumption.

Storage and Shelf Life

Calcite, being an inorganic and inert mineral, theoretically has an unlimited shelf life provided it is protected from moisture. The product should be stored on pallets, off the ground, in dry, cool, and enclosed warehouse environments. Due to its fine micronized structure, it can absorb ambient moisture and agglomerate, so the integrity of the original 25 kg polypropylene/kraft bags or industrial big-bag packaging must be maintained until the moment of use.