Ultrafine Calcium Carbonate Powder

Our Ultrafine calcium carbonate powder is produced from high-quality calcite or high-purity limestone as raw materials, processed through ultra-fine grinding and precision classification. It is a high-fineness functional inorganic filler. Our Ultrafine calcium carbonate powder features narrow particle size distribution, fine and uniform particles, and excellent dispersibility. It can significantly improve the compactness, surface smoothness and mechanical properties of composite materials, and is a core filler raw material for high-end coatings, plastics, inks, papermaking and other industries.

Different from calcium carbonate products with ordinary fineness, our Ultrafine calcium carbonate powder has larger specific surface area and moderate oil absorption value, disperses uniformly in organic systems without agglomeration, and can effectively improve the processing fluidity and final appearance of products. We are equipped with advanced ultra-fine grinding and classification equipment, which can stably supply products with 800 mesh to 1250 mesh or even finer. Meanwhile, we strictly control large particle sieve residue to avoid affecting product surface effect, meeting the fine requirements of high-end manufacturing.

● High-grade coatings and paints: Added to latex paints and powder coatings to improve hiding power, scrub resistance and surface fineness of paint films, and improve coating suspension.

● Plastic and rubber products: Used in PVC pipes, cable materials and plastic masterbatches to enhance product rigidity, improve surface gloss and dimensional stability.

● Printing inks: Adjust ink fluidity and printability, reduce costs, and improve print clarity and color saturation.

● High-grade papermaking: Used for paper coating to improve paper smoothness and printability, and improve opacity and whiteness.

We have advanced ultra-fine grinding production lines and precision classification equipment, with sufficient annual production capacity to stably supply Ultrafine calcium carbonate powder in bulk. The factory is equipped with professional testing equipment such as laser particle size analyzers and whiteness meters to monitor key indicators such as particle size distribution, sieve residue and whiteness throughout the process, ensuring stable fineness and uniform particles of each batch of products to meet the performance requirements of high-end fillers.

We have established strict quality standards for ultra-fine products, focusing on particle size distribution, large particle sieve residue and whiteness indicators. Each batch of products undergoes laser particle size testing before leaving the factory to ensure that D50 and sieve residue meet the standards; meanwhile, impurity content is strictly controlled to avoid affecting the color and performance of downstream products. Complete inspection reports can be provided with the goods to support customers' incoming inspection.

Packaged in 25kg film-coated woven bags or paper-plastic composite bags, and 500-1000kg ton bags are also available, ensuring products are not affected by moisture or mixed with impurities during transportation. Products are stored in a cool and dry warehouse, with stacking height complying with specifications to avoid particle extrusion and agglomeration. The shelf life is 12 months under proper storage conditions, and product fineness and dispersion performance can be maintained stably.

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