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Coatings industry
The use of nano calcium carbonate in the coatings industry is a major trend in recent years, applicable to both water-based and oil-based coatings. It results in coatings with advantages such as fineness, uniformity, fast drying, and good optical properties. Compared with commonly used lithopone, it has stronger adsorption and surface chemical properties. Therefore, the surface tension of nano calcium carbonate coatings is lower than that of lithopone coatings, while its highly dispersed nature makes its hiding power stronger than lithopone coatings. Coatings using nano calcium carbonate as a filler have reduced internal cohesion in the liquid, resulting in a smooth surface coating with good texture. Targeting the characteristics of fillers and aggregates in coatings, the specialized spindle-shaped nano calcium carbonate, compared with commonly used lithopone and titanium dioxide, has extremely fine particles, is completely wetted by water, is easy to grind and disperse, and has extremely strong adsorption. Its hiding power is stronger than lithopone, and the surface coating is smooth, with vibrant colors and good texture. It can largely replace the expensive titanium dioxide, while reducing the amount of base binder, significantly lowering costs and achieving remarkable economic benefits. Nano calcium carbonate has been successfully used by many coating manufacturers to develop advanced nano coatings, improving product technology content.
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