Kaolin
Kaolin is a non-metallic mineral primarily composed of the clay mineral kaolinite. It is typically white or off-white in color and is known for its fine particle size, high purity, chemical inertness, excellent insulation properties, and high refractoriness. Due to these characteristics, kaolin is widely used in ceramics, refractories, paper, rubber, coatings, plastics, and cosmetics industries.
Depending on the processing method, kaolin can be categorized into raw (natural) kaolin and calcined kaolin. Calcined kaolin undergoes high-temperature treatment, which significantly enhances its whiteness, hardness, and thermal stability—making it ideal for high-performance ceramics, refractory products, premium coatings, and as a filler in cables and polymers.