Steady Growth Expected for Global Kaolin Mining Market
The global kaolin mining market is expected to reach 34.5 Mt in volume by 2020.
The global kaolin mining market is expected to reach 34.5 Mt in volume by 2020, growing at a compound annual growth rate (CAGR) of almost 4%, according to a recent market study from Technavio. As of 2015, the paper segment had the majority share of the global kaolin mining market. The paper industry is the largest end-user of kaolin, which is widely used as a filler to replace fiber and in the coating of paper. Kaolin helps in improving paper printability and appearance such as gloss, brightness, smoothness, and opacity, as well as in reducing the cost of the paper. The quality of paper is affected by the characteristics of kaolin such as rheology, purity, and particle geometry of the processed mineral. Titanium oxide and iron oxide minerals are the most prominent impurities found in kaolin clay, which hamper paper’s brightness.
By volume, the global kaolin mining market for ceramics was 8.4 Mt in 2015 and is expected to reach 10.74 Mt by 2020. Kaolin is extensively used in the production of porcelain, whitewares, and refractories. Its white burning property and high fusion temperature make it suitable for these applications. Kaolin can be used alone in the refractories manufacturing process. However, for the manufacture of whitewares, it is mixed with silica, feldspar, and ball clay to obtain specific properties for forming and firing wares (e.g., plasticity, vitrification, and shrinkage).
Kaolin is used in paint and coatings for industries such as architectural, automotive, industrial, and inks. In architectural paints and coatings, it helps in keeping the cost low because kaolin costs less than titanium oxide. In addition, it provides increased tint strength, opacity, sheen control, improved pigment suspension, stain and scrub resistance, and improved holdout. For automotive primers, kaolin provides tank stability, corrosion resistance, edge film build, film smoothness, and uniformity.
“For industrial applications, kaolin is used as a pigment for equipment, machinery, metal furniture, and wood and composite board finishing,” said Chandrakumar Badala Jaganathan, lead analyst. “It offers rheology control, strike-through resistance, low abrasion, color pigment extension, and fast dry times. It also improves and maintains ink performance.”
For more information, visit www.technavio.com.