Kaolin is used in the ceramic industry due to its high fusion point and greater resistance to heat
Kaolin has a wide range of applications in the ceramic industry and is commonly used in white tableware, tiles, sanitary ware, insulators and refractories. Kaolin imparts rheological properties, stronger finished product and smooth surface finish; alongside improved optical properties for white ware.
Kaolin is becoming more prevalent in porcelain insulation due to its high dielectric strength. Kaolin is used in refractories due to its extremely high fusion point, low water content and high green strength. Ceramics produced with kaolin have a wide variety of uses – primarily as a metal substitute. Ceramics are becoming more prevalent in aerospace due to their refractory strength. Ceramic knives stay sharper longer and have better durability than metal.
Toyota has created an all ceramic car engine capable of running at much higher heats. Recently there have also been advances in bio-ceramics that may lead to new and better teeth and bone replacements.
Ceramic applications depend on the properties of kaolin like particle size distribution, chemical composition, strength and casting properties. The plastic properties of kaolin are particularly important in porcelain formulations. Kaolin is a major component in most ceramic bodies. It is used in the production of table ware, sanitary ware, electrical porcelain, insulators, wall tiles and floor tiles.
In white ware, EICL Kaolin aids accurate control of molding properties, adds dry and fired whiteness and smoothness
Vitrofine – is a fine calcined product for the partial replacement of Zirconium silicate in ceramics application