Calcined Kaolin - Ultra-fine Thermally Structured Aluminum Silicate, Low Surface Hydroxyl Content For Moisture Sensitive Applications

We offer Calcined kaolin which is a hydrous, thermally structured aluminum silicate, produced by heating ultra-fine natural kaolin at a very high temperature. The calcination process changes the shape of kaolin particle and increases its hardness. During the calcination process of kaolin, dehydroxylation takes place and leads to the formation of METAKAOLIN, which is a highly reactive substance.

When kaolin is completely calcined, it leads to the formation of an amorphous defect spinal structure, which helps to contribute opacity to end product application. It can also be used to replace and substitute TiO2 from 15 to 25%, in a number of applications.

Calcined kaolin has a low surface hydroxyl content which leads to low moisture pick up. Therefore, it performs excellently in moisture sensitive applications.