China Clay Kaolin Clay is naturally occurring hydrated Aluminium Silicate. It mainly has oil absorbing properties, reduced shine and translucent properties. It also provides hiding effect and reduces the usage of TiO2 to a great extent. int Industry: China Clay forms the basic raw material as an extender for Water based decorative paints. Solvent based decorative paints. Protective and OEM coatings; domestic appliance finishes; electrophoresis coatings; coil coatings; traffic markings; printing inks.