Calcined Kaolin By Beihai Golden Rock Mining Co., Ltd.

Calcined kaolin made by coal gangue and aluminous rocks. After the calcined modified, they are high brightness and good chemical stability, can be widely used in paint and coating,paper making,rubber,plastic, cable,ceramics and other fields.

Typical Physical and Chemical Properties :
Calcined Kaolin Applied for high grade ceramic,water coating and oily paint,wire and cable,newsprint, take place aluminium in ceramic glaze.
GRCK-20 Applied for water coating, electric wire and cable.
GRCK-30 Applied for water coating and pharmaceutical industry
GRCK-40, GRCK-50 Applied for Copperplate paper and White version of paper, foam rubber painting,ink and cosmetics,partly takes place of the titanium dioxide
GRCK-60 Used in rubber and ink.

No. of Product GRCK-12
Particle Size (mesh) : 1250
Percentage of -2Aum : 40%-45%
Screen residue (325 mesh) : 0.05 %
Brightness(ISO) : 92
Oil Absorbency (g/100g) : 40
PH : 6.5-7.5
Moisture : 0.6% max
SiO2 : 52%-54%
Al2O3 : 44%-46%
Fe2O3 : 0.33% max
TiO2 : 0.28% max
Na2O : 0.16%
CaO : 0.27%

Features: Pure and high brightness,fine grain and low screen residue,decentralized and well covering performance and floating,not easy to precipitate.They can replace lithphone and partly of titanium dioxide to lower the product cost.