This series Calcined Kaolin is specially engineered for butyl rubber and outside wall coating industry. It is with high whitenes

Typical Phyisical Properties 

Item	DG50	DG50A*
(%)≥ Whiteness	90	90
(-2μm %)≥ Granularity	55±2	55±2
(%)≤ Screen residue, 325 mesh	0.05	0.05
(%)≤ Moisture	0.5	0.5
(g/100g) Oil absorbency	40±5	35±5
PH	6.0~8.0	6.0~8.0
(g/cm3) Density	2.7	2.7

*      

*     With surface treatment

(%)Chemical Components Ratio  

SiO2	Al2O3	Fe2O3	TiO2	CaO	Na2O	K2O	MgO
52±2	45±2	≤0.5	≤0.8	≤0.5	≤0.2	≤0.1	≤0.2

DG50 Series Calcined kaolin