calcined kaolin

CALCINED KAOLIN FOR COATING(GB-CK95/96)1. Benefits and Application The GB-CK series of Kaolin based pigments are produced through delamination, calcination and classification. The well-controlled process ensure the GB series has no particles and maintains an absolute minimum of 325 mesh residue, so the end user can achieve a high Hegman grind. The GB series pigments also have high brightness, strong hiding powder and superior dispersibility, and it is widely applied in latex paint, powder coating and electrophoresis coating. Its main benefits: 1) It is best extender of titanium dioxide with excellent opacity that can improve efficiency and cut costs by partly replacing titanium dioxide. 2) It can easily disperse in water based systems. 3) It offers superfine particle and with excellent anti-setting property. It is inert to most acids and alkaline at ambient temperature and offers good anticorrosive capabilities 2. Typical Physical Properties Item GB-CK95 GB-CK96 Brightness ( T457 ) 93.5% min 90% min Particle Size 0 2 micron% 80±2 80±2 Particle Size 0 10 micron% 100% 100% Refractivity 1.62 1.62 Screen Residue (325 mesh %) 0.002max 0.002max Oil Absorbency(g/100g) 60±5 70±5 Dispersion (micron) 50max 50max PH 5.5 7.0 5.5 7.0 Bulk Density (kg/m³) 330 330 Specific Gravity(kg/m³) 2600 2600 Moisture (%) 0.8max 0.8max 3. Typical chemical Properties SiO2 (%) Al2O3 (%) Fe2O3 (%) TiO2 (%) CaO (%) MgO (%) CuO (%) K2O (%) Na2O (%) MnO (%) 52±2 45±2 0.50 max 1.5 max 0.4 max 0.2 max 0.004 max 0.05 max 0.15 max 0.004 max