GB-K90 kaolin is produced through water washing, grind, classification, press filtration and strong drying. The well controlled processes ensure the product have no coarse particles, so the end user can achieve a high Hegman grind. The product have high brightness, it is applied in paper-making and coating industry.
Typical Physical Properties: Brightness(T457): 87% min Viscosity (500mPa. S): 65 min Particle Size (0-2 micron): 82%min Particle Size (+45 micron): 0.02% max PH: 4 Oil absorbability (g/100g): 30-35 Refractive index: 1.6 Dispersion fallout (%): 0.05 max Density (g/cm3): 2.58 Bulk density (g/cm3): 0.7 Moisure (%): 2% max Shaper: Powdery Packing: Plastic bag / Paper packing Weight: 50(+/-1)kg / 25(+/-0.5)kg