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 More Product Features HS Code: 25070010  Trademark: BRITEX  Model: GB-K90  Standard: GOLDEN BRIGHT  Productivity: 1000MT PER MONTH  Origin: CHINA  Packing: 25KG BAG  Min. Order: 26MT  Transportation: BY SEA