... residue on 325 mesh sieve,little abrasion,super whiteness and good light dispersion.high viscidity Characteristics,It is fine particle,little residue ... on 325 mesh sieve,little abrasion,super whiteness and good light dispersion.high viscidity and better fluidity.the crystal is ... .5≤0.80.50.30.10.2 TY-90-01 Ultra fine and super white calcined kaolin