Wet mica powder physical and chemical indicators:

Size	Screen margin (%)	Sand Content (%)	Bulk density (g/cm3)	Water content (%)	Loss on Ignition (%)	Whiteness	Radius-thickness ratio
125um (120 mesh)	250um <0.1 125um	＜3.0	≤1.0	≤0.3	≤1.0	≤4.3	＞70
90um (160 mesh)	180um< 0.190um	＜5.0	≤1.0	≤0.25
75um (200 mesh)	150um< 0.1 75um	＜5.0	≤0.6	≤0.23
45um (325mesh)	112um< 0.145um	＜5.0	≤0.5
38um (400mesh)	75um< 0.1 38um	＜5.0	≤0.5