... cable and so on. Mica Powder Fineness of Mica powder :800 mesh ,1500mesh ,3000 mesh .Mica mostly crystallize into monoclinic system ... 2-3 ,specific gravity 2.70-3.20. mica powder have special acid-base resistance , chemical stability, ... alkali,crush-resistance,exfoliative,be use for electrical insulating material of electrical equipment and electrical appliance. Physical propertySizeWhitenessAverage ...