Mica powder widely use in high-grade paint, coating, ink, rubber, plastics, wire , ... specific gravity 2.70-3.20. mica powder have special acid-base resistance , chemical stability, also have good insulativity, ... corrosion resistance.2. its insulativity,heat resistance,anti acid,anti alkali,crush-resistance,exfoliative,be use for electrical ... (Fe2O3)0.06%Water content (H2O)0.25% High quality Mica Powder