Profile: Tough International Pvt. Ltd. manufactures & exports mica blocks, films, splittings, scrap, flakes and powder. Knife dressed sheet mica of a minimum thickness of 0.18 mm is called block mica and of thickness between 0.05 up to 0.18 mm is called thin mica. They are available both in random and calibrated thickness. Grinding of mica scrap properly and cleaning by removing all types of foreign particles produces mica flakes & powder. They are further screened or classified to various granulation sizes.