Microcrystalline zinc plate, Hot Stamp Zinc Plate High purity, smooth surface Used for zincography, ... Microcrystalline zinc plate, sensitized zinc plate, photoengraving zinc plate, Hot Stamp Zinc Plate Application: Used for plaques, awards, signage and nameplates ... purity, smooth surface.2. There is blue photosensitive coating covered with protective film on the surface which is easy to expose ...