Zinc coating protects the base metal by providing a barrier to corrosive elements and also by the sacrificial nature of the coating. Ultimate service life depends on coating thickness and the severity of the environment.
Galvanized Steel features excellent forming properties, paintability, weldability, and is suitable for fabrication by forming, pressing and bending.
Zinc coating is one of the most effective and economical methods of protecting bare steel from a corroding environment.
Galvanized Coil is produced from Cold Rolled (or Hot Rolled Pickled & Oiled) coil that has been passed continuously through a pot of molten zinc. The amount of coating applied to the surface is controlled by wiping, rollers and/or air jets. The coated product is then cooled and passes through leveling equipment. The zinc coating protects the steel substrate in two ways. First, it creates a barrier that retards the formation of rust. Second, zinc has a self-sacrificial character and will extend itself to cover nearby small uncoated areas.