Thermal spray zinc coating (also called zinc metallizing) melts zinc wire and sprays it onto steel to form a dense, sacrificial layer that provides long-term galvanic corrosion protection, with zero curing time. Zinc is anodic to steel, so it corrodes sacrificially to protect the underlying steel, continuing to shield the metal even if the coating is scratched or mechanically damaged. It is widely used on structural steelwork, bridges, offshore platforms, pipelines, and other large infrastructure exposed to harsh marine and industrial environments.