What is continuous hot-dip galvanizing?
A. Hot-dip galvanizing* is a form of galvanization. It is the process of coating iron or steel with a thin zinc layer, by passing the steel through a molten bath of zinc at a temperature of around 460 C (860 F). Zinc “rusts” to form zinc oxide, a fairly strong material that stops further rust, protecting the steel below from the elements. Galvanized steel is widely used in applications where rust resistance is needed, and can be identified by the crystallization patterning on the surface (often called a “spangle”).
