In current use, it typically means hot dip galvanizing, a metallurgical process that is used to coat steel or iron with zinc. This is done to prevent corrosion of the ferrous item; while it is accompalished by non-electrochemical means, it serves as electrochemical purpose.
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. When exposed to the atmosphere, pure zinc reacts with oxygen to form zinc oxide, which further reacts with carbon dioxide to form zinc carbonate, a dull grey, fairly strong material that stops further corrosion in many circumstances. Galvanized steel is widely used in applications where rust resistance is needed.
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