Galvanized metal – any steel or iron which has been encapsulated with a corrosion resistant zinc coating either by hot dipping the metal in molten zinc or electroplating the metal with zinc. This galvanization process protects the metal in two ways:
- the coating forms a corrosion resistant barrier which prevents corrosive materials from contacting the underlying metal
- The zinc continues to protect the metal even if it becomes scratched by acting as a sacrificial anode
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