Zinc plating is a valuable tool which is used to combat corrosion of steel. A metal bond is formed between the zinc and the steel, which allows the zinc itself to corrode before the steel. This way the zinc will be sacrificed allowing the steel to remain intact.
The basic principle behind electroplating is the process of depositing a metal layer on a metal base using a direct current through an electrolyte solution. Zinc is one of the easiest metals to plate, giving good corrosion protection without using exotic chemicals.