Galvanization is an electrochemical process of protecting metals through an electrolysis process. Applying a protective zinc coating on steel or iron prevents corrosion. There are several coating types such as galvanizing, nickel plating, chrome plating and copper plating. The surface is prepared by sanding, brushing, polishing and sandblasting. Galvanization process is increasingly used more instead of painting, primarily due to better and more durable corrosion protection.