GALVANIZE
Hot Dip Galvanize
Iron is a material most commonly used in every field today. Its most important and negative characteristic is that it may be oxidized quickly and easily, that’s why it must absolutely be coated with a protective layer. Coating iron with zinc is one of the various solutions
such as obtaining stainless alloys, painting, and coating with a stainless metal; developed against the matter of oxidation.
Mentioned zinc coating process is called as galvanization. Zinc coating is absolutely the most economic protection method especially in performing the works that require very long life, since it has a very long lasting duration life.
Zinc that is used in hot dip coating method cannot be plucked out of surface of iron by impact and abrasion, since it reacts as alloy and forms a compound with iron. In case a small iron surface occurs as a result of any physical destruction, or abrasion, zinc coat prevents oxidation of occurred iron surface since it is more anodic than iron. Paints have no such protection, and when coating materials more cathodic than iron such as nickel, copper, and brass are used, it is seen that occurred surface oxidizes faster and in deeply.
Amongst all industrial coating materials, only zinc has this two-way protection characteristic. Life of galvanized material with regard to coating has been shown in the table below.