The zinc Coating when intact, prevent corrosive substances from reaching the underlying steel or iron. Zinc Coating is more durable coating for the construction site for protects the steel from the rusting effect. Zinc protects the steel by corroding it first. In the event the underlying metal becomes expose, protection can continue as long as there is zinc close enough to be electrically couple. After all of the zinc in the immediate area is consume, localize corrosion of the base metal can occur. Hot Dip coating in zinc coating is widely is use for the coating of iron and steel product, because zinc coating is of thick and gets easily detachable with the iron rod due to its sticky material.
This is the most common use for galvanize metal, and hundreds of thousands of tons of steel products are galvanize annually worldwide. In develope countries most larger cities have several galvanizing factories, and many items of steel manufacture are galvanize for protection. Typically these include: street furniture, building frameworks, balconies, varandah, staircases, ladders, walkways, and more. Hot dip galvanize steel is also used for making steel frames as a basic construction material for steel frame buildings.
Construction galvanize steel is mostly used as it is more durable and cost the galvanize zinc coating is also affordable for the the construction site.
Without protection, steel will rust due to atmospheric conditions over time. The degree of rust will depend on the environment that the product is in. Rust is an iron oxide (typically a red oxide) which is formed by the reduction and oxidation reaction of iron and oxygen, in the presence of water or air moisture.
Rusting of iron will increase if the Zinc coat is on perfectly attachable with the steel or iron product and due to which the bonding of weldment and steel does not occur and structure may eventually fail.