Galvanising is one of the most common methods to protect steelwork from corrosion. This method is quite easy and cost effective for all metals. Its procedure is to apply thin coating of zinc to a thicker base metal. This helps to shield it from the surrounding environment.
Primer paint ensures better adhesion of paint to the surface, increases paint durability, and provides additional protection to the steelwork. Usually it is used before painting with other paints.
Intumescent paint which can be also called as coating are used in buildings as a passive fire resistance measure. They can be applied to structural steelwork as an aesthetically pleasing fireproofing product.
Powder coating is applied as a free-flowing powder in a completely dry form. Think of it as paint with the solvent part removed. The coating is painted electrostatically and then cured under heat which causes it to form a kind of “skin.”