Galvanising is a process of coating iron with zinc to protect it from corrosion. This is done by immersing the iron in a bath of molten zinc, which forms a protective layer on the surface of the iron. The process is also known as galvanization or hot-dip galvanizing. Galvanising is used in many industries, such as construction, automotive, and manufacturing, to protect metal components from rust and other forms of corrosion.