What is galvanised iron? - Leaving Cert Engineering - Question 1(f) - 2011

Galvanised iron is a term used to describe steel that has been coated with a layer of zinc. This coating protects the iron from corrosion and rust, significantly extending its lifespan. The galvanisation process involves either hot-dip galvanising or electro-galvanising, where the zinc forms a barrier that prevents moisture and air from reaching the underlying steel. This makes galvanised iron an ideal material for outdoor structures and applications exposed to harsh weather conditions.