Zinc coating is a protective layer applied to metal surfaces, primarily to prevent rust and corrosion. This process often involves galvanization, where steel or iron is coated with a thin layer of zinc through methods like hot-dip galvanizing or electroplating. The zinc acts as a sacrificial anode, meaning it will corrode before the underlying metal does, extending the lifespan of the coated material. This coating is commonly used in various industries, including construction and automotive, to enhance durability. Items like fences, roofs, and automobile parts benefit from zinc coating, making them more resistant to environmental factors such as moisture and salt.