Metal plating is a method where metals are deposited on substrates, such as steel or aluminum.  This process is used to coat and protect metals and other materials by forming a thin layer of metal over the substrate. It can be achieved through electroplating or an electroless plating process.  Plating has been around for hundreds of years and is critical to modern technology.  The many benefits of plating are corrosion protection, changing conductivity, improving friction, heat resistance and hardening of materials.