Corrosion Inhibitors for Multi Metal System do not allow accumulation of reducing agents to the surface of the metal and forms a thin protective film that covers the surface and molecules of the chemical gets adsorbed on the same, making the surface inert and prevent almost all kind of reactions with corrosive agents. These metal corrosion inhibitors prevent attack of acidic components on metal components without interfering with the actual process. The type and concentration of the corrosion inhibitors to be used depend upon the characteristics of metal that is needed to be protected and the operating conditions under which the metal works. Iron, aluminum, copper, etc., all require specific acid inhibitor formulations of corrosion preventative coatings for desired result.