Chromed or plated surfaces need to be treated gently, so Zymöl Metall Polish was developed specifically for automotive brightwork. Common brightwork metals include stainless steel, aluminium, nickel and others, all of which are susceptible to damage by salt corrosion, engine oils, acids and other environmental exposure. Zymöl Metall Polish has a special blend of oils that gently remove the tarnish and discolouration caused by exposure to the elements.