BlueMagic 500-06 Metal Polish Cream - 19 3/8 oz. by Blue Magic. Save 37 Off!. $12.82. BlueMagic Metal Polish Cream polish works on all metal surfaces and is non-abrasive. Works great on chrome, aluminum, mag wheels brass, copper, sterling silver, stainless steel or gold. Removes tarnish and oxidation, provides a lasting protective coating and can be used with buffers and polishers.