AP 4012 is an activation salt which is used for alloys containing lead. AP 4012’s special formulation generate activation of leaded Brass , Pewters and various metals such as Lead, Copper and Steel in same application.

AP 4012 is recommended to use especially under conditions where the copper may have been cut through to steel basis metal at the buffing stage.

AP 4012 prevent oxidation during rack transfer and improves the adhesion.