Lectroetch originated electrochemical marking in 1943. Since then, the process has proven itself in countless metal parts marking applications for identification, inspection and inventory control. It is ideal for reproducing trademarks, part and serial numbers, measurement markings, inspection stamps and date codes. Objects made of conductive ferrous and nonferrous metals and alloys are easily marked. Metals plated with chrome, nickel, cadmium and zinc also mark well due to conductivity. Painted, anodized or phosphated parts can also be processed by deep etching (.001-.006 in.) prior to coating application.