Electrolytic marking is based on an electrochemical etching process where the image on a stencil is transferred to an electrically conductive product by the action of electrolyte and electricity

Electrochemical marking or etching is a process by which a low voltage current passes through an electrolyte to etch away an area of a metal component.

A stencil placed between an electrode and the component restricts the area of etching to the stencil design, which may be a trademark, part number or any similar identification mark.

Any metal can be etched be it flat, round, solid or hollow, assembled or loose provided that it is conductive, that is, not painted, anodised or otherwise insulated.

Find out more about electrochemical etching marking systems on oestling-markingsystems.com

http://www.oestling-markingsystems.com/de/markiersysteme/elektrolytische-markiersysteme.html