elektroplettering

Elektroplettering is a historical method for producing lettering on a substrate through electrochemical deposition. Letters are formed by depositing metal onto a prepared surface to create relief or intaglio markings that can be used for printing, signage, or decorative purposes.

The technique developed in the 19th century alongside electrotyping, enabling rapid production of durable printing plates and stamps. It complemented traditional engraving by allowing multiple identical copies to be produced with less hand labor, which helped scale up printing and signage production.

Process-wise, a model or mold of the letters defines the area to be plated. The substrate is connected as the cathode in an electrolytic bath while a metal anode dissolves into solution. When current is applied, metal ions are reduced at the substrate, building up a metallic layer in the shape of the letters. The resulting piece may be a raised relief suitable for letterpress printing or a recessed form depending on the deposition geometry. After plating, the plate is separated from the mold, finished, and prepared for use.

Applications historically included printing plates for newspapers and books, as well as decorative plaques and signage. The method offered durable, repeatable surfaces and the ability to reproduce type with relatively lower labor costs compared with hand engraving.

Today, elektroplettering is largely superseded by photomechanical, digital, and CNC techniques, but it remains of interest in restoration projects and artisanal metalwork and is studied as part of the history of printing and typography. Safety and environmental considerations are important due to the chemicals used in electroplating processes.