EN
The author discusses the conservation of an iron balustrade in a staircase in the pavillion of Neue Kammern in a palace complex of Sanssouci in Potsdam. The article gives a description of an experimental technique of removing softened film-generating and corrosive layers from metal surfaces by means of a stream of water shooting out of a nozzle under pressure of ca 20 MPa. A new version of the conservation of smith’s iron decorative elements has been proposed. It consists in coating a cleaned metal surface with a protective wax product without an anticorrosive protection by means of painting techniques.