Deteriorating iron creates rust that, in turn, performs an aggressive action that corrodes it. Two contrasting elements capable of producing excellent results. The metal is protected by film where it must not be allowed to corrode, the procedure quite complex, while the decorative design is left without protection and thus free to rst. A technique similar to etching with acid, but the technique is primitive because where acid is not used to gouge the metal, seawater leaves its mark. The procedure can be a long one, and can even take months. The sea and water are feminine symbols that the artist in this case uses to paint on iron. In this technique artistic knowledge supports the knowledge of experience where nothing is left to chance.