ÖZKD LXXVII Heft 3 Generalsanierung Parlament, pp. 72-75, 2024/04/17
Generalsanierung des Parlamentsgebäudes 2018–2022
Among the varieties of metal objects to be found in the Federal Assembly Hall (Bundesversammlungssaal), many showed only occasional signs of wear and tear. Two such varieties are described in this article by way of example. The oil-gilded, zinc cast surfaces exhibited superficial dirt and partial imperfections. A dry cleaning procedure was carried out, the surfaces were treated with surfactants, and the imperfections in the gilding were retouched. The exposed brass surfaces were originally lacquered, but due to use and cleaning, this finish is now almost non-existent. The surfaces are now covered with a matte film of tarnish. In addition to general surface contamination, corrosion and mechanical damage have also resulted in an inhomogeneous appearance. White spirit was used to clean the surfaces and the products of corrosion were mechanically reduced. Three dimensionality and a homogeneous appearance were achieved.
