'Trouble and Repair Free'
Despite the popularity of Durabestos and other building materials, the Wunderlich Company persisted with the production of architectural metalwork. The plant at Redfern continued to produce metalwork such as memorial tablets, letters and name plates, often utilising vitreous enamelling which was a technique that had been introduced in the late 1920s.
During the war, Wunderlich's metalworking factories were contracted to produce equipment for the defence forces of Australia and the United States of America. Wunderlich adapted their factories to make components for Wirraway and Mosquito aircraft, and to manufacture items such as ammunition boxes, lockers, funeral caskets and radar parts.
Later, a factory at Villawood in Sydney was established in 1956 for metalwork production such as the manufacture of aluminium and a range of aluminium windows, doors and curtain walls were produced. Other lines such as louvres and grilles were also manufactured.
The production of metalwork for building and architecture was an ongoing theme throughout the history of Wunderlich. They continued to promote the benefits of metal ceilings, long after the fashion for these had waned and the majority of their metal production was turned over to utilitarian items.