Locomotive cladding sheets were exposed to all kinds of weather conditions, so they always need protection against corrosion. This meant that the paintwork had to be regularly redone, which is why the use of polished sheet steel commenced in around 1880. The Württembergische Staats-Eisenbahnen purchased several locomotives with polished sheet steel cladding, and in 1907 and 1908, it had a total of 11 Fc. locomotives. These locomotives with polished sheet steel cost 1,100 marks more than the standard versions. Overall, however, the use of polished sheet steel wasn’t any more economical, because it rusted just as quickly as painted steel.