Restoration of the wrought iron window grilles of the HOFBURG Imperial Palace
Project summary.
Restoration of the HOFBURG wrought iron window grilles
Client
HOFBURG Burghauptmannschaft (palace administration)
Location
Vienna, Heldenplatz
Period
2021
Category
Architecture
Anti-corrosion restoration of the heritage wrought iron window grilles of the HOFBURG Imperial Palace, Heldenplatz, Vienna.
On our project at the Hofburg Imperial Palace on Heldenplatz in Vienna, we restored the heavily corroded, hand-forged window grilles of heritage value, weighing approx. 1.0 tonne and with a highly intricate, structured surface. After thorough surface preparation they were treated with our Thermal Spray Aluminium (TSA) technology.
A major challenge was turning the workpiece so that every single mm2 of its surface could be reached and treated.
Surface preparation was carried out with Al2O3 electro-corundum abrasive, which delivers exceptional surface cleanliness and roughness.
The total DFT of the metal layer and the primer and topcoat applied over it is around 600-800 microns.
Transport from our plant and on-site installation, together with the surface treatment, made for a rewarding challenge and hard work.
