Mirvac had contractors fit the balustrading to the jetty at the Docklands, located in Melbourne, Australia. During installation, the contractors used mild steel tools to secure the bolts/nuts to the structure. This resulted in deep scratches that over time caused rusting on all nuts and bolts, as well as surrounding stainless steel. Damage to the passive layer also left the stainless vulnerable to contaminants in the environment, accelerating the corrosion of the stainless steel.
Mirvac consulted with TRJ as to the most appropriate method of rectifying the problem caused by cross contamination of metals and damage to the passivation layer. Discussions between Mirvac and TRJ concluded that resolving the rusting issue with pickling paste would pose an environmental risk to the area due to the jetty being located over the Yarra River. They also wanted a solution that would ensure minimal ongoing maintenance on the structure.