Surface cleaning of drain grates

The cast iron drain covers in the Szabadság Square underground garage had suffered significant corrosion and contamination over the years, leading not only to aesthetic but also functional issues. Our goal was to restore these grates to a clean, well-maintainable condition through industrial surface cleaning, while also preparing them for the application of new protective coatings—preserving both their industrial character and structural integrity.

The accompanying photo documentation illustrates the different phases of the process, from the initial condition to the fully cleaned surfaces.