Meticulous work and practical experience:

Removal of graffiti: Using gentle methods and cleaning agents specifically designed for sandstone and limestone, the graffiti was completely removed without damaging the surface of the artwork.
Local colour correction: To compensate for colour variations caused by graffiti, we carried out local colour correction using metallic glass paint. The restored areas blend seamlessly into the overall picture.
Graffiti protection: Finally, a transparent protective coating has been applied to the walls, which protects the artwork from future graffiti whilst ensuring the sandstone bricks remain well-ventilated.