Cologne campaign: Away with the graffiti!

Every year, the City of Cologne mounts a campaign in which all its citizens, associations and firms are called upon to tidy up their city. This year we have taken an active part.

On 5th April 2003, a four-man team led by Jörg Maassen removed graffiti from the concrete walls under the A 555 autobahn bridge. For this special Cologne campaign, we used our SPI technology in the wet and moist jet techniques. After over four hours work, the walls looked almost new again!