Anti-Graffiti-Beschichtungen: Haltbarkeit und biologische Wechselwirkungen

The biodegrability of three anti-graffiti systems as well as the development of microbiota on rocks treated and non-treated in the laboratory and under field conditions have been tested. All three products tested have had a stimulating and changing effect on the polymicrobial flora of rock and concrete. The growth of the rock attacking microorganisms was enhanced, especially such organisms causing aesthetical damage. The choice of the treatment technique and its application therefore should be carefully considered and tested prior to recommendation and application in a specific case and rock systems.