The 2-story underground parking garage of the "KVK" utility fund is centrally located in the direct vicinity of Kassel's main train station. The wear and tear caused by the narrow geometry as well as the complete failure of the existing ramp heating system forced the users to be careful, especially during the autumn/winter period. Chlorides penetrating the supporting structure made the rehabilitation measure necessary. The choice fell on the system solution WestWood® Wecryl surface protection system OS 10 - 2.0.