DURABASE CI is a tiling mat with an installation height of 3.0 mm. It is made of yellow HDPE (high density polyethylene) and the mat indentations with their laminated grid give it very high rigidity and an optimum bond with thin bed mortar. The material is elastic and resistant to rotting and cannot be damaged by reactive substances and liquids, such as alkalis, solvents or oils. It is also highly impervious to diffusion of water vapour. DURABASE CI bridges cracks, decouples the covering from the substrate and is suitable for achieving sealing in combination with the tile covering.