For grouting ceramic wall and floor coverings made of fine stoneware, stoneware and earthenware slabs, stoneware strips, clinker brickwork and clinker floor tiles with a water-impermeable and deformable joint mortar. In living areas, in bathrooms, showers, on balconies, terraces, on facades, in commercial businesses and industrial areas with heavy wet loads, e.g. B. washing halls and laundries, and in traffic buildings, e.g. B. Underpasses and subway stations. On heated screeds, dry screeds, precast concrete elements, plasterboard, gypsum floorboards, chipboard, wooden floorboards and in areas with strong temperature fluctuations. Waterproof and frost-resistant, universally usable inside and outside, on walls and floors. For efficient work, can be washed quickly and after approx. Walka.