Complies with C2TE S2 according to EN 12004 and exceeds the “Guideline for flexible mortars”. For covering cement screeds/cement-based heating screeds older than 3 days (as soon as they can be walked on).* For laying ceramic tiles and slabs, porcelain mosaic, brick tiles, clinker bricks and porcelain stoneware. For laying on sanded anhydrite or Gypsum flowing screeds, prefabricated concrete parts, aerated concrete, heated screeds, plasterboard, Gypsum fiber boards, dry screeds, mastic asphalt (only indoors), insulation boards, gypsum floorboards, gypsum plasters and on old wall and floor tiles. For repairing and leveling out minor unevenness on walls and floors, before laying tiles and slabs. Prompt purchases will be combined, please request the total amount before paying (after.