Thixotropic cementitious adhesive with no vertical slip, extended open time and high polymer content for professional use. Available in white or grey.Used for laying stoneware tiles, all kinds of ceramic and stone material provided it is stable against humidity. Particularly suitable for fixing large-sized tiles (upon to 3600 cm²) even on not perfectly flat substrates (adhesive thickness of up to 10 mm). KEDY 1S can be used on indoor and outdoor floors and walls, on cement plasters and screeds, on top of existing flooring, on heating screeds and cellular concrete blocks (indoor use only), in high-traffic areas, in swimming pools, on concrete structures (provided they are adequately cured), as well as on substrates waterproofed with the KEDILASTIC or ISOLFLEX line. After specific priming with APPREX G, it can also be applied to anhydrite screeds, gypsum walls and plasterboard panels. Classified as a C2TE S1 adhesive (according to EN 12004 and EN 12002).