24 hour settings adhesive which is water resistant and frost-proof. Ideal for use as floor adhesive or as a wall adhesive .Suitable for use on solid substrates such as concrete screeds and existing floors. Suitable for internal and external use. Can be used for adhesive bed up to 10mm thick. Available in two colour variants: White and Grey. Suitable for use with underfloor heating. Suitable for use with ceramic, porcelain, glass tiles, mosaics. Mapei Keraflex offers a hassle free solution for bonding tiles to all manner of substrates including cement screeds, cement-based renders, and cured concrete. Can be used with ceramic tiles of every type and even stone-based materials that are not extremely sensitive to moisture.