Cementitious adhesive for porcelain tiles, ceramic tiles, and natural stones, made of mixed binders and fortified with polimers that provide strong adherence, reduced slip, and extended open time, for interior and exterior floor and wall coverings. Suitable for bonding all types of porcelain tile, ceramic tile and all types of natural stone and glass mosaic. Suitable for wet and dry areas. Highly recommended for exterior façade installations, large-area flooring and applications with underfloor heating.