Quartz-based cementitious grout for the grouting of tiles and marbles, where aesthetics require a very smooth joint (glass mosaics, polished granites). It is easy to clean and work with, while being water-repellent. Its glassy surface does not harbor bacteria and after 28 days ensures an abrasion-resistant surface that does not scratch or crack. It can be applied in both interior and exterior spaces, on walls and floors.