ARDEX-FLEX FL is a rapid setting cementbased grouting compound with excellent flexible and water repellent properties, without the need to add a separate admix Suitable for grouting joints from 3mm to 15mm wide between porcelain, ceramic, non-moisture sensitive natural stone and quarry tiles, as well as extruded tiles and glass blockwork The hardened grout is weather resistant, unaffected by water and can be used for internal and external tiling in dry and wet locations, including swimming pools with non-aggressive water conditions Mixing: A 10kg bag of ARDEX-FLEX FL requires approximately 2 litres of water Full data sheet attached for more information