Ardex X77 Tile Adhesive is a MICROTEC fibre reinforced, cement-based, floor and wall tile adhesive with an extended open time of up to 60 minutes. Specifically formulated to have enhanced properties of adhesion and flexibility, the advanced slump resistance properties make Ardex X77 Tile Adhesive ideal for fixing large format wall tiles.
Ardex X77 Tile Adhesive comes in 20kg bags and in two colours – grey and white. Pallet rates are also available – 50 x 20kg bags.
Ardex X77 Tile Adhesive is ideal for fixing ceramic or fully vitrified tiles and other tiles with low porosity, as well as glass and porcelain mosaics, and terrazzo. The BS EN 12004 C2 TE S1 designation classifies the adhesives as an “improved cementitious adhesives with additional characteristics, reduced slip and extended open time”. Ardex X77 Tile Adhesive has an extended open time of up to 60 minutes, twice the requirement of BS 12004, and double the slump resistance of ‘T’ classified adhesives.
The additional characteristics, determined in accordance with BS EN 12004, makes Ardex X77 Tile Adhesive ideal for fixing all types of ceramic tiles and mosaics, in internal and external situations, including swimming pools.
The mixed mortar has a slump free consistency with very high initial grab enabling heavy wall tiles to be fixed, thus reducing the need for battens and spacers. Ardex X77 Tile Adhesive adheres strongly to most construction materials such as concrete, cement and sand renders and screeds, heated sub-floors, brickwork and blockwork, gypsum plaster, plasterboard and primed existing ceramic tiled surfaces.
A 20kg bag will yield approximately 19 litres of mortar, using approximately 1.05kg of powder per m2 per mm thickness of adhesive bed. The actual coverage achieved in practice will depend on the back profile of the tile, notched trowel and technique used to bed the tiles e.g. a 20kg bag will cover up to 8m² when using an 8mm x 8mm square toothed and notched trowel.
Weight of fresh mortar: approximately 1.5kg/litre
Working time (20°C): approximately 3 hours
Fixing time (20°C): up to 60 minutes
Adjusting time (20°C): approximately 30 minutes