ARDEX X 7 G
ARDEX X 7 G was first launched to the trade in the 1960s and, to this day, remains at the forefront of the professional tiling industry. Like all ARDEX products, ARDEX X 7 continues to offer the professional tile fixer excellent application properties and performance they can trust.
- Excellent workability and slump resistance
- 5-hour pot life
- Ideal for almost all tile types including non-moisture sensitive natural stone
- Suitable for wall and floor applications
- Suitable for internal areas, as well as swimming pools and external areas with the addition of ARDEX E 90 Mortar Admix
- Suitable for use with underfloor heating
Colours Available: Grey
Unit Size Available: 20kg
ARDEX X 7 G – ADHESIVE BY DESIGN
ARDEX X 7 G is a versatile multipurpose tile adhesive, with enhanced properties of adhesion, suitable for fixing ceramic, porcelain, glass mosaics, and most non-moisture sensitive natural stone floor and wall tiles. ARDEX X 7 G is frost and weather resistant, and can be used internally and externally as well as in wet areas and swimming pools.
The BS EN 12004 C2 TE S1 designation for ARDEX X 7 G classifies the adhesive as ‘improved deformable cementitious adhesive with reduced slip and extended open time.’ The additional characteristics for ARDEX X 7 G determined
in accordance with BS EN 12004, are a tensile adhesion strength of greater than 1 N/mm² as an initial adhesion value, greater
than 1 N/mm² after water immersion, greater than 1 N/mm² after heat aging, and greater than 1 N/mm² after freeze thaw cycling, making this product suitable for internal and external locations, including swimming pools. The mixed mortar has a slump free consistency with high initial grab, enabling heavy wall tiles to be fixed, thus reducing the need for battens and spacers. ARDEX X 7 G adheres strongly to most construction materials such as concrete, cement and sand renders and screeds, heated sub-floors, brickwork and blockwork, gypsum plaster, anhydrite screeds, plasterboard and existing ceramic tiled surfaces. ARDEX X 7 G can also be used for bonding rigid foam insulating materials, e.g. polystyrene, polyurethane, etc. ARDEX X 7 G can be used to fix tiles to concrete or cement/sand screeds with underfloor heating.
The backgrounds and surfaces to receive tiles must be clean, firm, free of dust, dirt, oil, grease and other barriers to adhesion, as well as being strong enough to support the weight of the tiles being fixed. Ensure that the background has adequate drying time, as given in the relevant part of BS 5385, and is correctly primed, where required, prior to fixing the tiles. Install tiles in accordance with the relevant parts of BS 5385 and BS 8000: Part 11 Workmanship on Building Sites. Backgrounds to receive ceramic tiles should be finished so any gap under a 2m straight edge does not exceed 3mm (Surface Regularity 1). ARDEX X 7 G can be applied to dry or moist surfaces, but moisture sensitive materials must remain dry after tiling.
Add the ARDEX X 7 G powder to water in a clean container, whilst stirring and mixing thoroughly to give a slump-free, easily worked mortar. The use of a mixing paddle with a 10mm chuck, variable speed electric drill, makes light work of mixing.
The mixing proportions by volume are:- Approximately 21/2 parts ARDEX X 7 G powder: 1 part water. A 20kg bag of ARDEX X 7 G requires approximately 6 litres of water. The consistency of the adhesive can be adjusted to suit site conditions and the
materials being fixed, but must always be slump-free. The pot life of the mixed mortar is approximately 5 hours at normal temperatures (20°C). The mortar should be applied attemperatures above 5°C.
The mixed adhesive is applied to the prepared surface with a trowel, and then combed through with a suitably sized notched trowel in straight ribs to give a ribbed mortar bed. The tiles should be fixed within the open time of the applied adhesive, and pressed into place with a twisting and sliding action to achieve the required contact. For tiling to walls in dry internal locations, the adhesive contact should be with at least 50% of the back of the tile. For maximum performance, at least 80% adhesive contact to the back of the tile should be achieved. When tiling to all floors, and in wet areas, such as showers and swimming pools, or in external locations, achieving a solid bed usually requires the backs of the tiles to be buttered immediately prior to placing into the ribbed bed, so no voids are left beneath the tiles. The size of the notched trowel chosen depends on the tile size, the surface being tiled, the profile on the back of the tile and the degree of coverage required. ARDEX X 7 G is classified
as having an extended open time of not less than 30 minutes when measured in accordance with BS EN 12004. For optimum performance under typical UK site conditions, tiles should be fixed within 20 minutes, and can be adjusted for up to 10 minutes at 20°C.
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