ARDEX X 7 R S1 / ARDEX X 7 R S1 W Rapid Setting Flexible Adhesive for Floor and Wall Tiling

ARDEX X 7 R S1 is a rapid setting flexible tile adhesive that allows tiles to be grouted and trafficked just 3 hours after fixing.

• New improved formulation with fibre technology for improved strength and flexibility with S1 deformability
• Tiles can be trafficked and grouted after 3 hours
• Semi-pourable consistency ideal for solid bed fixing large format floor tiles
• Water content can be adjusted to produce a slump-free mix for coving/skirting and wall tiles

USE
ARDEX X 7 R S1 and ARDEX X 7 R S1 W are ideal for fixing fully vitrified or porcelain tiles and other tiles with low porosity, as well as glass and porcelain mosaics, terrazzo, ceramics, natural stone (excluding translucent) and brick slips. For moisture- sensitive natural stone and
agglomerated stone tiles, the use of an ARDEX ‘RAPIDRY FORMULA’ adhesive such as ARDEX S 27 W MICROTEC or ARDEX S 28 W Natural
Stone Wall and Floor Tile Adhesives is recommended.

ARDEX X 7 R S1 and ARDEX X 7 R S1 W adhere strongly to most construction materials including concrete, cement/sand renders and
screeds, heated subfloors, brickwork, blockwork, correctly primed calcium sulphate based screeds, tile backer board and plasterboard.
Suitable for installations subject to limited movement and vibration. Suitable for use in internal and external locations, including swimming pools.

POT LIFE
The pot life of the mixed mortar is approximately 60 minutes at 20°C (45 minutes for the slump free consistency).

COVERAGE
A 20kg bag of ARDEX X 7 R S1 or ARDEX X 7 R S1 W will yield approximately 14.3 litres of mortar, equivalent to approximately 4.7m² at 3mm bed thickness. Material requirement is approximately 1.4kg powder per m² per mm. Coverage will vary depending on nature and flatness of surface and on the trowel used.

APPLICATION
The mixed mortar is applied to the prepared surface with a trowel and then combed through with a suitably sized notched trowel to give a straight ribbed adhesive bed; 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. Tiles should then be fixed within the open time of the applied adhesive (below) and pressed into place with a twisting and sliding action to achieve the required contact as advised in BS 5385.
For tiling to walls in dry internal locations, current British Standard Codes of Practice recommend that maximum practical contact
between the tile and the adhesive is achieved. Tiles with a surface area of less than 0.1 m2, but which weigh more per square metre than 70% of the background’s capacity to carry the weight, should be solidly bedded. When tiling to floors and all external situations, or in wet areas such as showers and swimming pools, solid bed fixing should be achieved.

To ensure solid bed fixing with the semi-pourable mix, simply press the tile into place with a twisting and sliding action. With the slump-free mix, this usually requires the tiles to be buttered immediately ARDEX X 7 R S1 and ARDEX X 7 R S1 W have an open time of 30 minutes when measured in accordance with BS EN 12004: 2007 + A1: 2012. For optimum performance under typical UK site conditions however, tiles should be fixed within 20 minutes. The mortar should be applied at temperatures above 5°C.