Ardex S7 Plus – 15Kg Bag

£126.46 exl. VAT

Per Unit

Out of stock


SKU 129071415300034857 Category

Flexible Waterproof Coating for Floors and Walls.

  • Suitable for internal and external use
  • Use to waterproof swimming pools prior to fixing ceramic tiles
  • Resists water pressure up to 5 Bar
  • Applied by trowel, produces a smooth finish
  • Tiles can be fixed to second coat after just 4 hours
  • Excellent slump resistance

Out of stock


Ardex S7 Plus – Waterproof Coating

Ardex S7 Plus – Waterproof Coating. A flexible waterproof/ tanking coating system for use prior to fixing ceramic tiles using an appropriate Ardex adhesive. Suitable for floors and walls.

A 15kg bag will cover approximately 6.25m² with two coats applied. 1.2kg/ m²/ 1mm dry (1.2mm wet).

Ardex S7 Plus Uses

Suitable for use in internal and external swimming pools. A 15kg bag of Ardex S 7 Plus should be mechanically mixed with 4 litres of water to produce a slump free mortar. The use of an Ardex mixing paddle with a 10mm chuck, variable speed (at least 650 rpm) electric drill makes light work of mixing. Remixing of the mortar after 2-3 minutes (standing time) will improve the consistency.  When mixed, Ardex S 7 Plus has a pot life of approximately 60 minutes at 20°C. This time is extended at lower and reduced at higher temperatures. Thicker mixes for patch filling of holes will have a shorter pot life.


Ardex S 7 PLUS is initially applied to the prepared surface with a 4mm x 4mm toothed and notched trowel (Stage 1) and the ribs immediately flattened to provide a smooth surface (Stage 2). The thickness of the coating is 1.2mm wet and 1mm when dry.

All information on surface preparation, mixing and drying & hardening can be found on the technical datasheet.


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Want to see how Ardex S7 Plus has been used? Click here to view a range of Ardex Projects.

Additional information


Minimum Thickness: N/A

Maximum Thickness: N/A

Compressive Strength @ 28 days: N/A

Walkable: 4 Hours

Finished Floor Covering After: Tile – 4 Hours

Suitable for Substrates: Concrete / Screed



For more than 60 years, ARDEX has been a quality leader for the flooring and tiling industries, the brand of choice for installers and distributors. ARDEX today is still an independent family-owned business. This means that in our permanent efforts to achieve market-shaping innovations, we have been able to retain our most important tradition: uncompromising quality. This is something we guarantee by applying the latest rigidly enforced quality assurance procedures, making it no coincidence that they are regarded as a premium partner of the construction industry. Strong internal growth and intelligent acquisitions in foreign markets have put the Group on the map with 53 subsidiaries and 3,000 employees on all continents. With its 14 major brands, the ARDEX Group generated a worldwide annual turnover in excess of 770 million euros in 2018. This marks an important milestone and they are becoming one of the world’s leading suppliers of high-quality specialist building materials.

Technical Information