Ardex K11 Levelling and Smoothing Compound – 22Kg Bag

£24.00 exl. VAT

Per Unit


SKU 131071414544345671 Category

Rapid Hardening Levelling and Smoothing Compound for Use Up To 10mm.

  • Free flowing mortar 1.5mm-10mm
  • Excellent surface finish, even in thinner layers
  • Can be applied by trowel or pump
  • Can accept foot traffic after just 2.5 hours regardless of thickness
  • Suitable for floors with underfloor heating
  • Low odour and high yield


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Ardex K11 – Rapid Hardening Levelling and Smoothing Compound

Ardex K11 – Rapid Hardening Levelling and Smoothing Compound is a free-flowing rapid hardening levelling and smoothing compound designed for levelling and smoothing a wide range of subfloor types including cement/sand screeds, gypsum screeds and concrete. The mixed mortar can be applied up to a maximum thickness of 10mm a single application but will retain its free-flowing properties at thicknesses of only 2mm to provide excellent coverage and material economy.

Ardex K11 Uses

Ardex K 11 will level and smooth in a single application uneven internal sub-floors prior to the installation of floor coverings. Ardex K 11 dries to a virtually tension-free layer and can receive floor coverings such as vinyl, linoleum, carpet, etc., after 16 hours under good conditions at 20°C, when applied up to 3mm thick. With regards to surface preparation, the surface must be hard, sound and free of dust, dirt and other barrier materials such as grease, paint, adhesive residues or loosely adhered materials, etc. In all cases where traces of adhesive residues are present these must be sound, well adhered and unaffected by water. Suitable for internal use only.


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Additional information

Levelling Compound

Minimum Thickness: 1.5 mm

Maximum Thickness: 10 mm

Compressive Strength @ 28 days: N/A

Walkable: 2.5 Hours

Finished Floor Covering After: 16 Hours

Suitable for Substrates: Concrete / Screed / Underfloor Heating / Anhydrite Screeds /



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