Ardex A38 Rapid Drying External Cement – 25Kg Bag

£52.55 exl. VAT

Per Unit


Rapid Setting & Ultra Rapid Drying Cement for Floor Screeds in Internal or External Locations.

  • Suitable for bonded, unbounded and floating screeds
  • Can accept foot traffic after just 3 hours
  • Ready for some floor coverings after 4 hours
  • Suitable for under floor heating systems
  • Can be pumped for fast application


Ardex A38 – Rapid Drying Cement for Internal & External Screeds

Ardex A38 – Rapid Drying Cement for Internal & External Screeds has been specially formulated with ‘Rapid Dry Plus Formula’ Technology. This screed can be walked on just 3 hours after application and ceramic and natural stone tiles can be installed after just 4 hours irrespective of thickness, making it ideal for fast track tiling projects. Resilient floor coverings such as carpet, vinyl and wood can be installed after 48 hours irrespective of thickness. Achieves rapid strengthening and will pass a BRE Screed (ISCR) Test after just 6 hours. After a day, it will also exceed the acceptable minimum compressive and tensile bending strengths attained by ordinary cement screeds after 28 days.


ARDEX A 38 is used to produce bonded, unbonded and floating screeds for internal and external locations, including wet areas such as swimming pools. It can also be used for large repairs to existing cement/sand screeds. It is ideal for situations where early foot traffic and rapid hardening is required.

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Additional information

Suitable for Substrates


Minimum Thickness: 15mm

Maximum Thickness: 75mm

Compressive Strength @ 28 days: 45 N/mm2

Walkable: 3 Hours

Finished Floor Laying After: Tiles – 4 Hours; All Other – 48 Hours

Suitable for Substrates: Concrete / Screed / Insulation / Under Floor Heating



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