Ardex A38 Mix Pre Blended Ultra Rapid Drying Cement 25kg

In stock | | 2-3 Working Days

  • Pre-blended with graded sand for convenience - just add water
  • Ideal for screeding in locations where access is limited
  • Walkable in 3 hours
  • Receives ceramic and natural stone tiles directly after only 4 hours
  • Install carpet, wood and vinyl floorcoverings after 48 hours
  • Passes BRE Screed (ISCR) Testing after 6 hours After just one day, achieves the acceptable minimum compressive and tensile bending strengths attained by an ordinary cement screed after 28 days
  • For bonded, unbonded and floating screeds
  • Can be used with underfloor heating systems


ARDEX A38 MIX is a blend incorporating ARDEX A38 cement and graded sands, and has been specially formulated to produce ultra-rapid drying floor screeds for internal and external locations.  With ‘RAPIDRY PLUS FORMULA’ Technology, an ARDEX A 38 MIX 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 floorcoverings such as carpet, vinyl and wood can be installed after 48 hours irrespective of thickness. ARDEX A38 MIX 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 A38 MIX 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.

Working time at 20°C
approx. 1 hour

Walkability at 20°C
approx. 3 hours

After 1 day 25.0 N/mm²
After 7 days 35.0 N/mm²
After 28 days 40.0 N/mm²

After 1 day 4.0 N/mm²
After 7 days 4.5 N/mm²
After 28 days 5.5 N/mm²

Normally after 6 hours

The Speedy Moisture Tester (Carbide Method) must be used to test moisture. Please consult ARDEX Technical Services for further advice.

More Information

MPN 24160
Brand Ardex
Area Internal | External
Coverage Approximately 0.5m2 at 25mm thick per 25kg unit
Material Other Materials
Size 25 kg
Type Adhesive
Width (mm) 0

Technical Info

Delivery Costs:

Delivery fees are calculated based on the weight of your order and your delivery location. You can use the delivery fee calculator in your basket or on the checkout page to find the exact cost.

Delivery Area:

We currently only deliver to UK Mainland and the Highlands. We do not deliver to the Islands, Ireland, or Northern Ireland.

Next Working Day Delivery (Subject to Stock Availability):

Orders placed before 12:00 pm (noon) will be delivered the next working day, excluding weekends and holidays. This service starts from £6.50 (including VAT) and the final cost is based on the weight of your order and your delivery location. You can check the exact cost in your shopping cart or on the checkout page by entering your postcode.

Economy Service (2-3 Working Days):

This service is only available for orders over 50kg. There is no additional charge for this service.

Sample Orders:

All sample orders are shipped for free via Royal Mail Tracked 48 or 24 service. Delivery typically takes 1-3 working days.

Delivery Methods:

Non-sample orders under 50kg will be dispatched via DPD or APC Overnight. Non-sample orders over 50kg (quarter, half, and full pallets) will be dispatched via Palletways or Kandrmason.


Simply place your order online and choose the Click & Collect option at checkout.
We'll email you once your order is ready for pickup at your chosen store.
Collection hours: Monday - Friday: 8:30 am to 4:30 pm

For more information, please visit our Delivery Information page.

- Please inspect your order for any damages upon delivery and notify us immediately if you find any.

- We will replace any items that are damaged during transit.

- We accept returns within 30 days of delivery.

- Please note that customers are responsible for the cost of returning items.

- We will process returns and refunds promptly once the items are received at our warehouse.

Returning Trims
Schluter Trime
Returning trims - 35% restocking fees applied.
Returnign trim with replacement - 15% restocking fees applied
Customers are responsible to arrange returning the item.
If we arrange a return colleciton, a £35 return item collection feed will be applied.

Mapei-Profilpas Trims
A 20% restocking fee will be applied. (Item must be in re-sellable condition)
The customer is responsible for returning the item.

For more information, please visit our Return & Exchange page.


Product Questions