ARDEX A 38 produces ultra-rapid drying floor screeds which can be walked on after just 3 hours, and have floorcoverings installed in as little as 4 hours, regardless of thickness.
Use ARDEX A 38 for bonded, unbonded and floating screeds in internal and external locations, including wet areas such as swimming pools.
- Walk on after 3 hours
- Receives ceramic and natural stone tiles directly after only 4 hours
- Install carpet, wood and vinyl floorcoverings after 48 hours
- Maintains a working time of 1 hour
- 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 internal and external use, including wet and submerged areas
Unit Size Available: 25kg
Coverage: Approximately 3.2m2 at 25mm thick per 25kg unit
Download the latest datasheets and certificates here;
ARDEX A38 Technical Datasheet (TDS)
ARDEX A38 Health & Safety Datasheet (SDS)
ARDEX A38 Declaration of Performance (DOP)
ARDEX A38 Sustainability Datasheet
ARDEX A38 Environmental Product Declaration (EPD)
THICKNESS
Bonded
15-40mm
Unbonded
50mm+
Floating Domestic
65mm+
Floating Commercial
75mm+
Working time at 20°C
approx. 1 hour
Walkability at 20°C
approx. 3 hours
Consumption per m²/mm
0.31kg
Typical Mix Ratio (Cement:Sand)
1:5
COMPRESSIVE STRENGTH USING 0-8MM GRADED AGGREGATE
After 1 day 25.0 N/mm²
After 7 days 40.0 N/mm²
After 28 days 45.0 N/mm²
TENSILE BENDING STRENGTH (1:5)
After 1 day 4.0 N/mm²
After 7 days 4.5 N/mm²
After 28 days 5.5 N/mm²
BRE SCREED TEST
Normally after 6 hours
MOISTURE TESTING
The Speedy Moisture Tester (Carbide Method) must be used to test moisture. Please consult ARDEX Technical Services for further advice.
British Standard Codes of Practice
BS 8204: Part 1. In situ Floorings – Bases and Screeds.
BS 5385: Part 3. Appendix C. Ceramic Floor Tiling and Mosaics.
BS 8000: Part 9. Code of Practice for cement/sand floor screeds and concrete floor toppings (Workmanship on building sites).
Embodied carbon
(A1-A3 production stage as defined in BS EN 15804)
0.49 kg CO₂ eq/kg