Ardex A70 Gypflow 25Kg

£17.90£690.00 exl. VAT

Per Unit


• Walkable in as little as 6 hours
• Ready to receive floorcoverings in as little as 14 days
• Pre-blended for consistency and convenience – just add water
• Pump or hand apply
• Excellent flow properties
• Can be used with underfloor heating systems

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Ardex A70 Gypflow 25Kg is a quick drying, flowable Calcium Sulphate screed that is specially formulated to receive floorcoverings in as little as 14 days – twice as fast as standard Calcium Sulphate screeds. Ardex A70 Gypflow 25Kg is pre-blended and only requires the addition of water.

ARDEX A 70 is used to produce unbonded and floating screeds for internal locations. It can also be used for repairs to existing calcium sulphate screeds. It is ideal for situations where early foot traffic and rapid hardening is required. ARDEX A 70 is suitable for use over underfloor heating systems. ARDEX A 70 must only be used on floors with a functioning damp proof system.
ARDEX A 70 is not suitable for use in locations with prolonged exposure to moisture.


A 25kg bag of ARDEX A 70 will cover approximately 0.4m2 at 35mm thickness.

ARDEX A 70 will typically be walkable in as little as 6 hours at 20°C. Note that lower temperatures will slow the rate of hardening and higher temperatures will accelerate it.

ARDEX A 70 is dry enough to receive floor coverings when a moisture content of ≤ 2% is measured. At 20°C and under good drying conditions this is typically after 14 days.
Application over under floor heating systems: When the ARDEX A 70 screed has been laid on a hot water floor system, 3 days should be allowed to elapse before heating the water up to a temperature of 20°C; this should then be maintained for a further 3 days. The maximum floor temperature should then be used and maintained for a further 4 days. Throughout this time,
draughts across the screed must be avoided. The floor should then be allowed to cool down to room temperature (above 15°C) before laying floorcoverings.
Once hardened, ARDEX A 70 will need sanding to remove any loose materials before receiving further treatment. It is recommended that the surface be sanded 48 hours after hardening and inside 7 days.

Additional information


25Kg Bag, Pallet of 40 x 25Kg



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