ARDEX X 56 is a fast-setting, highly flexible S2 tile adhesive for projects where movement and turnaround time are the main challenges. It is specifically positioned for tiling directly to suitable internal timber, over heated slabs and on early-age concrete, screeds and renders without needing a separate flexibility additive.
Compare tile adhesives: See our complete tile adhesive range from ARDEX, Gripset, Mapei and RLA to compare flexibility, setting speed, wet-area suitability and tile/substrate requirements.
Suitable tile types include ceramic, porcelain, fully vitrified tiles, mosaics and non-moisture-sensitive natural stone. Compatible substrates include concrete, cement render and screeds, aerated concrete, fibre-cement sheet, plasterboard, compressed fibre-cement sheet, existing prepared ceramic tiles, ARDEX undertile waterproofing membranes and approved internal timber systems.
ARDEX X 56 is not recommended for swimming pools or commercial floors subject to heavy traffic. Timber preparation and priming requirements are specific and must be followed. Always work to the current ARDEX technical data sheet and AS 3958.
ARDEX system products: For compatible substrate preparation and finishing, see ARDEX Multiprime and ARDEX FG8 Tile Grout. Always match primers, membranes and grouts to the current ARDEX system specification for the job.
Can ARDEX X56 be used over timber?
Yes. It is suitable for prepared internal sheet timber such as particleboard and plywood. Strip timber floors must be sheeted with fibre-cement before tiling.
How soon can X56 be grouted?
Approximately 4 hours at 23°C and 50% relative humidity. Cooler conditions, higher humidity or dense tiles can extend drying time.
How early can I tile over new concrete or screeds?
Concrete can be tiled after 7 days. Bonded screeds require at least 24 hours and unbonded screeds at least 7 days; cement render requires at least 16 hours. Follow the current TDS for substrate preparation.
Can X56 be used in swimming pools?
No. ARDEX does not recommend X56 for swimming pools.
| Property | Value |
|---|---|
| Classification | C1 E S2 (ISO 13007) |
| Bond Strength | ≥0.5 MPa |
| Tensile Adhesion Strength (Water Immersion) | ≥0.5 MPa |
| Tensile Adhesion Strength (Heat) | ≥0.5 MPa |
| Tensile Adhesion Strength (Freeze Thaw) | ≥0.5 MPa |
| Mixing Ratio | 6.75 L water per 15 kg powder |
| Open Time | Approx. 30 minutes (23°C / 50% RH) |
| Adjustment Time | Approx. 30–45 minutes (23°C / 50% RH) |
| Pot Life | Approx. 45 minutes (23°C / 50% RH) |
| Ready for Grouting | Approx. 4 hours (23°C / 50% RH) |
| Coverage — Walls (6 mm trowel) | Approx. 12–14 m² per 15 kg |
| Coverage — Floors (10 mm trowel) | Approx. 8–10 m² per 15 kg |
| Shelf Life | 12 months |
Here are some common examples on where ARDEX X 56 Tile Adhesive used by our customers.
