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ARDEX X68 11kg flexible non-slump ultra light tile adhesive for walls, floors, pools & wet areas
ARDEX X68 11kg flexible non-slump ultra light tile adhesive for walls, floors, pools & wet areas

ARDEX X 68 Tile Adhesive

A lightweight C2TES1 adhesive for vitrified tiles and porcelain inside, outside, and over heated floors. Over 1 MPa adhesion after immersion and freeze-thaw, with a 90-minute pot life.

Vendor: Ardex
SKU: ARDX68/11
Availability: In Stock
$41.87
$34.35
$41.87
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Flat-rate shipping $17.95 + GST (metro and standard zones). Excludes remote/regional/high-cost postcodes and certain items (DG, oversized, long-length, or bagged products 15 kg+). If your order includes any of these, we will contact you to arrange additional freight charges. Online purchases only.

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Download TDS Download SDS Download TestCert_ VOC Content_Ardex Australia_ARDEX X68.pdf
Description  

ARDEX X 68 is an ultralight, flexible, non-slump wall and floor tile adhesive built around a sand-free, extended-coverage formula. The 11kg bag is designed to be easier to transport, mix and spread while still covering demanding internal and external tiling, including wet areas and swimming pools.

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.

Best for

  • Installers wanting high coverage from a lighter bag
  • Porcelain, fully vitrified and ceramic tiles, mosaics and stable natural stone
  • Internal and external wall and floor tiling
  • Wet areas, swimming pools and compatible waterproofing systems
  • Underfloor heating installations

Why choose ARDEX X 68?

  • Ultralight sand-free formula: reduces bag weight while maintaining practical coverage.
  • Extended coverage: approximately 10.5m² on walls or 7m² on floors from an 11kg bag under ARDEX test conditions.
  • Flexible and non-slump: suited to wall and floor tiling where movement accommodation and tile hold matter.
  • Pool and wet-area suitable: ARDEX lists X 68 for swimming pools and wet-area installations.
  • Extended open time: gives installers a useful working window on larger or more detailed layouts.

Tile and substrate compatibility

Use with porcelain, ceramic, fully vitrified tiles, mosaics and non-moisture-sensitive natural stone. Suitable prepared substrates include concrete, renders, screeds, fibre-cement sheet, plasterboard on walls, compressed fibre-cement sheet on floors, Ceramic Tile Underlay and ARDEX liquid-applied undertile waterproofing membranes. Existing ceramic tiles may be suitable in internal dry areas when correctly prepared.

Important limitations

Do not use with moisture-sensitive natural stone or on unapproved movement-prone substrates. Existing-tile installations and immersed applications require the preparation and system details specified by ARDEX. Follow the current ARDEX technical data sheet and AS 3958 for installation requirements.

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.

Common Questions  

What classification does ARDEX X 68 have?
It is classified C2TES1 to ISO 13007.

Can X 68 be used in swimming pools?
Yes, with the specified system and mix. Tiling over existing tiles is not recommended in immersed areas.

How thick can it be applied?
Use a 3mm to 10mm adhesive bed.

How long is the pot life?
About 90 minutes at 23°C.

Uses & Benefits  
Lightweight, sand-free polymer-fortified tile adhesive for internal and external walls and floors. Classified C2TES1 to ISO 13007. Suitable for porcelain, ceramic, mosaics and moisture-insensitive natural stone, including pool and underfloor-heating systems. Open time is about 30 minutes, adjustment time about 20 minutes and pot life about 90 minutes at 23°C. An 11kg bag covers about 10.5m² on walls with a 6mm notch or 7m² on floors with a 10mm notch.
How To Apply  
Use on clean, dry substrates prepared in accordance with AS 3958. Allow new concrete at least 4 weeks cure. Mechanically roughen dense or smooth concrete and prime porous substrates with ARDEX Multiprime. Mix an 11kg bag with 5.5L clean water, mix 2 minutes, rest 3 minutes, then remix 2 minutes. For enhanced movement or pool work, use the ARDEX E 90 mix specified in the technical guidance. Apply 3mm to 10mm thick with the correct trowel. Back-butter tiles 400mm or larger and profiled tiles. Do not spot fix. Grout after about 24 hours at 23°C.
Limitations and Safety Info  
Do not apply below 10°C. Do not use over metal. Do not use over bare timber or other shrinkage-prone substrates without an approved underlayment system. Do not use for moisture-sensitive natural stone. Do not tile over existing ceramic tile in swimming pools or other immersed work. Ceramic Tile Underlay systems require tile edge length of at least 100mm. Keep floor deflection within ARDEX limits.
Suitable Substrates  
  • Concrete, cement renders and screeds.
  • Fibre-cement sheet and plasterboard on walls.
  • Compressed fibre-cement sheet on floors.
  • ARDEX liquid-applied undertile waterproofing membranes.
  • Prepared existing ceramic tile in internal dry areas.
  • Ceramic Tile Underlay over suitable timber-sheet floors.

ARDEX X 68 Tile Adhesive Physical Properties

ARDEX X 68 Tile Adhesive Physical Properties
Property Value
Mixing Ratio 5.5 litres water per 11kg powder
Mixing Ratio with E90 2 litres E90 & 4 litres cool clean water
Coverage Walls 10.5m² per 11kg bag (using 6mm notched trowel)
Coverage Floors 7m² per 11kg bag (using 10mm notched trowel)
Open Time 30 mins
Adjustment Time 20 mins
Ready for Grouting 24 hours
Pot Life 90 mins
Sag / Slump None
Underfloor Heating Suitability Yes
Bond Strength ≥ 1.0 MPa
Tensile Adhesion Strength (Water Immersion) ≥ 1.0 MPa
Tensile Adhesion Strength (Heat) ≥ 1.0 MPa
Tensile Adhesion Strength (Freeze Thaw) ≥ 1.0 MPa
Tensile Adhesion Strength (Extended Open Time) ≥ 1.0 MPa
Classification C2 TE S1
Coverage 10.5m² Walls; 7m² Floors

ARDEX X 68 Tile Adhesive - Use Cases

Here are some common examples on where ARDEX X 68 Tile Adhesive used by our customers.

Tiling

Swimming Pool Tiling

Fixing tiles in internal or external swimming pools and other continuously immersed applications.

Delivers high bond strength and flexibility under constant water exposure, ensuring durable adhesion in immersed environments.

  • Water Immersion: ≥1.0 MPa
  • Classification: C2 TE S1
  • Internal and external use
  • Grouting Time: 24 hours

Tiling

Large Format Wall Tiling

Installing large or heavy format tiles vertically, requiring precise placement and no vertical slippage during curing.

Its non-slump and flexible formulation prevents tiles from dropping, allowing ample adjustment time for accurate alignment on walls.

  • Non-slump property
  • 20 mins adjustment time
  • ≥ 1.0 MPa dry adhesion
  • C2 TE S1 classification

Tiling

External Wet Area Tiling

Fixing tiles in continuously wet or outdoor areas exposed to moisture, temperature changes, or freeze-thaw cycles.

Engineered for harsh conditions, it maintains strong adhesion in water and resists freeze-thaw cycles, ensuring long-term performance.

  • Suitable for swimming pools
  • ≥ 1.0 MPa water immersion
  • ≥ 1.0 MPa freeze-thaw
  • C2 TE S1 classification

Tiling

Extended Coverage Tile Fixing

Tiling large floor or wall areas where material efficiency and lighter handling are prioritised on-site.

Its ultralight, extended coverage formulation reduces material consumption and transport weight, saving time and effort during application.

  • Coverage Walls: 10.5m²/11kg
  • Coverage Floors: 7m²/11kg
  • Light to spread and move
  • Sand-free formula

Tiling

High-coverage tiling projects requiring extended workability

Undertaking extensive tiling installations, such as large commercial floors or complex mosaic designs, where the work requires ample time for spreading adhesive and careful tile placement before setting.

The adhesive's extended pot life and open time provide significant flexibility for managing large or intricate projects, allowing contractors to cover substantial areas and make necessary tile adjustments without premature curing or waste.

  • Pot life: 90 mins
  • Extended open time: 30 mins
  • Adjustment time: 20 mins
  • Low VOC content (meets Green Star requirements)

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