Superflex Two-Part Undertile Liquid Waterproofing Membrane


A rapid drying, two part waterproofing membrane specially designed for use under tiles.

  • BRANZ Appraisal (No. 472 & No. 473)
  • Advanced acrylic polymers – will not re-emulsify
  • Rapid drying time, normally ready to tile in 16-24 hours
  • Class III two component cementitious membrane that conforms to AS4858:2004
    Wet Area Membrane (Ref: CSIRO Report 3879)
  • Compatible with ARDEX tile adhesives
  • Fibre reinforced – no need for reinforcing mat
  • Low VOC content – meets Green Building Council of Australia Green Star IEQ-13 requirements


  • Substrates:

    • Concrete, renders and screeds
    • Wet area compatible fibre-cement sheet, plywood and plasterboard

  • Location:

    Internal wet areas, balconies and other areas that will be tiled or protected from regular foot traffic. Suitable for permanent immersion

  • Surfaces: Floors, Walls
  • Colours: Liquid – White Powder – Off white
  • Coverage: 40kg unit covers approx 16m2 to 24m2 (2 coats)
  • Pack Size: 20kg liquid / 2 x 10kg powder
  • Drying Times:

    Recoat time: 1-2 hrs
    Ready to tile: 16-24 hrs
    Full cure: 3 days

  • VOC content: 25g/L