ARDEX WPM 155 Rapid Plus | WPD Group

Professional Engineered Undertile Membrane

  • Express Dry Time - Tile bathrooms in 4 hours
  • Crack Isolation protection
  • Internal and External Use

Water-based polyurethane-acrylic hybrid waterproofing membrane developed for high performance undertile waterproofing.

  • Express dry time with bathroom tiling possible in just 4 hours, with no risk to corners and junctions
  • Crack Isolation protection over shrinkage, hairline and other non-structural cracks
  • Tough flexible film
  • Meets Green Building Council of Australia Greenstar requirements IEQ-13, IEQ-11
  • Can be tiled over – good adhesion with ARDEX tile adhesives
  • Excellent adhesion to a wide range of substrates
  • Fast drying
  • STB Tape eliminates need for bond breaker
  • Class III Membrane, as per AS/NZS 4858 Wet Area Membranes


  • A 5.3kg unit (4 Litres) will cover approximately 4.6m2.
  • A 20kg unit (15 Litres) will cover approximately 17.5m2.

Drying Time:

  • 4 hours (at 23°C)

Pack Size:

  • 20kg (approx. 15L)


WPM 155 Rapid Plus PDS

WPM 155 Rapid Plus SDS

WPM 155 Rapid Plus Spec Sheet