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One Component, Polyurethane Based Joint Sealant


ARDEX RA 040 is a one-component, polyurethane based joint sealant. It has excellent bond strength to most porous and non-porous substrates without the use of a primer. ARDEX RA 040 is non-sag and may be applied on vertical and horizontal surfaces.


  • Typical Uses:

    • Expansion joints with anticipated movement up to +/-25%
    • Joint sealing in pre-fabricated and tilt-up buildings
    • Sealing between window and door frames
    • Sealing moving cracks, not exposed to heavy traffic 

  • Substrates:

    • Excellent primerless adhesion to most substrates.

  • Drying & Curing:

    • 24 hours for 2mm

  • Location:

    • Internal/External

  • Colours:
    • Grey
    • White
  • Elongation:

    • 500%

  • Packaging:

    • 600mL sausage