ARDEX RA 56 is a specially formulated very low viscosity two part hybrid polyurethane rapid cure concrete repair material. Its low viscosity offers deep penetration into concrete cracks providing a structural repair. The addition of aggregate makes a quality spall repair product that is open to traffic or floor grinding in less than one hour. The ultra-fast set time of ARDEX RA 56 allows minimum down time in the repaired area.


  • Application Temperature Range:

    1.6°C - 43.3°C

  • Gel Time (@ 24°C):

    2.5 Minutes

  • • Tack-free Time(@23.9C):

    12 Minutes

  • Substrates:


  • Location:

    Permanent internal or external application

  • Colours: Grey
  • Pack Size: 254mL & 627mL Cartridges
  • Packaging:

    266ml & 650ml Cartridges