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Renderoc HB40 20kg
Renderoc HB40 20kg
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Fosroc Renderoc HB40

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Renderoc HB40 is a high build repair mortar for localised repair of reinforced concrete up to 45MPa. Meets the requirements of EN1504-3 Class R3. It can be applied to vertical concrete patches up to 40 mm deep. Suitable for use with Galvashield anode protection systems.

Typical Applications

  • Vertical & overhead patch repairs
  • Localised trowel or wet spray application
  • Up to 1m2 repair area
  • Trowel build depth between 10-40mm required
  • Required strength is between 25-40 MPa


  • Compatible with concrete strength in the range 30 to 45MPa
  • Abrasion resistant - suitable for aggressive environments
  • Shrinkage compensated - provides long term dimensional stability
  • Low permeability to potentially damaging water, CO2 and chloride ions
  • Suitable for use with Galvashield anodes
  • Can be applied using wet-spray process - providing faster high build repairs
  • Pre-bagged to overcome site-batched variations - only the site addition of clean water required
  • Complies to AS/NZS4020:2018 - suitable for use in potable water

Key Properties

  • 28 day Strength : 35 MPa
  • Application : Trowel, Wet Spray
  • Certifications/conforms to : AS4020 - Potable water
  • Compatible concrete strength : 30-45MPa
  • Suitable for use with Galvashield anodes? : Yes
  • Trowel Build / Depth : 10mm to 40mm vertical