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Renderoc HB70 20kg
Renderoc HB70 20kg
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Fosroc Renderoc HB70

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Renderoc HB70 is a high build repair mortar for localised repair of reinforced concrete > 45MPa. Meets the requirements of EN1504-3 Class R4. 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, and required strength >45 MPa


  • Compatible with concrete strength > 45MPa
  • High strength - suitable for structural repairs
  • Abrasion resistant - suitable for aggressive
  • environments
  • Shrinkage compensated - provides long termdimensional stability
  • Low permeability to potentially damaging water, CO2and chloride ions
  • Suitable for use with Galvashield anodes
  • Can be applied using wet-spray process - providingfaster 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 : 70 MPa
  • Application : Trowel, Wet Spray
  • Certifications/conforms to : AS4020 - Potable water EN1504-3 class R4
  • Compatible concrete strength : >45MPa
  • Suitable for use with Galvashield anodes? : Yes
  • Trowel Build / Depth : 5mm to 40mm vertical