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Renderoc HB Concrete Reinstatement Mortar 20kg

Fosroc Renderoc HB

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Renderoc HB is a lightweight, high build concrete repair mortar for patching small sections in concrete up to 25 MPa. It can be applied to vertical concrete patches 10mm to 80mm deep.

Typical Applications

  • Specifically designed for vertical and overhead high-build applications.
  • Used where medium strength, as well as exceptional chloride and carbon dioxide resistance, is required


  • Lightweight formulation enabling extra high-build and thereby saving time and expense of multiple applications
  • Reduces the need for formwork
  • Can be applied by the wet spray process for fast, exceptionally high-build repairs with enhanced strength
  • Extremely low permeability provides maximum protection against carbon dioxide and chlorides
  • Excellent bond to the concrete substrates
  • Shrinkage compensated
  • Pre-bagged to overcome site-batched variations - only the site addition of clean water required
  • Contains no chloride admixtures

Key Properties

  • 28 day Strength : 28MPa
  • Application : Trowel, Wet Spray
  • Compatible concrete strength : up to 25MPa
  • Suitable for use with Galvashield anodes? : No
  • Trowel Build / Depth : 10mm to 80mm vertical