Our products
Our Brands

FOSROC Renderoc HB40 Plus

High Performance Structural Concrete Repair Mortar

Fosroc Renderoc HB40 Plus is a high-build, high-resistivity, shrinkage-compensated repair mortar. It is professionally formulated to conform to EN1504-3 Class R3 standards, making it the premier choice for structural concrete restoration and reinstatement.

Primary Applications

Designed for the reinstatement of concrete where low permeability, high compressive strength, and high resistivity are critical. The lightweight, high-build nature of Renderoc HB40 Plus makes it specifically suited for challenging vertical and overhead concrete repair projects.

  • Achieves 50 MPa compressive strength at 28 days.
  • For higher compressive strength requirements, consider Renderoc HB70 Plus.
  • Note: If Galvashield anodes are being utilized, standard Renderoc HB40 is recommended.

Key Advantages

  • Versatile Compatibility: Suited for concrete strengths ranging from 25 to 50 MPa.
  • Structural Integrity: High strength and shrinkage compensated for long-term dimensional stability.
  • Extreme Durability: Abrasion resistant and low permeability against water, CO2, and chloride ions.
  • Efficient Application: High-build formulation allows for fewer applications; compatible with wet-spray processes.
  • User Friendly: Excellent bond to SSD concrete substrates; typically requires no separate primer.
  • Eco-Conscious: Sustainable formulation using supplementary cementitious materials for a lower carbon footprint.

Technical Downloads

Technical Data Sheet (PDS)
Safety Data Sheet (SDS)
Spec Clause Details

Technical data and compliance information sourced from Fosroc International.