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Fosroc Renderoc HB70 High-Strength Concrete Repair Mortar

High-Performance Structural Concrete Repair

Fosroc Renderoc HB70 is a premium, high-strength alkaline mortar specifically engineered for localized patch repairs and large-scale reinstatement of reinforced concrete. It provides superior protection for embedded steel and is designed for environments requiring high compressive strength and exceptional abrasion resistance.

Versatile and Protective Engineering

Renderoc HB70 is highly resistant to chlorides and carbon dioxide, making it the ideal choice for aggressive coastal or industrial environments. It is fully compatible with Galvashield anode protection and Cathodic Protection systems. For projects requiring compatibility with lower-strength concrete, consider Renderoc HB25 or HB40.

Key Benefits and Specifications

  • High Compressive Strength: Optimized for host concrete >45MPa to ensure long-term structural integrity.
  • Extreme Durability: Abrasion-resistant finish suitable for heavy industrial use and high-traffic areas.
  • Dimensional Stability: Shrinkage compensated to prevent cracking and ensure a permanent, secure bond.
  • Low Permeability: Creates a dense barrier against water, CO2, and chloride ion ingress.
  • Application Efficiency: Can be wet-sprayed or hand-applied for high-build, rapid structural repairs.
  • Potable Water Safe: Certified to AS/NZS4020:2005 standards for drinking water applications.

Technical Documentation

Source: Fosroc Australia Technical Data Sheet