Fosroc Renderoc Hb40 20kg

Renderoc HB40 is a medium-weight, high-build concrete repair mortar specifically engineered for structural reinstatement of vertical, overhead, and soffit concrete elements. Supplied as a pre-blended dry powder, it only requires the addition of clean water on site to form a high-performance, polymer-modified mortar with excellent handling characteristics, shrinkage control, and long-term durability.

Key Features:

• Compatible with concrete strengths between 30–45 MPa

• High-build formulation – ideal for vertical and overhead repairs

• Shrinkage compensated – ensures dimensional stability and reduces cracking

• Low permeability – protects against chloride ion, water, and CO₂ ingress

• Abrasion resistant – suited to aggressive exposure environments

• Suitable for large-scale reinstatement or small patch repairs

• Compatible with Galvashield XP and cathodic protection systems

• Potable water approved – complies with AS/NZS 4020:2005

• Pre-bagged – eliminates site batching variability and ensures mix consistency

Typical Uses:

• Structural repair of beams, columns, soffits, and overhead concrete elements

• Infrastructure exposed to harsh or aggressive environments

• Applications requiring long-term protection and compatibility with corrosion control systems

Packaging:
20kg bag

Coverage:
Approximately 11 litres per 20kg bag (depending on surface and application thickness)

Compressive Strength:
Typically exceeds 45 MPa at 28 days

Application Method:
Hand applied; can also be wet-spray applied for faster build