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BuildRepair Rust Shield

A single-component, cementitious, polymer-modified anti-corrosion coating for exposed reinforcement steel in concrete repairs. BuildRepair Rust Shield provides dual-action protection — a passivating barrier plus active corrosion inhibition — to prevent further deterioration of rebar.

Packaging

2 kg box, 10 kg bucket

Coverage

2.0 – 2.5 kg/m² of steel surface (2 coats)

Quality Certified
Technical Support

Features

  • Dual-action: barrier protection plus active corrosion inhibition
  • Single-component — just add water to the dry powder
  • Strongly alkaline environment restores passivity of steel
  • Excellent adhesion to cleaned and prepared steel reinforcement
  • Compatible with all cementitious repair mortars
  • Compliant with EN 1504-7 and IS recommendations

Technical Specifications

ColourGrey
Pot Life30 minutes at 25 °C
Shelf Life12 months in unopened packaging
Water Demand0.30 – 0.35 L per kg of powder
Overcoating TimeMinimum 3 hours at 25 °C
Application Thickness1.0 mm (2 coats of 0.5 mm each)
Bond Strength to Steel> 2.0 MPa
Corrosion Current Reduction> 95% vs. untreated steel

Application Areas

Anti-corrosion treatment of exposed rebar during concrete repairProtection of steel in marine and coastal structuresCorrosion inhibition in bridge decks and flyover columnsTreatment of reinforcement in carbonated concreteProtection of steel in industrial environments with chemical exposure

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