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BuildBond EP Primer

A two-component, solvent-free epoxy bonding agent and primer for ensuring monolithic bond between old concrete substrate and new repair material. BuildBond EP Primer penetrates into the pore structure of concrete and provides a high-tack bonding bridge.

Packaging

1 kg kit, 5 kg kit, 10 kg kit

Coverage

0.3 – 0.5 kg/m² depending on surface texture

Quality Certified
Technical Support

Features

  • 100% solids, solvent-free epoxy system
  • Exceptional adhesion — exceeds substrate tensile strength
  • Penetrates into the concrete pore structure
  • Suitable as a bonding primer for cementitious and epoxy repairs
  • Moisture-tolerant — can be applied on damp (not wet) surfaces
  • Colour-coded components for easy mix verification

Technical Specifications

ColourComponent A: Grey, Component B: Yellow → Mixed: Green
Pot Life40 minutes at 25 °C
Mixing RatioComponent A : B = 2 : 1 (by weight)
Overcoating Time2 – 6 hours at 25 °C (must be tacky)
Tensile Strength> 20 MPa
Service Temperature-30 °C to +60 °C
Compressive Strength (7 days)> 60 MPa
Bond Strength (Concrete to Concrete)> 3.0 MPa (concrete failure)

Application Areas

Bonding layer between old and new concretePrimer for epoxy mortar and polymer-modified repair mortarsBonding of steel plates to concrete (in combination with adhesives)Seal coat for concrete before waterproofing membranesPriming of prepared concrete surfaces before overlays

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