Low Viscosity Epoxy Adhesive (Crack Injection)
Key Features
- Low mixed viscosity (300–700 mPa·s) penetrates 0.1 mm cracks
- 1:1 mix ratio for easy site use
- Restores structural integrity in cracked concrete and FRP
- High tensile (≥30 MPa) and compressive (≥80 MPa) strength
- Low shrinkage ensures full crack wall bonding
This low viscosity two-component epoxy adhesive is formulated for pressure injection into hairline cracks, fine voids, and delaminations in concrete, masonry, and FRP structures. Mixed viscosity at 23°C is 300–700 mPa·s, allowing penetration into cracks as narrow as 0.1 mm under low injection pressure. The 1:1 mix ratio simplifies site use. Cure at room temperature produces a rigid, structural adhesive with tensile strength ≥30 MPa and compressive strength ≥80 MPa, restoring structural continuity to cracked elements. Pot life is 30–60 min at 23°C. Full structural strength in 24–72 hours. Chemical resistance after cure is good. Used for structural repair of cracked concrete beams and columns, delamination injection in FRP bridge decks, void filling in masonry, and fine crack injection in composite laminate repairs. The product has low shrinkage on cure, ensuring crack walls are fully bonded and load paths restored.
Specifications
| Parameter | Value |
|---|---|
| Full Cure | 24–72 h RT |
| Mix Ratio (vol) | 1:1 |
| Pot Life (23°C) | 30–60 min |
| Minimum Crack Width | 0.1 mm |
| Compressive Strength | ≥ 80 MPa |
| Mixed Viscosity (23°C) | 300–700 mPa·s |
| Tensile Strength (cured) | ≥ 30 MPa |
Applications
FAQ
Injection is performed with manual or pneumatic injection packers set into pre-drilled holes along the crack. Start injection at the lowest packer and work upward. Apply pressure at 0.1–0.5 MPa until adhesive appears at the next packer, then seal and move up. For very fine cracks (<0.1 mm), gravity feed or vacuum-assisted injection may be more effective. Ensure the crack is dry and free of dust, oil, and water before injection.
Direct Contact
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