Epoxy Injection Resin for Crack Repair
CAS Number: 25068-38-6
Low-viscosity epoxy injection resin is a two-component structural adhesive system (resin + hardener) designed for pressure injection into hairline cracks (0.05–5 mm) in concrete, masonry, and stone to restore structural integrity. The cured epoxy achieves tensile strength exceeding the concrete substrate, creating a monolithic repair. Formulations are available in standard, fast, and low-temperature cure versions.
Technical Specifications
| appearance | Part A: Clear amber liquid; Part B: Clear liquid |
| pot life at 23°C (min) | 30–60 |
| mix ratio (A:B by weight) | 2:1 |
| tensile strength cured (MPa) | ≥35 |
| viscosity mixed (mPa·s at 25°C) | 200–600 |
Applications
- Structural crack repair in reinforced concrete beams and columns
- Crack injection in bridge decks and superstructures
- Foundation crack sealing and structural bonding
- Parking structure and tunnel crack repair
- Historical masonry and stone structure consolidation
Key Features
- Low viscosity (200–600 mPa·s) penetrates hairline cracks down to 0.05 mm
- Cured strength exceeds concrete substrate for true structural repair
- Multiple cure speed grades: standard, fast, and cold-weather formulations
- ASTM C881 and EN 1504-5 compliant for structural bonding and crack injection
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