Crack Sealing Adhesive
Structural Adhesives
Epoxy resin adhesives for sealing hairline cracks up to 0.1mm wide
The crack sealing adhesive is a solvent-free, low-viscosity epoxy resin system designed for deep penetration into microcracks in concrete and masonry structures. It is capable of infiltrating cracks narrower than 0.1 mm, making it ideal for restoring the integrity of surfaces affected by fine shrinkage or stress-induced cracking. The adhesive features strong aging resistance, chemical durability (acid, alkali, and salt environments), and negligible shrinkage during curing. Once cured, it offers excellent toughness and impact resistance, with no offensive odor and non-toxic, user-friendly handling.
This structural adhesive is suited for precision crack sealing, ensuring long-term structural stability and protection against further deterioration.
| Property | Standard Requirement | Test Result |
| Tensile strength | ≥25MPa | 35.9MPa |
| Modulus of elasticity in tension | ≥1500MPa | 2500MPa |
| Elongation | ≥1.7% | 1.7% |
| Bending strength | ≥30MPa,and not in fracture damage form | 45.5MPa,and not in fracture damage form |
| Compressive strength | ≥50MPa | 72.3MPa |
| Steel-to-steel tensile shear strength | ≥15MPa | 17.0MPa |
| Steel-to-concrete positive tensile bond strength | ≥2.5MPa,with cohesive failure of concrete | 3.5MPa,with cohesive failure of concrete |
| Temperature | Gelling Time | Curing Start Time | Full Curing Time |
| -5℃~0℃ | 180min | 18h | 240h |
| 0℃~10℃ | 120min | 12h | 216h |
| 10℃~20℃ | 80min | 10h | 192h |
| 20℃ and above | 60min | 8h | 168h |
- Crack repair in concrete structures
- Injection reinforcement for internal concrete defects, such as honeycombing or segregation voids
- Filling hollow areas beneath wall or floor tiles
- Ultra-low viscosity with strong penetration, capable of sealing microcracks as narrow as 0.1 mm
- Formulated with Taiwan Nanya epoxy resin, offering excellent resistance to acids, alkalis, and moisture
- Solvent-free with minimal shrinkage, providing high toughness and outstanding impact resistance after curing
- Transparent, odorless, and non-irritating, making it safe for use even in occupied buildings during application
