JGN804 epoxy crack injection resin is an advanced low-viscosity solution for seamless concrete crack repair and structural reinforcement.
Product Introduction
When it comes to concrete crack repair, JGN804 epoxy crack injection resin stands out as a reliable choice.
This two-component modified epoxy adhesive boasts ultra-low viscosity, allowing it to flow into the tiniest fissures—down to 0.1mm wide—without hassle. Forget about high heat or short working times; JGN804 keeps things cool with low heat release and a generous pot life, making the injection process straightforward.
Primarily used for repairing concrete cracks between 0.1mm and 1.5mm, as well as addressing internal issues like honeycombs and voids, it's a go-to for professionals. In ballastless track systems, it shines with non-pressure injection or low-pressure grouting methods. Plus, its solvent-free composition means no shrinkage during hardening, preserving the integrity of your repairs.
What really impresses is its resilience: strong against aging, acids, alkalis, and water, while delivering toughness and impact resistance post-cure. If you're seeking a epoxy resin for cracks that combines ease of use with top-tier performance, JGN804 fits the bill perfectly.
Product Parameters
JGN804 epoxy crack injection resin adheres to Category I Grade A Adhesive standards per GB50278-2011 Technical Code for Safety Appraisal of Engineering Structural Strengthening Materials. Key performance metrics include:
Performance item | Performance requirements | |
| Colloidal Performance | Tensile strength (MPa) | ≥25 |
| Tensile elastic modulus (MPa) | ≥1.50×103 | |
| Elongation (%) | ≥1.7 | |
| Flexural strength (MPa) | ≥30, and it cannot be cracked. | |
| Compressive strength (MPa) | ≥50 | |
| Unconstrained linear shrinkage rate (%%) | ≤0.3 | |
| Adhesion performance | Standard value of Steel-steel tensile shear strength (MPa） | ≥15 |
| Tensile strength of Steel-steel butt joint (MPa) | ≥20 | |
| Tensile bonding strength of steel-to-dry concrete (MPa) | ≥2.5, and it is a cohesive failure of concrete | |
| Tensile bonding strength of steel-to-wet concrete (MPa) | ≥1.8, and it is a cohesive failure of concrete |
Product Usage
JGN804 epoxy crack injection resin is engineered for versatile concrete crack repair, targeting cracks from 0.1mm to 1.5mm and internal defects such as honeycombs or voids. It's particularly effective in structural concrete repair for ballastless tracks using non-pressure injection or low-pressure grouting techniques.
The low-viscosity formula enhances penetration, making it suitable for micro-crack repair in challenging environments. Its anti-aging properties and resistance to acids, alkalis, and water provide long-term protection, while the no-shrink, solvent-free curing ensures stable, durable bonds. Post-cure, it offers exceptional toughness and impact resistance, ideal for high-stress areas.
For best results, pair with supporting tools like injectors for precise application in concrete sealant injection projects.
Packaging and Storage:
Component A: 9kg/drum
Component B: 3kg/drum
Shelf Life: 12 months in proper storage conditions
Product Documentation
English-JGN804 Crack Injection Resin
JGN804 Epoxy Crack Injection Resin: Low-Viscosity Solution for Crack Repair and Structural Strengthening
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Our products have undergone rigorous testing at our national testing laboratory (CABR testing center co., ltd). Renowned Fortune Global 500 firms such as China Railway Group Limited, China Communications Construction Company Limited, and Sinohydro are among our esteemed clients.
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