Epoxy / Crack Injection
Where PU grouting seals a leak, epoxy injection restores structural strength — used on cracks that aren't actively moving.
What it is
Epoxy injection uses a rigid, high-strength epoxy resin injected into a crack to bond the two sides back together structurally, rather than simply sealing it. Unlike polyurethane, cured epoxy is rigid rather than flexible, which is exactly what makes it suitable for structural repair rather than active leak sealing.
How it works
Ports are installed along the crack, and low-viscosity epoxy resin is injected under pressure so it fully penetrates the crack's depth, not just the visible surface. Once cured, the epoxy forms a bond as strong as, or stronger than, the surrounding concrete.
When it's used
- Structural cracks that are not actively moving or leaking
- Cracks where restoring load-bearing continuity matters, not just watertightness
- Concrete elements that need structural repair before any waterproofing membrane is applied over them
Advantages
- Restores structural integrity, not just a watertight seal
- Full-depth penetration rather than a surface patch
- Long-term, rigid, non-degrading bond once cured
Not sure which system your problem needs?
The right system depends on your specific site condition. Show us the problem and we'll confirm the right approach.
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