Epoxy
A two-part thermosetting resin that cures rigid, with high strength, excellent adhesion to dry concrete and good chemical resistance.
On an actual building
Its rigidity is both the advantage and the limitation. Epoxy injection restores structural continuity across a dormant crack; the same rigidity means it cracks again alongside a crack that is still moving.
What we most often have to correct
That stronger is always better. On a live crack, a flexible resin outperforms a stronger rigid one.
Terms that come up alongside this one
- Injection Grouting
Forcing grout under pressure through installed ports into cracks, voids or honeycombed concrete to fill them and block water paths..
- PU Grouting
Injection of polyurethane resin that reacts with the water it meets, expanding into a foam or flexible gel and sealing the leak path from within..
- Primer
A preparatory coat applied to a substrate to seal it, improve adhesion and provide a compatible surface for the system that follows..
Epoxy — questions we get asked
What does epoxy mean in waterproofing?
A two-part thermosetting resin that cures rigid, with high strength, excellent adhesion to dry concrete and good chemical resistance.
Why does epoxy matter on a real project?
Its rigidity is both the advantage and the limitation. Epoxy injection restores structural continuity across a dormant crack; the same rigidity means it cracks again alongside a crack that is still moving.
What do people commonly get wrong about epoxy?
That stronger is always better. On a live crack, a flexible resin outperforms a stronger rigid one.
Have a building showing this?
If a term on this page describes something you are looking at, a site inspection will tell you how far it has gone and what it needs. It costs nothing.
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