Polyurethane Injection
Inject flexible polyurethane into active cracks or joints to stop water infiltration on damp substrates.
Polyurethane injection uses low-viscosity flexible polyurethane resin in active or moving cracks and joints. Unlike epoxy, it bonds to damp or wet substrates and remains flexible — suited to stopping water infiltration rather than restoring structural strength.
Ideal for below-grade walls, foundations, and active leaking cracks that open and close. Related material standards include ASTM C881 Type I/II variants.
We identify leak paths, install injection ports, and inject until resin travels through the crack network and seals the water source — often while water is still present.
For Florida basements, pits, and below-grade commercial spaces, polyurethane injection is a fast, targeted way to stop active leaks without full excavation.
Key benefits
Triggered by
Active water infiltration or leaking cracks that open and close.
Standards & references
ASTM C881 (Type I/II variants)
Typical structures
- Below-grade walls
- Foundations
- Active leaking cracks
What our work looks like
