Water is one of the biggest challenges in concrete lifting and soil stabilization. Whether it’s a sunken pool deck, a driveway in a flood-prone area, or a commercial slab near a water table, moisture in the soil can complicate the lifting process—and lead to callbacks if the wrong material is used. That’s where hydrophobic polyurethane foam comes in. For contractors, it’s one of the most reliable tools in the field when moisture is present.

Hydrophobic foam is a specially formulated polyurethane foam designed to perform even in the presence of water. Unlike standard foams, which can lose strength or wash out when saturated, hydrophobic foam is water-resistant and moisture-stable.
Once injected, it expands, fills voids, and cures into a dense, stable material that doesn’t break down when exposed to water.
Most soil movement occurs due to water.
In wet environments, standard polyurethane foams may not bond or expand consistently. That’s why choosing the right formulation is critical for contractors working in high-moisture conditions.

Hydrophobic foam isn’t just a specialty product—it’s a must-have when working around water. Here’s why contractors trust it:
The foam maintains its integrity even in saturated soil conditions, providing a dependable lift.
Because it doesn’t absorb water, it prevents future degradation that could lead to callbacks.
From pool decks to highways near drainage systems, hydrophobic foam is effective in a wide range of moisture-prone applications.
Contractors don’t have to wait for soils to dry completely—allowing jobs to move forward and projects to stay on schedule.
Hydrophobic foam is particularly effective in these applications:
If water is part of the problem, hydrophobic foam should be part of the solution.
At PolyPier, we supply a range of hydrophobic polyurethane foams designed explicitly for contractors working in challenging soil conditions. Whether you’re stabilizing saturated soil or lifting slabs in damp environments, our formulations are engineered to give consistent, lasting results.
If you’re a contractor looking for a reliable concrete lifting solution for high-moisture areas, PolyPier’s hydrophobic foam is the answer.
Contact us today to learn more about our foam systems—or to request training and support for your crew.