Polyurethane Foam For Void-Filling Applications

Expanding polyurethane foams are ideal for void-filling applications. They are lightweight and naturally flow and expand into all parts of the void, providing the type of fill and stability that your clients are looking for from a void-filling foam.

Void-Filling Applications of PolyPier Foams

Some of the subsurface voids that PolyPier polyurethane foams can be used to fill are natural; others are less so. Regardless, however, PolyPier has products designed to excel as void-filling foam and provide the requisite stability.

Washouts and Other Subsurface Voids

Whether caused by erosion or other natural or man-made processes, ground voids can pose serious problems, especially if they are under a building or infrastructure such as roads or dams. Once voids have been identified, expanding polyurethane foam can be injected into them. The foam then expands to fill the void and compress the surrounding soil. This stabilizes the area around the void and prevents it from causing further damage.

Abandoned Pipes and Tanks

Abandoned pipes and underground tanks must often be filled, if not removed, to prevent them from eventually collapsing. Because of its ease of injection and ability to flow and expand to fill the area, polyurethane foams are ideal for this application.

PolyPier Formulas Ideal As Void-Filling Foam

Two of the PolyPier foams best suited to void-filling applications are P2-070 and P2-039. Both have slow reactivity times, allowing better flow into the void to help the foam reach every part of it.

Both are exceptional at dealing with not only subsurface voids but also with pipe and tank abandonment.

Interested In Void-Filling Foams or Other PolyPier Products?

For more information on any of PolyPier’s products, call us or fill out the form on our contact us page. If you are interested in becoming a PolyPier partner contractor, click here.