Concrete Raising Foams

Slab-Jack Kings uses advanced polyurethane foams to raise, level and stabilize uneven concrete slabs, ensuring durable, water-resistant support for residential and commercial applications.

Polyurethane Concrete Lifting Foams

Our concrete raising foams and stabilizing foams are specially designed to repair uneven, unsupported, and settled concrete slabs. These foams are injected as a two-part liquid that travels to fill voids and air spaces beneath the concrete, addressing the root cause of settlement. Within 12-15 seconds of injection, the foam expands and lifts the slab.

Our foam is non-erodible, non-decomposable, and water-resistant, ensuring it won’t shrink, sag, or wash away. It also increases the structural sub-base beneath your concrete by 25,000 PSI or more per square foot.

Depending on the concrete raising foam system used, the concrete lifting foam can travel 3-6 feet from the injection point, with void-filling foams spreading 5-12 feet.

PWSF INC. offers various concrete lifting foam systems for different concrete thicknesses, structural types, and weights, ensuring the repair of uneven, settled, and overburdened concrete. Our geo-technical foam systems come with product-tested data sheets that are available upon request.

Concrete Raising Foams/Foam Jacking Material

3.5lb Hydrophobic Concrete Raising Foam

Our 3.5 lb hydrophobic polyurethane foam is specifically designed for residential concrete raising. This foam has a fast reaction time with less spread, providing more control in lifting concrete slabs for driveways, patios, pool decks, walkways, garage approaches, and sidewalks.

Slab-Jack Kings uses a unique concrete raising foam exclusive to our company, ensuring superior results for our clients. It is unrivalled in compressive strength compared to those used by local competitors. Unlike franchise foams used by local competitors, our foam is engineered specifically for our climate and soil characteristics. It permanently adheres to the slab and adjacent concrete, significantly reducing surface hairline cracking and minimizing tripping points at gaps and cracks where rebar is not present or is failing.

4lb Concrete Raising Foam

Rocking concrete slabs that are caused by high traffic and heavy loads can lead to traffic hazards on our roads and possible issues in commercial or industrial settings.

These safety issues require resolution, and ultimately led us to create a foam specifically for D.O.T., municipal, industrial, and commercial applications.

This foam is engineered to be stronger for lifting larger slabs and will also stand up to heavy loads and high traffic. It exceeds specifications required by the D.O.T.

Used For:

Manufacturing floors
Loading docks
Highways/Roadways
On/Off ramps
Bridge approaches
Heavy, thick concrete slabs
High and heavy traffic areas

Other Special Purpose Foams

4lb Hydrophobic Concrete Raising Foam

We have foams available to us that allow us to lift submerged concrete slabs and fill voids underneath them (i.e. boat ramps).

5lb Stabilizing Foam

This 5 lb per cubic foot density foam, provides a slower reaction time and further spread. Due to the distance, this foam can travel. It is excellent for under-sealing and stabilizing joints on rocking slabs from slab curl. This polyurethane foam is formulated for stabilization, not lifting; therefore, it does not have a high expansive force.

6lb Single Component Polyurethane Foam

This 6 lb per cubic foot density foam has been developed for infrastructure repair. The increased compressible strength of the foam is suitable for heavy loads and high traffic areas. The foam was formulated per request from D.O.T. engineers for specialty applications.