Foamjection is the injection of expanding polyurethane foam beneath a concrete slab through dime-sized ports to raise, level, and stabilize it — the modern, lightweight alternative to mudjacking.
In depth
Foamjection relies on specialized equipment that stores two liquid components, an A-side (isocyanate) and a B-side (polyol blend), in separate heated tanks. The components travel through separate heated hoses and mix only at the injection port under the slab, where they react into a rigid, closed-cell foam. Pressure gauges at the injector let technicians verify the two sides are blending in the correct ratio for consistent, properly cured foam on every shot.
Because mixing happens at the point of injection, the reaction is precise and the foam expands exactly where support is needed. The approach is fast, clean, and minimally invasive, and it works across residential, commercial, and highway-grade applications.
How Acme applies it. Acme’s technicians are Foamjection-certified, meaning they are trained to diagnose the underlying cause of settlement and match it to the right foam formulation rather than using a single product for every job.
Related terms: Polyurethane Concrete Raising, Deep Foamjection, Injection Port, Two-Component Polymer, Smart Lift System
Frequently asked questions
Is Foamjection the same as polyurethane concrete raising?
Yes. Foamjection is the foam-injection technique behind polyurethane concrete raising; the terms are used interchangeably for lifting and stabilizing slabs with expanding foam.
What size holes does Foamjection require?
Only about 5/8 inch, roughly the size of a dime. After the work is done the ports are removed and the holes are patched with grout, leaving them barely noticeable.