•High strength to weight ratio. Unlike mudjacking techniques that pump mortar-based material beneath settled concrete, Polyurethane foam imposes very little additional weight on the soil. It’s a much smarter slab-raising strategy in areas where soils are easily compressed or have poor load-bearing characteristics.

•Superior lifting capability. Polyurethane foam has almost unlimited lifting capability.

•Fast set up and cure. Following application beneath a settled slab or other concrete element, Polyurethane foam expands immediately to many times its liquid volume to create powerful lifting force. In a matter of minutes the foam begins to harden, typically reaching around 90% of its final strength and rigidity in under 20 minutes. These fast set up and cure characteristics minimize down time, completing the repair so that the concrete can become fully functional again.

•Excellent dimensional stability. Polyurethane foam hardens and cures to a stiff, strong rigid foam material that will not absorb water or alter in dimension over time. Once cured, Polyurethane foam is totally inert as a material. It does not leech harmful chemicals into the soil.

•Soil strengthening capability. Once injected, Polyurethane foam does more than expand upward against the sunken concrete. It also moves downward, expanding into loose soil areas that can benefit from the foam’s consolidating action. Other geotechnical applications of Polyurethane foam include soil stabilization, erosion control and pre-construction soil treatment to improve stability and load-bearing values.