How It Works
Polyurethane Concrete Raising uses a foam material that is injected under the slab. When the components of this material are mixed, a reaction causes the material to expand. This expanded foam fills any voids beneath the slab and raises concrete. This material will never lose density, is permanent and weighs only about 2 lbs. per cubic foot. Drill. Pump. Patch.
Drill through the slab
Injection holes are strategically drilled around the areas where the concrete is sunken and requires lifting
PUMP IN THE POLYFOAM
Once everything is prepped and the hose and materials are in place, the polyurethane foam is injected through the holes which fills the space underneath the concrete slab, using the concrete slab itself to drive the foam into the crevices, thereby lifting the concrete back to its original, correct level.
PATCH WITH CEMENT
Upon completion of leveling the concrete, the injection hole(s) are filled discretely with new cement, allowing you to use your surface immediately.
We Use the Best Foam
There are many reasons why HMI polyurethane foam material is different from the rest, but one of the main reasons is that HMI poly is made from over 40% recycled materials. That’s pretty impressive considering there is absolutely no other poly material on the market that offers this type of reduced carbon footprint!
Available in 2 lb. (RR201), 4 lb. (RR401), 4 lb. hydrophobic (RR401G), 5 lb. (RR501), and 6 lb. (RR601), HMI has developed this revolutionary foam that is setting new standards in polyurethane foam quality. ASTM tested this recycled material as the best foam available for raising settled concrete. Each foam is specifically designed for applications like lifting, high density lifting, stabilization and undersealing. For Technical Data or MSDS information please contact HMI at 800-626-2464.
Benefits
Recycled foam offers these benefits:
Fast tack free time
High comprehensive strength lift
No concrete adhesion
Fast and aggressive expansion for lifting concrete
Delayed cure time for slab manipulation assuring a perfect lift
HMI’s polyurethane is specifically engineered for raising, leveling, and stabilizing concrete. The patented materials (U.S. Provisional Patent Application No. 61/583.295) are made from recycled components, making it the “greenest” polyurethane foam on the market.
