Unlike mudjacking, when polyurethane is injected, it expands underneath the surface of the concrete, permeating all voids to create desired support. Polyurethane is lightweight and will not lose density over time, yet boasts extreme lifting capabilities.
Mudjacking is a heavier burden on the soil and can erode over time. The holes drilled in the concrete to inject polyurethane are nearly invisible, smaller and fewer needed than the traditional mudjacking. Polyjacking is a quicker process than mudjacking. The curing time is just 20 minutes long and will hold shape for upwards of 10 years.