Polyurethane Leak Repair
The polyurethane and acrylic products we use to stop leaks can fill underground voids without digging. These low viscosity injection resins and acrylics are long-lasting solutions to leaks in manholes, utility vaults, meter boxes, tunnels, tanks, clarifiers, aeration basins, lift stations, pump stations, catch basins, elevator pits, below-grade walls, equipment pits, lateral connections, mainlines, dams, channels, flumes, swimming pools, concrete basements, and many other areas requiring waterproofing. Some chemical grouts cure to a rigid or flexible foam, while others to a flexible gel.
Arid Restorational Technologies, Inc. offer two major types of leak repair resins: hydrophilic and hydrophobic. Hydrophilic grouts readily mix with water and seek out water to get an excellent “bite” into the pores of wet concrete. This is important when trying to seal a crack in wet concrete. Hydrophilic grouts are used to stop leaks through cracks and joints in underground structures. When cracks or joints open and close with temperature changes, a tight water seal and bond is maintained due to the flexibility of a hydrophilic grout. Hydrophobic grouts are typically used to fill voids and stabilize soils due to their low viscosity, high expansion rate, and ability to set up under wet conditions without diluting. A hydrophobic resin repels water. When injected into loose soil or voids, it expands and replaces any water present. Because rigid hydrophobic material is not affected by fluctuation in the moisture content of soil, it is virtually unaffected by water table. It retains its strength, size, and impermeability under almost all soil conditions.