Chemical Grout

OBIC polyurethane grout stops even the toughest leaks

The OBIC family of acrylic, polyurethane, hydrophilic and hydrophobic injection grouts are utilized to stop ground water infiltration prior to installation of the OBIC lining system. Depending on the type of structure and nature of the infiltration, the appropriate grout system is utilized. Some grouts expand in the presence of water while others form a seal to prevent infiltration which may occur during a rain event.

Stop inflow and infiltration issues

OBIC offers a complete line of polyurethane grout materials for stopping leaks that occur in water and wastewater structures.  Most manhole rehabilitation projects involve brick and concrete structures that have cracks, missing or deteriorated gaskets, pipe protrusions or other pathways allowing groundwater to enter.

OBIC products are designed to stop sewer system inflow and infiltration issues, but they will not adhere to running water. Installers must stop any active groundwater infiltration until the OBIC system is applied.  The most common material used by OBIC installers for leak stopping is polyurethane chemical grout.

Customized solutions for water or wastewater structure rehabilitation project

Choosing the correct repair material to match the leaking condition is critical for a successful result. That is why the OBIC product line includes both pumped and hand injected polyurethane grouts. All certified OBIC installers are thoroughly trained on the proper grouting systems for stopping leaks in even the most challenging water or wastewater rehabilitation project.

  • Hydrophilic polyurethane grout seeks out water, is absorbed into cracks and pores of the concrete or masonry and has a tenacious bond to wet concrete. It is used to stop leaks via crack or joint injection.
  • Hydrophobic grout repels water and its reaction is not affected by the presence of water. Hydrophobics are not well suited for crack injection, but are excellent for curtain grouting, sealing gushing leaks, compression sealing, void filling and soil stabilization.

Grouts manufactured in the USA and available for purchase

Backed by 40-years of grout manufacturing experience, OBIC’s grout materials are formulated to maximize performance for the particular application of drinking water, wastewater, stormwater or industrial use.

OBIC grouts do not require professional installation and are available for purchase to anyone looking to stop fast leaks, slow leaks and everything in between. Zero experience is required, and after receiving an installation how-to sheet, anyone can successfully install OBIC grouts.