PU injection grouting is an effective waterproofing technique used to stop active water leakage in concrete structures. This method involves injecting polyurethane resin into cracks, joints, and voids where water seepage occurs. When the resin reacts with moisture, it expands and forms a flexible, watertight seal. PU injection grouting is ideal for basements, roofs, tunnels, and retai... https://shakuraconstruction.sg/services/pu-injection-grouting/