PU injection grouting is a proven waterproofing technique used to repair leaking concrete structures without major disruption. The expanding polyurethane resin fills cracks and voids, creating a seamless waterproof seal. Commonly applied in basements, roofs, and water-retaining structures, PU injection grouting prevents recurring leaks and strengthens weakened areas. Timely PU injecti... https://shakuraconstruction.sg/services/pu-injection-grouting/