PU injection grouting is a highly effective waterproofing solution used to seal cracks in concrete structures. This method involves injecting polyurethane resin into cracks, where it reacts with water and expands to fill gaps completely. PU injection grouting is widely used in basements, tunnels, retaining walls, and water tanks to stop active leaks. It provides long-lasting protectio... https://shakuraconstruction.sg/pu-injection-grouting-singapore/