PU injection grouting is a highly effective method for sealing cracks and stopping water seepage in concrete structures. By injecting expandable polyurethane resin into gaps, PU injection grouting fills voids and creates a strong, waterproof barrier. This technique is widely used for basements, tunnels, ceilings, and walls because it provides fast, durable results. PU injection grouti... https://shakuraconstruction.sg/services/pu-injection-grouting/