Professional PU injection grouting is a proven technique for sealing cracks and controlling water seepage in structures. It is commonly applied in basements, lift pits, underground car parks, and water tanks. The injected PU material expands and bonds strongly to concrete, forming an elastic waterproof barrier. PU injection grouting not only stops leakage but also improves structural ... https://shakuraconstruction.sg/services/pu-injection-grouting/