PU injection grouting is the leading modern solution for stopping water leakage without the need for expensive and messy hacking. This technique involves injecting liquid polyurethane resin into cracks in concrete. Upon contact with moisture, the resin expands and hardens into a flexible, waterproof foam that seals the leak at its source. It is ideal for HDB bathrooms, kitchens, and b... https://shakuraconstruction.sg/services/pu-injection-grouting/