This method, also called polyurethane grouting, seals dynamic cracks and stops high-volume water ingress in structures like dams, manholes, and pipelines. The resin's short curing time and ability to form a flexible, closed-cell foam ensure a resilient seal that withstands vibration and temperature changes. Benefits include low viscosity for tiny cracks, no shrinkage, eco-friendly opt... https://shakuraconstruction.sg/pu-injection-grouting-singapore/