Professional PU injection grouting is a proven solution for resolving persistent leakage problems in concrete surfaces. It works by injecting polyurethane resin into leaking areas, where it expands and seals cracks completely. PU injection grouting is suitable for underground structures, basements, roofs, and retaining walls. This method restores structural integrity, prevents recurri... https://shakuraconstruction.sg/services/pu-injection-grouting/