PU injection grouting is commonly used in construction repair and waterproofing projects. By injecting polyurethane under controlled pressure, technicians seal fine cracks and voids that traditional methods may miss. PU injection grouting not only stops leaks but also improves durability, making it suitable for underground structures, lift pits, and areas exposed to constant moisture. https://shakuraconstruction.sg/services/pu-injection-grouting/