PU injection grouting is commonly used to treat active leaks and hairline cracks in concrete structures. The injected polyurethane expands on contact with water, sealing cracks completely. This method is suitable for basements, parking structures, and underground facilities. Professional PU injection grouting delivers long-term waterproofing, prevents structural deterioration, and ext... https://shakuraconstruction.sg/services/pu-injection-grouting/