PU injection grouting is commonly used to seal cracks in concrete that cause water leakage. The liquid resin penetrates deep into hairline cracks and expands to form a tough, flexible seal. This prevents water seepage and protects concrete from further damage. PU injection is suitable for both commercial and residential waterproofing, offering durable protection against moisture infil... https://shakuraconstruction.sg/services/pu-injection-grouting/