PU injection grouting is Singapore’s go-to method for targeted leak repair without demolition. High-performance polyurethane grout fills and seals hairline cracks, construction joints, and porous areas in concrete structures. It cures into a tough, elastic foam that withstands water pressure and movement—great for ongoing seepage in toilets, balconies, lift pits, and external walls. N... https://shakuraconstruction.sg/services/pu-injection-grouting/