Facing stubborn ceiling or wall leaks? PU injection grouting provides an effective, non-invasive fix in Singapore’s humid climate. The low-viscosity polyurethane resin is pumped into fine cracks or honeycomb concrete, reacting with moisture to expand up to 20–30 times its volume, sealing voids permanently. Perfect for HDB bathroom-to-ceiling seepage, condo slab leaks, roof-to-wall joi... https://shakuraconstruction.sg/services/pu-injection-grouting/