PU injection grouting is widely used in waterproofing projects because of its flexibility and durability. Once injected, the PU foam forms an elastic, watertight barrier inside the crack. This allows the structure to move slightly without reopening the leak. PU injection grouting is suitable for both residential and commercial buildings. It is a non-destructive method that fixes leaks... https://shakuraconstruction.sg/services/pu-injection-grouting/