PU INJECTION
PU injection is an effective crack repair and waterproofing method used to stop water leakage in concrete structures. Polyurethane resin is injected under pressure into cracks, joints, or voids where it expands and forms a flexible waterproof seal. This method is widely used for basements, retaining walls, tunnels, and slabs experiencing active water seepage.
Polyurethane injection grouting provides a fast and reliable solution for sealing structural cracks and preventing further water penetration. The injected PU material reacts with moisture and expands to fill gaps completely, creating a durable waterproof barrier. This technique is commonly used in waterproofing repair works for basements, roofs, foundations, and underground structures. (54 words)