Dr. Fixit PU Foam Injection — Polyurethane Foam Injection Grout for Active Water Leakage Stopping (5.5 kg)

Not every crack in a concrete structure needs a structural epoxy repair. Some cracks are actively leaking — water is flowing through them under hydrostatic pressure, and the first requirement is not bond strength but watertightness. Injecting an epoxy system into an actively leaking crack doesn't work — the flowing water prevents proper adhesion and curing. What an active leak needs is a material that reacts with water, expands to fill the crack volume, and stops the flow immediately on contact.

Dr. Fixit PU Foam Injection from Dr. Fixit Waterproofing Solutions is a polyurethane foam injection grout engineered specifically for active water leakage stopping in concrete structures. When injected into a crack or void that is actively carrying water, the PU system reacts on contact with moisture — expanding rapidly to fill the crack geometry, displace the water, and form a closed-cell foam that seals the leakage path completely. The expansion fills irregular crack geometries, reaches corners and voids that a non-reactive system cannot access, and sets quickly enough to stop active flow rather than being washed out by it.

The application range covers active leaks in basement walls and floors, tunnels, underground structures, water retaining structures, sewage treatment facilities, and any below-grade concrete element where hydrostatic pressure is driving water through cracks, construction joints or tie-rod holes. It is equally effective for filling voids behind concrete linings and in annular spaces where water ingress needs to be stopped before a final structural or waterproofing treatment is applied.

For waterproofing contractors and civil engineers dealing with active water leakage situations where standard injection systems or surface-applied waterproofing cannot stop the flow — Dr. Fixit PU Foam Injection delivers the reactive polyurethane injection performance that active leakage demands.

A construction chemical leakage solution from Dr. Fixit that works with water rather than against it — PU Foam Injection is the specification for active crack leakage and void filling where stopping the flow is the first and most critical requirement.