Curtain Grouting

Curtain grouting is a process of pressure injection of our polyurethane resins to stop water leaking through cracks or joints in concrete or masonry. The resin will react with water and expand to form a water tight gasket inside or behind the structure.

The resin will react with water and expand to form a water-tight gasket inside or behind the structure.Curtain grouting is used for manholes,sewer pipes and water pipes,and underground tunnels.

Leak,Crack Sealing

Polyurethane foam can be very effective in sealing leaking cracks in foundation walls and floors, in both residential and commercial applications. The polyurethane foam is injected from the inside, through the concrete wall, to form a permanent waterproof barrier that adheres to the outside of the concrete wall displacing moisture and water. This method of sealing compared to other methods, in most cases, solves the root cause of the problem by addressing the issue on the outside of the wall rather than only sealing the crack on the inside, which over time may allow water to eventually push through again.

Installation is easy with minimum disruption or mess. This process is cost effective, and also adds an insulating value to the wall or floor where foam is added.

This process can be used for

Basement walls and floors

Parking garages

Garage floors

Retaining walls

Commercial buildings