To repair these types of cracks we use either a polyurethane or epoxy crack injection system. The process involves a high pressure injection of activated polyurethane or epoxy into the crack using packers and epoxy adhesives. The high pressure application forces the product deep into the whole thickness and width of the crack, ensuring a complete seal.
Crack injection is very useful in areas of immediate water ingress. This is where the water is actively coming through cracks, some leaks can be likened to a running tap. Using polyurethane foams and sealers, the crack injection process stops these leaks dead in their tracks, with a permanent fix completed once the process is finished.