Even this hairline foundation crack can be repaired using our low pressure repair method. A liquid polyurethane resin is injected into the concrete wall crack. The polyurethane foams and expands up to 30x and completely fills the crack and stops the leak.	This foundation crack is under the basement window and leaks water. Water enters the crack and leaks into the basement. Brush off loose dirt and debris prior to injection.
Prior to injecting a surface paste is applied over the foundation crack. This surface paste adheres the injection ports and keeps the concrete crack repair material inside the crack until cures. Then begin injecting at the bottom surface injection port.	The spring drive dual cartridge gun injects crack repair materials through a static mixer attached at the end.
Foundation crack injection stops water leaks into a basement. On contact with water the polyurethane resin slowly expands and fills the crack. The polyurethane expands up to 30x and fills the basement wall crack from top to bottom and all the way to the outside. Once complete the crack will not leak.