This is how the pros repair foundation crack leaks! By doing a concrete crack injection with polyurethane foam. With our most popular kit you will stop water from leaking through 10’ of foundation cracks. The clear, concise and easy to follow instructions and how-to video make this an easy to use basement crack repair kit. The MDI based polyurethane is used on cracks in defective concrete wall cracks. These include foundation walls, retaining walls, sewer manholes, and tunnels. This is a forgiving repair process, especially for DIY and first timers. That is because on contact with water the 100% solids resin foams and expands inside the crack-up to 30x its volume. This is easier to use than epoxy because epoxy can run out of the crack prior to it curing and sealing. It includes two cartridges of expanding Hydra-Stop 300 polyurethane foam that will not shrink after curing. After it foams and expands, the water will not leak through. Two cartridges of Poxy Paste are used to adhere the surface ports and cover the crack prior to injection. That is more materials than other kits. These are the same materials and procedures that our professional customers use to repair basement wall cracks for their clients. This kit also works on the inside corners of a basement. All of the materials and supplies needed are included in this kit. Advantages: Expands up to 30x- Mixers that snap tightly into injection surface ports- Low viscosity Hydra Stop 300 polyurethane gets into hairline cracks- Fast setting surface sealer for reduced repair time- Non-shrinking polyurethane foam expands to stop water- More materials than other kits- Features: 2 Cartridges Hydra Stop 300 polyurethane foam- 2 cartridges Poxy Paste surface port and crack seal adhesive- Caulk gun- Injection ports- Inside corner injection ports- How to video and written instructions