For the repair of typical wet and leaking cracks that pose no structural risk to the foundation. Repairs up to 20 feet of concrete cracks in poured foundation walls. This kit comes with all the components necessary to complete the task, including Premium Polyurethane Foam. When Polyurethane Foam reacts with water, it expands up to 20-30 times its original size. This expansion seals out water and creates a dry, safe environment. All repairs are done from inside the basement. No need for...