Crack Sealing Process: Surface Preparation: The crack is thoroughly cleaned to ensure strong adhesion and optimal performance of sealing materials. Epoxy and Port Installation: Structural epoxy is applied along the length of the crack, and injection ports are installed to allow precise application. Polyurethane Injection: A high-velocity polyurethane resin is injected into the crack, filling all voids and creating a flexible, watertight seal that adapts to structural movement.