Aquaseal is a unique urethane rubber compound which provides superior permanent adhesion, wear resistance, flexibility and waterproofing. Even holes the size of a quarter can be repaired without patches or shrinkage. Aquaseal cures to a flexible rubber product. One application provides a permanent and flexible repair. Recommended for and supplied with dry suit seal replacement kits. Cure time: 10-14 hours. Prepare area needing repair with Cotol 240™ and/or mix Cotol with Aquaseal for full strength repairs in just two hours. Kit contains a 3/4 oz. tube of Aquaseal and 1/2-fl. oz. of Cotol 240.