Aquaseal Urethane Repair Adhesive repairs and reinforces wetsuits, spray skirts, neoprene, nylon and rubber. Aquaseal is a must have for all watersports. This urethane adhesive is clear, flexible, waterproof, and tough. Aquaseal is a great option for all your water sports repairs. Use Cotol to reduce dry time from 24 hours to 2 hours.