Seamgrip is an extremely flexible urethane adhesive, sealant and waterproof adhesive. The use of Cotol activator is recommended. In the 5-15% range.Seamgrip is suitable for permanent waterproof repairs of punctures, tears, or seams that are no longer watertight on most outdoor equipment such as camping and sun tents, awnings, tarps, backpacks, footwear, gloves, mats, waterproof clothing, and wetsuits, wristbands, latex collars and much more.