Long-lasting - Water-based urethane sealant is unaffected by extreme temperatures and keeps moisture out all year long Fast Acting - Formula cures in just two hours for an application on tent seams that’s quick and easy Waterproof - Provides a water-tight seal that won’t peel or crack over time, keeping adventurers warm and dry Flexible - Dries to a clear sealant that flexes with fabric and stays intact without flaking off All-purpose - Seals nylon, polyester, vinyl, canvas and other outdoor fabrics