This medium viscosity sealant also works as an aggressive adhesive which forms a tough, elastic waterproof seal. It glues permanently to fabrics like neoprene, hypalon, vinyl, cordura and heavier leathers. As powerful as the familiar silicone based sealants but drys somewhat firmer. Can also be used to glue motorcycle body panels, luggage, tents, boots, etc... Dries overnight. (Urethane base.) 1 oz. tube.