"Instant Waterproof can be used on hundreds of applications whether sealing, repairing, protection and is compatible with all surfaces. Instant Waterproof forms a tenacious, elastic waterproof coating that protects against shocks, stone chips and impact, while also reducing vibration and noise. Sandable after curing and paintable. Application Emergency repair of small leaks in roofs. Sealing leaking gutters. Sealing screw and drill holes. Anticorrosion coating of metal components. Protects auto parts against stone chips. Sealing roof screws in corrugated sheets. Protecting and sealing parts of caravan, mobile home, trailer,?. Protecting parts of boats against splashing (sea) water. "