Flex Seal is a rubberized sealant spray coating that sprays out as a liquid, seeps into cracks and holes and dries to a watertight, flexible coating. It’s the easy way to coat, seal, and stop leaks fast. Flex Seal has many advantageous applications and uses, that when applied correctly, can last for many years. The most common uses for Flex Seal are listed below: Flex Seal Liquid Aerosol Rubber Sealant Coating, 14 oz, Black Common Flex Seal Applications Fix leaky roofs, gutters, and downspouts Repair RV’S, campers, and mobile homes Repair skylights Vent Pipes For roof drip edges and flashings Leaky or broken hose and PVC pipe repairs To seal or repair windowsills For A/C drip pans, portable A/C units, duct work, and chimneys On boats and other personal watercrafts For bird baths, ponds, and fountains Flat, metal, rubberized and granulated roof repairs and leaks Foundations, gravel stops, asphalt shingles, and overlapped seams And, much more! Recommended surfaces Wood Metal Tile Concrete Masonry Fabric Glass Plastic Aluminum Porcelain Dry wall Rubber Cement Some vinyls and so much more! Liquid Rubber Sealant Coating Seals Leaks Fast Rubberized Coating Forms A Watertight Flexible Seal On Leaks Or Use As A Waterproof Coating On Most Surfaces, Aerosol Spray Easy to use; This product is highly durable;