Flex Seal is a unique liquid rubber sealant in a convenient aerosol can. It sprays out as a thick liquid that seeps into cracks and holes, creating a waterproof and flexible rubberized coating upon drying. This powerful sealant effectively coats, seals, and protects surfaces, quickly stopping leaks. To use Flex Seal, first read the instructions on the can and ensure you wear appropriate face and eye protection, gloves, and clothing. Before application, surface preparation is crucial; the area must be clean, dry, and free of grease, oil, and dirt. Shake the can well and spray from a distance of 8 to 12 inches, using a smooth, sweeping motion. It is recommended to apply multiple even coats instead of one thick layer, especially in temperatures above 60ºF. Allow Flex Seal to completely fill all cracks and holes. Wait until the sealant is fully cured before testing. If light can still pass through any cracks, additional coats should be applied.

Flex Seal is versatile, making it suitable for a wide range of repairs. It is commonly used to fix leaky roofs, gutters, and downspouts. People often turn to Flex Seal for repairs on RVs, campers, and mobile homes. It can restore skylights and seal vent pipes, making it great for roof drip edges and flashings. The product also works well for repairing leaky or broken hoses and PVC pipes. It is an excellent choice for sealing windowsills, A/C drip pans, and ductwork. Boating enthusiasts appreciate Flex Seal for its ability to protect boats and personal watercraft. Additionally, it is effective for repairs on bird baths, ponds, and fountains. It can also seal flat metal, rubberized, and granulated roofs, along with foundations, gravel stops, asphalt shingles, and overlapped seams. With its strong sealing properties, Flex Seal meets a variety of needs and is a reliable solution for many home and outdoor projects.