Flex Tape Black Rubberized Repair Tape, 4 in. x 5 ft. features a super strong adhesive with a thick rubberized backing that instantly stops leaks, even underwater. This versatile tape creates a watertight seal to patch, bond, seal, and repair a wide range of surfaces. It is for home repairs and DIY projects, marine and water sports applications, outdoor and camping gear, automotive and mechanical fixes, as well as industrial and farm equipment maintenance. Use it to repair roof leaks, downspouts, boats, kayaks, personal watercraft, outdoor equipment, mobile homes, vents, ducts, and much more, providing a reliable and durable solution for your sealing needs.