T Rex Tape Waterproof Tape is a strong tape that works underwater, seals and repairs leaks. It provides tough waterproof adhesion under wet and dry conditions. Built with R-Flex Technology, T-Rex Waterproof Tape can stretch up to 700% of its original length. It is strong enough to be used for general purpose indoor or outdoor fixes that require a waterproof seal. You can repair a rip in an above-ground pool or temporarily stop a leak in a water pipe. Alternatively, apply it underwater and push it into cracks and rough, dirty surfaces. The tape is formulated to withstand extreme temperatures from -70°F to 200°F. Its UV-resistant formulation won't break down under harsh sunlight. The tape features a hyper-aggressive adhesive that provides a high level of holding power on wet surfaces to stop active leaks. The durable backing adds to its strength. T-REX Waterproof Tape is flexible, ferociously strong and waterproof like no other.