T-Rex waterproof tape is made with R-Flex technology and provides tough, waterproof adhesion in wet or dry conditions. Use T-Rex Waterproof Tape for a variety of repair and fixations for indoor and outdoor applications. DURABLE & FLEXIBLE You can even apply this tape underwater and slide it into cracks and rough, dirty surfaces. T-Rex waterproof tape is designed to withstand extreme temperatures from -56.7°C to 93.3°C. It is UV resistant and does not tear off even in strong sunlight. The extra thick butyl-based adhesive of T-Rex waterproof tape allows permanent repairs, even underwater and can stretch up to 700% of its original length. Features and Benefits of T-Rex Waterproof Tape Waterproof backing which has been enhanced with R-Flex technology, longer durability, can be used underwater, UV resistant and adheres best to hard, solid surfaces.