Pramukh™ Strong Rubberized Waterproof Flex Tape Instantly Stops Leaks Sealer Tape Black Color 4 Inch X 5 Feet - FLEXTAPE flex tape, super strong, waterproof, instantly stops the toughest leaks, grips on tight & bonds instantly, so strong it even works under water, triple thick adhesive virtually welds itself to most surfaces, fix pools & spas without even draining them, available in super wide sizes to patch large holes. Use on: PVC, acrylic, metal, steel, copper, aluminum, wood, ceramic, porcelain, tile, glass, rubber, fiberglass, stucco, plaster, stone, dry wall, and so much more.