Gorilla Waterproof Patch and Seal Tape is an extra-strong adhesive tape designed to patch holes, cracks, gaps and tears. Perfect for instantly repairing emergency leaks**, the rubberised, UV-resistant backing can be flexed and stretched before application to adapt to your surfaces. Once the extra-strong tape has bonded, it stays that way. Suitable for hot, cold, wet and dry conditions, Gorilla Waterproof Patch and Seal Tape forms a permanent bond and provides a waterproof barrier*, indoors and out. Great for: roofing, flashing, window frames, gutters, drainage pipes, tarpaulin, caravans and trailers, camping, pond liners, paddling pools and inflatables! *Performance will be dependent on surfaces and conditions. Surfaces must be clean, smooth and non-porous. Water must be pressed out from underneath tape. May not adhere to silicone or water-repellent materials. **Not recommended for leaks in water systems under pressure. Warning: Always read packaging before use.