Tjikko Leaklock Aluminium single-sided self-adhesive butyl rubber tape is an exclusive laminate of reflective aluminium foil, rugged, cross-linked polymer films, and a thick layer of butyl rubber. The butyl compound adheres to most surfaces and seals around most punctures, forming a protective waterproof barrier. A high-quality release liner is applied to protect the adhesive surface until installation. Butyl Tape is a highly tacky, self-fusing butyl rubber mastic, ideal for making water and humidity resistant seals. LeakLock Tape is a high tack sealant with excellent adhesion to metal, other roofing and other insulating materials. It maintains its tack and flexibility to a wide range of temperatures. It gives a weatherproof seal with excellent resistance to environmental factors such as water, condensation, dust, UV and sunlight over a range of temperatures. Tape is Made of high-quality material, it is made for long time use. Once applied to the target object, the repair tape is tightly adhered to the surface, providing a mess-free and airtight sealing for the roof, gutter, RV, window, boat sealing, and EPDM rubber roof patching. Tape is extremely sticky, work in small amounts at a time. You can overlap the tape on itself if you need to cover larger areas. Start at the lowest sloped point and work up. Tape can be coated or caulked over. Adhesion increases over time. Roughen/Sand plastic surfaces before applying Tape. Suitable for: Roof leaks, window sealing, gutters, downspouts, boats, personal watercraft, canoes, outdoor equipment, mobile homes, RV’S & campers, PVC & plumbing pipes, sprinkler systems, doors, walls, seams, vents, air ducts, HVAC systems, DIY projects, etc. sealing and joining materials such as glass, steel, polycarbonate, wood, Aluminium, PVC, industrial roofing, pipes, cable, refrigeration and many other domestic applications. Before attaching the tape, keep the target surface clean, dry and oil-free.