Super Waterproof Tape Composition and sizes: aluminum foil base surface with butyl rubber. Available sizes are 5 cm x 5 m and 10 cm x 5 m, thickness 1 mm. The butyl rubber tape is very sticky and suitable for repairing leaks. It is easy and convenient to use, helping save time and money. and adhesion: made of polymer synthetic butyl rubber with strong adhesion. Forms an instant seal against water, air, or dust, and remains permanently soft. Suitable for various surfaces and ideal for filling gaps and sealing joints. Temperature resistance and durability: designed for outdoor repairs that require lasting adhesion. Withstands up to 120 degrees and maintains viscosity at low temperatures of 40 degrees. Easy application steps: Remove dirt and dust to ensure a good adhesive surface. Measure and cut the tape, then align it. Remove the adhesion protector film. Apply even pressure to the tape; use a roller if needed. Use scenarios: Patch roof leaks and seal punctures on metal or other outdoor surfaces. Seal gaps and joints around windows, doors, vents, and other exterior penetrations to stop drafts and water intrusion. Temporary weatherproofing and sealing on gutters, pipes, caravans, boats, and other outdoor equipment.