【Wide Applications】Aluminum tape is suitable for sealing and patching HVAC duct system, duct pipe insulation, sealing aluminum, sealing hot and cold air ducts, dryer vents, stainless steel and plastic joints/joints, temporary repair of metal surfaces, fixing hose and copper pipe, etc. Aluminum tape is suitable for smooth flat and irregular surfaces. | 【Strong Adhesion】Our metal duct tape is made of high quality pressure sensitive adhesives. Stronger sticking, easier tearing, leave no trace without residual glue. Provide you with excellent adhesion and stability under low and high temperature conditions (long-term temperature resistance: 120℃, short-term temperature resistance: 350℃). | 【3.9mil Thick Aluminum Foil Tape】If the HVAC duct tape is too thin, it will break easily, and if it is too thick, it will be difficult to fit the pipe surface. The aluminum tape of 3.9mil thickness is moderate and perfect for use. So our 3.9mil foil tape is not easy to break, high quality and affordable. It's easy to separate, just rip it apart lightly. Better insulation and more tear resistance. The aluminum tape itself does not wrinkle and curl, making it easier to work and saving you time. | 【Premium Foil Tape】Good waterproof performance, UV resistance, moisture resistance, corrosion resistance, anti-aging, insulation, flame retardant. Performs well in any type of weather! This aluminum tape is your best choice. | 【Package Included】You will get 3 rolls aluminum foil tape. Dimensions: 2 inches wide, 65 feet long and 3.9 mil thick. If you have any questions about our aluminum tapes, please feel free to contact us. We will get back to you within 24 hours.