About This Product Specifications: Aluminium Foil Tape, Size: 1 inch x 65 Feet (25 mm x 20 M), Total Thickness: 4 mil (0.1mm), Character: Adhesive and Heat Resistant, Work Temperature: -4F (-20C) - 248F (120C), Color: Silver Optimal Thickness Design: Thickness of this foil tape is 4.0mil (about 0.1mm) and the thickness of 3.0mil is best for use. A thickness less than 4.0mil foil tape will be more easy to be broke, or curl to a roll, paste itself, meanwhile, you will annoy at its difficulty to take the back paper out. Yet if it is too thick, the flexibility is not so good, and it will be difficult to fit irregular surfaces of air duct High Quality Construction: This high quality, high tensile strength premium aluminum tape has the advantage of strong, cold resistance, that equips with flexible and suitable thickness of aluminum foil and industrial grade adhesive liner to save your time and energy Extreme Temperature Resistance: Withstands extreme temperature from -4F (-20C) - 248F (120C), fit for almost all US states, suitable for both indoor and outdoor use. Resists flame, thermally conductive, moisture, weather, some chemicals and smoke transmission, corrosion and rusty resistant Versatile Applications: Widely used for sealing hot and cold air ducts (especially for HVAC tube), insulating aluminum duct pipes, aluminum alloy seals, stainless steel and plastic joints, temporary repair of metal surfaces, copper pipe fixing, home vent hose, dryer duct hose or bath room vent hose repairs Overview Brand : BlueNatHxRPR Color : Silver Material : Aluminum,Aluminum Foil Number of Items : 1 Recommended Uses For Product : Indoor, Plumbing