-Professional Grade: Aluminum foil adhesive tape is used to seal or repair or fixing all kinds of hot and cold ductwork, air ducts, exhaust pipes, smoke pipes, and vents. -Heavy Duty Silver Tape: Designed to resist flame, odor, moisture, vapor, chemicals, smoke transmission, and Performs well in any type of weather! -Shielding interference: Usually used for wrap cables or internal components to protect electronic devices from electromagnetic interference. -Multi-purpose :Used for sealing and patch HVAC duct systems, hot and cold air ducts and dryer vents, duct pipe insulation, aluminum seams, sealed furnace pipe, stainless and plastic seams/joints, temporary repair of metal surfaces, repair fibrous and metals ducts, fixing hose and copper pipe, temporary repair car exhaust pipe, automobile insulation materials, and more.