Aluminum foil tape is pretty tough. It maintains its integrity in very cold and very hot temperatures. This tape is commonly used to secure duct seams, connections, and joints. Additionally, it has excellent waterproof properties. These features allow aluminum foil tape to protect exteriors against the elements and harmful chemicals.

Aluminum Foil Tape is usually made with aluminum, but some foil tapes use lead or copper backings instead. Some foil tape varieties also contain glass, tin plating, or steel. The metal in foil tape gives it extra durability compared to plastic-based tapes. Most foil tapes can withstand temperatures between -40°F and 350°F. Since all the metals used in foil tape are relatively soft, the tape is highly malleable. The best foil tape combines the flexibility and protective qualities of aluminum, copper, and lead foil with a top-notch adhesive.