Terms of the Trade: What is Foil Tape?

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Malleable yet strong, aluminum foil tape provides a wide range of uses, protecting areas like pipes and ducts from moisture, chemical, flame or weather damage. Foil tape is useful as well to reflect both heat and light, and the material acts as a thermal conductor. In general, foil tape is used to conduct, seal and protect from various kinds of damage. An acrylic adhesive is commonly used to back foil tape, aiding in its long-term performance and ensuring a secure bond.

Foil Tape Characteristics

Foil tape is capable of functional use in temperatures ranging from -65 degrees F to 300 degrees F. It's thermally conductive, making it useful in heating and cooling applications. Foil tape seals surfaces, preventing dust buildup, and the moisture vapor transmission rate of foil tape is suitably low to protect against water or air leaks and seepage as well. The aluminum surface of foil tape reflects light and heat, so sensitive materials may be protected from damage caused by hot spots.

Common Uses

Aluminum foil tape is often used as a moisture barrier on home appliances. Additionally with appliances, it is useful at holding wires and/or cooling coils in place. Foil tape enjoys general purpose use for reflecting or dissipating heat as well as sealing, patching or simply holding things in place, whether indoors or outside.