Aluminum tape, also known as foil tape, has many uses in the electrical, HVAC and construction industry. It can be used in jobs requiring moisture and chemical resistance, thermal conductivity, flame resistance, heat and light reflectance, and weatherability. There are several different styles of tape available, including acrylic adhesive, line-less, polymer coated, and flame resistant aluminum glass tape.
Foil tape with an acrylic adhesive is used for sealing off vapors in fiberglass duct board, sheet metal ducts and FSK systems. It is ideal for use in HVAC systems, due to its high tack cold weather acrylic adhesive, which helps it to adhere well, even in periods of low temperature and high humidity. It performs at its optimum level in temperatures between -40° and 250°F (-4.4° and 121.1°C), with a tensile strength of 21 pounds per inch (9.5 kg per 2.54 cm) of width.
Line-less aluminum tape is used for refrigeration duct bonding, due to its water-based acrylic adhesive and the absence of a liner. It can also be used for joining and sealing air duct seams and connections. This tape has a service temperature range of 68° to 248°F (20° to 120°C).