The 3M 1" x 5 yd Aluminum Foil Tape 15D126 is a versatile tape with an acrylic adhesive that bonds well to most surfaces. It is 3.6 mils thick and withstands temperatures up to 250°F. Ideal for sealing HVAC ductwork, joining sheet metal, wrapping pipes, and masking during painting, it provides a moisture and vapor barrier and reflects radiant heat. The adhesive adheres well even in cold temperatures. It meets UL 723 and ASTM E84 standards for flame spread and smoke development, making it suitable for various industrial and construction applications.