3M Venture Tape FSK Facing Tape 1525CW is a 5.5 mil tri-directional reinforced tape that excels in demanding temperature and humidity applications. It is comprised of a foil/scrim/kraft laminated backing coated with a cold weather acrylic adhesive. This backing is flexible and conforms well to irregular surfaces and curves. With superior resistance to weathering, mold, UV and environmental conditions, this tape performs extremely well in demanding cold and hot temperature applications. It applies easily to both fibrous and sheet metal ductwork and is easily installed without special tools or application methods.