Duct tape, sometimes called duck tape, is cloth- or scrim-backed pressure-sensitive tape, often coated with polyethylene. There are a variety of constructions using different backings and adhesives. One variation is black gaffer tape, which is designed to be non-reflective and cleanly removed, unlike standard duct tape. Another variation is heat-resistant foil (not cloth) duct tape, useful for sealing heating and cooling ducts, produced because standard duct tape fails quickly when used on heating ducts. Duct tape is generally silvery gray, but also available in other colors and even printed designs.
Specialty grade cloth duct tape, available in a selection of fluorescent colors, for color-coding, labeling, floor marking and book-binding, as well as stage preparation in the motion picture and audio/visual industries and general use in the hospitality, motorsports and floral industries. For use indoors and out, PC 619 is conformable to a variety of surfaces, hand-tearable and easy to unwind off the roll.