Cold Seal 729 ASJ is a pressure sensitive butt strip tape designed to provide a seamless finish to state-of-the-art duct board pipe insulation facings composed of white metallized polypropylene/scrim/foil (WMP).  Cold Seal 729 ASJ is coated with an acrylic adhesive that performs in a wide range of atmospheric conditions to insure the long term integrity of the vapor seal of longitudinal and butt joints.