VapAir Seal™ 725TR Air and Vapor Barrier/Temporary Roof is a composite consisting of self-adhering rubberized asphalt laminated to a woven polypropylene film. A siliconized one-piece release liner prevents the material from bonding to itself in the roll and easily removed for installation. The factory-controlled thickness of the membrane ensures uniform barrier properties on the job; the woven polypropylene film increases strength and has a non-skid surface suitable for the bonding of subsequent layers. VapAir Seal 725TR can be used on concrete, exterior gypsum, plywood, DensDeck® Prime, SECUROCK® or other approved substrates in conjunction with Carlisle SynTec roofing systems. Gypsum decks may require additional securement with mechanical fasteners. Use of CAV-GRIP™, CCW-702 or CCW-702LV is required on all substrates. It may be installed directly over a nailed Carlisle Modified Base Sheet when primed with CAV-GRIP. Approved Carlisle adhesives for attaching insulation to VapAir Seal 725TR are: