Zero-Perm Vapor Barrier Facing
July 2008
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A white, zero-perm, UV-resistant facing can be used as a sealant inside ductwork or as a low-temperature vapor barrier on freezer walls where permeability is a concern. VentureWrap 1555W/U is also used as a zero-perm jacketing on all types of pipe insulation, including foam glass, urethane, Styrofoam, or fiberglass. The product is a three-ply laminate constructed of 1-mil aluminum foil in between a layer of 0.5 mil polyester film and a white polypropylene outer layer. ASTM E-84 listed, it can be applied with spray glue, double-sided tape, or with the firm’s 1555CW-W tape. Its temperature resistance ranges from –40˚ to 240˚F.


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