ZeroPerm® 35 1/2" x 500' Rolls

Manufacturer: Polyguard
Product Description

ZeroPerm® is now a silver/white reversible, multi layer laminate, complemented by standard tape and self-wound tape. Used as an economical primary vapor barrier on cold systems. The 3-ply composite membrane consists of a white 0.5 mil polyester film, 1.0 mil aluminum foil, and one 0.5 mil clear polyester film. The foil provides the zero permeance in the composite, while the polyester layers protect the foil and provide the white finish, toughness and tear resistance. The white polyester side presents a smooth silver foil finish that can stay exposed when no protective jacket is required, and offers an appearance similar to traditional and next generation ASJ, PVC and PVDC polymer jacketing.

Available in 35 1/2" x 500' Rolls


    Zero-Perm® vapor barrier membrane from Polyguard Products is an absolute “zero perm” barrier that provides maximum protection for all types of insulations used in below ambient, sub-freezing and cryogenic applications on duct, pipe, or vessel systems.

    • Bright white finish similar to traditional ASJ, new WMP-ASJ and PVDC jacketing
    • Meets ASTM E84 25/50 Smoke and Flame requirements.
    • Puncture and tear resistant
    • Zero permeability
    • Paper-free
    • Mold resistant

    Zero-Perm® is typically factory installed by a fabricator but can be installed in the field. Two types of Zero-Perm tapes are available to complete the installation in the field. Both use a high quality, acrylic adhesive with excellent cold weather performance. ZeroPerm A has a kraft release liner and is typically available in 2” and 3” width rolls for sealing longitudinal and circumferential laps. ZeroPerm Self-Wound has no liner, is used on valves and fittings and comes in 1”, 2” and 3” widths. See separate data sheet for ZeroPerm tapes.