A 2 mil dead soft premium grade Aluminum Foil coated with an extremely aggressive synthetic rubber adhesive that provides a tight positive grab when smoothed down on work surfaces; removable paper liner, total thickness 3.6 mil without liner. Used in fiberglass duct board systems on seams & joints to maintain the integrity of the vapor barrier. Can also be used on FSK systems. Malleable foil conforms well to irregular & curved surfaces.
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