A 4.8 mil 3-way dead soft aluminum foil/fiberglass scrim/paper backing coated with a 2 mil aggressive adhesive and wound with a 3.2 mil removable paper release liner. Malleable foil conforms well to irregular and curved surfaces to maximize adhesive contact and provide quick, positive grab to the insulation surface.
Used as a closure system for fiberglass and mineral wool insulation systems that are faced with foil, to seal seams and joints on aluminum-faced fiberglass duct board, and to provide a vapor barrier that assures the integrity of the system.
3" neutral core.