... and vapor proof. Aluminium foil scrim kraft facing (2-way fiberglass)Features:to be sealed on glass wool ... anticorrosive, easy to laminate, durableSpecifications: a) Foil:7μ b)2-way scrim c) PE d) Kraft: 50gsm,55gsm3) Roll width ... 0m,1.2m,1.25m,1.30m4) Roll length: 60,120, 300, 500, 1800, 3000mKraft,Roll Width,Roll length ... with customers' requests) Aluminium foil scrim kraft facing (2-way fiberglass)