Sound Seal Acoustical Pipe and Duct Lagging Flexible Noise Barrier: B-20 Lag / QFA-9 is a composite material featuring a flexible two pound per square foot reinforced-foil faced loaded vinyl noise barrier bonded to a 2” thick quilted fiberglass decoupler/sound absorber.  Used to wrap noisy pipes, ducts, valves and fan housings.

• Standard roll is 54” wide x 30’ long
• Extremely easy to install
• 100% adhesion coverage between barrier and quilt
• Class A (or 1) flammability rating per ASTM E-84