BM-1C is an extremely versatile noise control composite. It consists of (from the top down)
a clear, tough polyester cover for contamination and weather resistance, a loaded, flexible, 1.6 lb. per sq. ft. barrier for transmission loss, a 0.25 in. urethane foam decoupler. Barymat BM-1C is very effective as an acoustic lagging to reduce breakout noise in pipes and ducts and can be used to increase transmission loss in walls and ceilings.
BM-1C is easy to cut with common utility knives. Installation is very simple. Sections should overlap to eliminate any gaps in the barrier and maintain best acoustic performance. For secure and permanent installations use reinforced duct- tape, bands or specified adhesive - available from Firwin Corp.
