SONEX Prospec products are designed to contain and deaden noise at its source. Ideal for isolating noisy equipment & improving the transmission loss of walls & ceilings. SonexProspec Barrier is a rugged .125" thick loaded vinyl sheet which can be integrated into walls or hung like a curtain, providing exceptional noise transmission reduction. Rolls are 20' or 60' x 54". SonexProspec Barrier is UL 94 V-O fire rated. SonexProspec foam in FIBER-FREE and ASTM E 84 Class 1 rated for low flammability. Can be suspended like a curtain, woven inside a wall cavity or mounted over an existing wall.