LINER BOARD SPIRACOUSTIC R4.3 32in + 1in

JM Spiracoustic Plus® 90007624 Duct Liner System With Thermosetting Resin, LD Round, 120 in Length, 48 in Width, 1 in Thickness, For Use With: Air Conditioning, Heating and Ventilating Systems, 250 deg F, Acrylic, Black

Spiracoustic Plus® duct liner, bonded with a thermosetting resin, is specifically engineered to provide very high acoustical and thermal performance in round air ducts of virtually any size. Based on high density fiber glass board technology, Spiracoustic Plus duct liner has factory-made, evenly spaced kerfs to allow the material to conform to the inside diameter of round air ducts. The airstream surface and transverse edges are protected with JM's factory-applied proprietary black Permacote® acrylic coating. Johns Manville provides the finishing touches to Spiracoustic Plus round duct insulation with SuperSeal® coating products. These unique acrylic coatings are air-drying versions of the factory-applied airstream coating designed for fabrication and repair use. SuperSeal products help retain all the performance characteristics engineered into Spiracoustic Plus duct liner.