JM Spiracoustic Plus® is a spiral duct liner system engineered to provide great acoustical and thermal performance for spiral air duct interiors with an airstream dia of 6 in and larger. Spiracoustic Plus® delivers significantly improved acoustical and thermal performance compared to double-wall construction, all at a competitive cost for the system. It is manufactured with evenly-spaced kerfs to allow the material to conform to the inside diameter of spiral ducts, producing a finished airstream surface. This surface is coated with our proprietary Permacote® coating, which provides a durable surface and added product protection against microbial growth. As an added benefit, the exterior surface is laminated with a tough fire-resistant FSK facing.

JM Spiracoustic Plus® Small Diameter Duct Liner, 120 ft Length, 48 in Width, 1 in Thickness, Air Flow Velocity: 6000 fpm, R-Value: 4.3, Fiberglass, Black/Silver/White/Yellow, 250 deg F, 240 sq-ft/CTN Coverage Area, Domestic/Import: Domestic

• Cost effective - Spiracoustic Plus® duct liner eliminates the need for costly double-wall configuration in round air ducts
• Improves indoor building environment - improves indoor environmental quality by helping to control both temperature and sound
• Resistant to dust and dirt - the tough acrylic polymer Permacote® coating helps guard against the incursion of dust or dirt into the substrate, minimizing the potential for biological growth
• Permacote® coating is formulated with an immobilized EPA-registered protective agent to protect the coating from potential growth of fungi and bacteria