MATERIAL: Foam or fiberglass core, faced with quilted aluminized fabric. PATTERN: Quilted pattern FEATURES: Effective and durable absorber with mass loaded vinyl barrier option. APPLICATIONS: Effective solution to a wide range of unusual problems. Machinery and work area enclosures. THICKNESS: 1″, 2″ SIZES:BSC-25 Curtain (Quilting on Both Sides) – Standard: 48″ Wide and Lengths up to 25′ BBC-13 Curtain (Quilting on One Side – Standard: 54″ Wide and Lengths up to 25′ Custom sizes also available. COLOR: Standard PVC Facing – Silver Optional PVC facing – Black, Beige, White Sailcloth Colors – Click Here Guilford Fabric Colors – Click Here FLAMMABILITY: ASTM E84, Class A. Flame Spread: 23; Smoke Developed: 30 INSTALLATION: Hook and loop fasteners, grommet hangers, curtain spanport hardware. GROMMETS: Standard Brass. (Stainless steel upgrade available upon request) ID: 9/16″ Grommet Center 1 ¼″ down from top of panel