Noise Reduction Partition Panel Width 4 ft Length 25 ft Thickness 2 in Color Gray Noise Reduction Coefficient (NRC) 0.65 Material Quilted Fiberglass Temp Range 0 Degrees to 1000 Degrees F Resistant To Alkalis Dirt Dust Grease Mild Acids Moisture Oils Coverage 100 sq ft Standards ANSI S1.6 Includes 4 ft x 25 ft Panel Quilted Fiberglass