Noise Absorber, Width 48 In., Length 25 ft., Thickness 2 In., Color Gray, Noise Reduction Coefficient (NRC) 0.80, Material Quilted Fiberglass With Aluminized Facing, Temp. Range -30 to 250 Degrees F, Resistant To Moisture, Lubricants, Fuels, Grease, Solvents, Coverage 100 sq. ft., Standards Flammability ASTM E84 Class IFeaturesThickness: 2"Coverage: 100 sq. ft.Color: GrayResistant To: Moisture, Lubricants, Fuels, Grease, SolventsItem: Noise AbsorberTemp. Range: -30 to 250 Degrees FMaterial: Quilted Fiberglass With Aluminized FacingStandards: Flammability ASTM E84 Class IWidth: 48"Application: Recommended For Use In Harsh Environments, Aluminized Facing Protects Against Moisture, Lubricants, Fuels, Grease and SolventsLength: 25 ft.Noise Reduction Coefficient (NRC): 0.80