This versatile product offers both acoustical and thermal insulation. Made from fiberglass preformed into boards, it offers a smooth surface for flatness and uniformity, delivering excellent noise absorption properties. Designed for a wide range of acoustical panels and interior product applications to help minimize noise and improve personal comfort in meeting spaces.

Applications

Certifications
Product Features
Noise Reduction
This board delivers excellent sound absorption characteristics, which is an important benefit for high-trafficked areas like today’s office and interiors.
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Designed to Fit
This product is available in the sizes required to suit your panel and ceiling needs, but special items can be made based on our process capability.
Precision Tolerances
One surface is skidded smooth which allows for flatness and uniformity. Tolerances are +/- 1 ⁄16" for thickness and +/- 1 ⁄8" for width and +/- 1 ⁄4" length fabrication.
Product Details
Technical Data
Technical Data
Property (Unit) Test Performance
Corrossiveness ASTM C665 Does not accelerate corrosion of steel
Maximum Service Temperature ASTM C411 450° F (232° C)
Shrinkage ASTM C356 Less than 0.3% linear shrinkage
Water Vapor Sorption (by weight) ASTM C1104 Less than 5%
Odor ASTM 1304 Pass
Mold Growth ASTM C1338 Pass
Surface Burning Characteristics (flame spread/smoke developed) ASTM E84, CAN/ULC S102, NFPA 90A and 90B, UL 723 25/50
Forms Available
Forms Available
Density Thickness Width Range¹ Length Range Current Minimum (ft²)
6.0 PCF
(96 kg/m³)
¾" (19 mm) 24"-61"
(610 mm-1549 mm)
48"-121"
(1219 mm-3073 mm)
18,000
1" (25 mm) 12,000
1½" (38 mm) 9,000
2" (51 mm) 6,000

All products are custom. It is recommended that Acoustical Smooth Board be sampled and evaluated prior to ordering.
¹Tolerances: Thickness: ± 1 ⁄16" (1.59 mm); Width: ± ⅛" (3.2 mm); Length: ± ¼" (6.4 mm). For requirements not listed, contact your Knauf Insulation Territory Manager.
Thermal Conductivity
Therml Conductivity  |  ASTM C177
@ 75°F Mean Temperature
Density Thermal Conductivity (BTU-in. • ft² • °F)
6.0 PCF (96 kg/m³) 0.22
Sound Absorption Coefficients
Sound Absorption Coefficients | ASTM C423, Type A Mounting
Density Thickness Octave Band Center Frequency (cycles/sec.
125 250 500 1000 2000 4000 NRC
6.0 PCF
(96 kg/m³)
1" (25 mm) 0.05 0.26 0.77 1.04 1.04 1.03 0.80
1½" (38 mm) 0.13 0.58 1.01 1.05 1.00 1.01 0.90
2" (51 mm) 0.32 0.81 1.08 1.06 1.03 1.04 1.00
Packaging Available
Packaging Available
Product Dimensions Package
24" x 48" Carton
48" x 96" Pallet
48" x 120" Pallet
49" x 97" Pallet
49" x 121" Pallet
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