Black Acoustical Board

Name: Black Acoustical Board
Brand: Knauf Insulation

Purposefully engineered for restaurants, theaters and other places where good acoustical performance is needed. The minimalistic design of the black surface adds good aesthetics to walls and ceilings. It's smooth yet strong — able to resist damage during installation and operation.

Applications

Certifications

Product Features

Proven Performance

Delivers ideal acoustics. Designed with a black mat facing delivering good aesthetics and a smooth surface, this board is your go-to for reducing sound transmission.

Quality Design

From install to day-to-day performance, this product delivers. With a brown base board and tough black mat facing, trust it to resist damage during installation and operation.

ECOSE® Technology

Our patented, bio-based binder is a smarter alternative to using phenol formaldehyde. It’s been foundational in our commitment to sustainability.

Product Details

Technical Data

Technical Data
Property (Unit)	Test	Performance
Maximum Service Temperature	ASTM C411	250° F (121° C)
Mold Growth	ASTM C1338, G21, G22	Pass
Water Vapor Sorption (by weight)	ASTM C1104	3% or less
Surface Burning Characteristics (flame spread/smoke developed)	ASTM E84, UL 723, CAN/ULC S102	UL Classified FHC 25/50

Forms Available

Forms Available*
Density	Thickness	R-Value	Width	Length
2.25 PCF (36 kg/m³)	2" (51 mm)	R-8.7	24" (610 mm)	48" (1219 mm)
3.0 PCF (48 kg/m³)	1" (25 mm)	R-4.3
	1½" (38 mm)	R-6.5
	2" (51 mm)	R-8.7

*Some products listed may be custom products. All custom product requests require approval from Knauf Insulation, regardless of whether the product has previously been produced. Special pricing and minimum order quantities will apply.

Thermal Conductance “C” and Resistance “R”

Thermal Conductance “C”¹ and Resistance “R”² \| ASTM C177
Mean Temperature 75° F (24° C)
Product		Conductance "C"	Resistance "R"
2.25 PCF (36 kg/m³)	2" (51 mm)	0.11 (0.62)	8.7 (1.53)
3.0 PCF (48 kg/m³)	1" (25 mm)	0.23 (1.31)	4.3 (0.76)
	1½" (38 mm)	0.15 (0.85)	6.5 (1.15)
	2" (51 mm)	0.11 (0.62)	8.7 (1.53)
“C Units” BTU ft2 ∙ hr ∙ ˚F W m2 ∙ ˚C “R Units” ft2 ∙ hr ∙ ˚F BTU m2 ∙ ˚C W

¹The lower the value, the better the performance. ²The higher the value, the better the performance.

Sound Absorption Coefficients

Sound Absorption Coefficients \| ASTM C423, Type A Mounting
Product		Octave Band Center Frequency (cycles/sec.)
Density	Thickness	125	250	500	1000	2000	4000	NRC
2.25 PCF (36 kg/m³)	2" (51 mm)	0.26	0.62	1.05	1.07	1.04	1.05	0.95
3.0 PCF (48 kg/m³)	1" (2 mm)	0.13	0.24	0.56	0.83	0.92	0.98	0.65
	1½" (38 mm)	0.19	0.41	0.89	1.02	1.03	1.04	0.85
	2" (51 mm)	0.33	0.67	1.07	1.07	1.03	1.06	0.95

All Product Resources

January 2020 (PDF / 383.59 KB)

Data Sheet - Black Acoustical Board

Added

January 2017 (PDF / 152.84 KB)

UL Environmental Claim Validation - Formaldehyde Free - Black Acoustical Board

Added

November 2009 (PDF / 286.16 KB)

GREENGUARD Gold - Black Acoustical Board

Added

August 2012 (PDF / 154.94 KB)

UL Environmental Claim Validation - Recycled Content - Black Acoustical Board

Added

November 2009 (PDF / 276.18 KB)

GREENGUARD - Black Acoustical Board

Added

December 2019 (PDF / 1.67 MB)

Safety Data Sheet - Black Acoustical Board

Added

August 2022 (RVT / 1.24 MB)

Revit File - Black Acoustical Board

Added

Customer Reviews

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