FoamHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data unter http://www.illbruck-raumakustik.de
Value from the PTB table, not verified
illbruck batts melamine foam panel, non-woven faced on both sides
batts
PTB reference data
Original description
illbruck batts melamine foam panel, non-woven faced on both sides
Material properties
Manufacturer: illbruck GmbH
Thickness: 50 mm, 30 mm, 15 mm
Backing: non-woven faced on both sides
Up to fire class: B1 according to DIN 4102 (not easily flammable)
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 3 variants
αw
1.00
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.25 | 0.70 | 1.00 | 1.00 | 1.00 | 1.00 |
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| Compare | Value | |
|---|---|---|
| 50 mm | αw1.00 | |
| 30 mm | αw0.85 | |
| 15 mm | αw0.65 |
Weight / density: ca. 11 kg / m³
Dimensions: 1193 x 593 mm, 1243 x 618 mm
Measured values as a table (3 measurements)
| Build-up | αw | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 mm · ca. 11 kg / m³ | 1.00 | 0.16 | 0.20 | 0.33 | 0.50 | 0.75 | 0.86 | 0.96 | 1.01 | 1.01 | 1.01 | 1.01 | 1.02 | 1.03 | 1.05 | 1.04 | 1.03 | 1.02 | 1.02 |
| 30 mm · ca. 11 kg / m³ | 0.85 | 0.10 | 0.14 | 0.24 | 0.40 | 0.61 | 0.68 | 0.82 | 0.95 | 0.96 | 0.97 | 0.98 | 0.99 | 1.00 | 1.00 | 1.01 | 1.00 | 0.99 | 0.98 |
| 15 mm · ca. 11 kg / m³ | 0.65 | 0.07 | 0.11 | 0.19 | 0.28 | 0.37 | 0.44 | 0.58 | 0.73 | 0.80 | 0.85 | 0.90 | 0.90 | 0.87 | 0.87 | 0.86 | 0.91 | 0.95 | 0.95 |
Measured values as a table (3 measurements)
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