Polyurethane Non-Flammable Acoustic Foam
A general purpose acoustic foam that due to its extended properties is highly adaptable. Our Polyurethane is a class 'O' acoustic foam that is a fire retardant modified foam designed to meet the stringent requirements of the British Building Regulations. Dark grey/ Black in colour, it is CFC and HCFC free.
Key Features
- Available in sheet or roll form
- Flexible and easily cut
- Easy to handle and install
- CFC and HCFC free
- Available in various backings
- Non-toxic
Availability
Polyurethane non-flammable acoustic foam is available in plain format or with a wide range of facing and backing materials to suit the application or to ease installation. Standard surface treatments available are:
- Self adhesive backing
- Class 'O' Foil Facing (COFF)
- Melinex facing
- 200gm Woven glass cloth facing
- S-V1 Polymeric Coating
- SVG1 Vinyl coated glass cloth facing
| Standard sheet size |
2m x 1m (also available in 10m & 20m rolls) |
| Standard Thickness |
6, 12, 15, 20, 25, 30, 45, 50, & 70mm |
Applications
- Internal and external duct linings
- Thermal & acoustic machine coverings
- Suspended ceiling adsorptive panels
- Composite constituent combined with acoustic barrier material for acoustic flooring and external lagging
Technical Information
| Density |
90 to 108 kg/m3 |
| Indentation Hardness |
156 N |
| Elongation at break |
188% (minimum unaged) |
Operating temperatures
|
80ºC (max. continuous)
110ºC (intermittent)
-30ºC (minimum) |
| Fire Tests |
| BS 476: Parts 6&7 |
Class 'O' |
| BS 476: Part 5: 1979 |
Class P |
| BS 476: Part 6: 1981 |
F.p.i index 8.5 |
| BS 476: Part 7: 1987 |
Class 1 |
| BS 4735 |
Char 4.5mm |
| BS 5852 Part 2 |
Pass |
| Civil Aviation CAA8 / FAA |
Pass |
Flammability (FMVSS 302)
|
zero bum rate
Self extinguishing |
| ASTM 1692: 1974 |
Resists ignition |
| UL 94 Classification |
94-V-0 |
| ATS1000.001 Smoke Toxicity |
Pass |
| Erosion Resistance |
10,000cu ft/min |
| NES (Naval Eng. Standard) |
713 Issue 3 |
Acoustic PerformancePolyurethane acoustic foam is a high performance material that has been acoustically tested at a UKAS certified independent test laboratory.
Random Incidence Sound Absorption Coefficient (dB) as tested in accordance with BS3638: 1987
Material
Thickness |
Frequency (Hz) |
| 125 |
250 |
500 |
1k |
2k |
4k |
NRC |
12mm
25mm
50mm |
0.08
0.08
0.19 |
0.14
0.20
0.49 |
0.22
0.56
0.87 |
0.32
0.93
0.97 |
0.40
0.84
0.97 |
0.53
0.92
1.04 |
0.27
0.63
0.76 |
Ductwork Attenuation (dB) - Airborne noise
Material
Thickness |
Duct Size |
Frequensy (Hz) |
| 125 |
250 |
500 |
1k |
2k |
4k |
12mm
25mm
50mm
25mm
50mm
25mm
50mm |
900x600
900x600
900x600
450x600
450x600
300x600
300x600 |
0.2
0.2
0.8
0.4
1.6
0.6
2.6 |
0.6
0.8
2.9
1.0
3.1
1.4
5.4 |
1.7
2.9
7.2
3.3
8.7
3.8
10.5 |
3.7
10.8
11.0
14.1
16.6
15.1
19.5 |
5.3
6.9
7.1
8.3
8.8
12.0
15.1 |
4.5
7.2
6.2
8.9
8.6
11.4
11.6 |
Ductwork Attenuation (dB) - Breakout noise
Material
Thickness |
Duct Size |
Frquency (Hz) |
| 125 |
250 |
500 |
1k |
2k |
4k |
| 12mm |
900x600 |
2.9 |
5.1 |
8.8 |
4.2 |
7.2 |
13.0 |
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