Fire Retardant Acoustic Foam
FR25 acoustic foam is a fire retardant polyether based polyurethane foam designed to provide acoustic and fire resistant properties. It is grey in colour and flexible to use and handle.
Key Features
- Available in sheet form
- Flexible and easily cut
- Easy to handle and install
- Suitable for curved surfaces or complex shapes
- Available with various backings including self-adhesive backing
Availability
FR25 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
| Standard sheet size |
2m x 1.2m |
| Standard Thickness |
12mm, 25mm, 35mm, and 50mm |
Applications
FR25 acoustic foam is typically used for machinery enclosures, doors, walls, partitions and air conditioning ducts. It is also ideal for insulating cabs of industrial vehicles and enclosures for vehicle and boat engines. For wall and machinery enclosures, the acoustic performance of FR25 can be dramatically enhanced when used in combination with DS damping sheet. FR25 is a non-dusting and flexible acoustic foam that provides excellent sound absorption.
Technical Information
| Density |
21-25 kg/m3 |
| Indentation Hardness |
125-155 N |
| Tensile Strength |
70 kps |
| Elongation at break |
150% (minimum unaged) |
Operating Temperatures
|
80ºC (max continuous)
110ºC (intermittent)
-30ºC (minimum) |
| Fire Tests |
| BS 4735 : 1974* |
Complies |
| Flammability (FMVSS 302) |
Pass |
*BS 4735 contains the statement "The test results relate to the behaviour of the test specimens under particular conditions of test; they should not be used as a means of assessing the potential fire hazard of the material in use".
Acoustic Performance
FR25 Acoustic foam is a high performance material that has been acoustically tested as follows.
| Material \Hz |
63 |
125 |
250 |
500 |
1K |
2K |
4K |
8K |
12mm FR25
25mm FR25
50mm FR25 |
0.05
0.04
0.09 |
0.07
0.09
0.20 |
0.06
0.20
0.51 |
0.13
0.41
0.90 |
0.31
0.68
1.08 |
0.45
0.88
0.94 |
0.74
0.94
1.02 |
0.98
1.11
1.11 |
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