MATERIALS, ADHESIVES AND COATINGS
AEROFONIC® reticulated felted sound-absorbing foam for aviation and rail transport, FAR 25.853
Country: USA · Model: AEROFONIC
Reticulated felted polyurethane foam for sound absorption in aviation and rail transport. Density 5.4 lb/ft³ (about 86 kg/m³), pore size 70 ppi, complies with UL 94 HF-1 and FAR 25.853. It is supplied in sheets of a given thickness for die-cutting parts.
- Material
- reticulated (fully open cell) felted polyurethane foam
- Density
- 5.4 lb/ft³ (≈86 kg/m³)
- Pore size
- 70 ppi (not per the ASTM method)
- Compression set at 50 % compression
- 10 %
Technical specifications
| Material | reticulated (fully open cell) felted polyurethane foam |
|---|---|
| Density | 5.4 lb/ft³ (≈86 kg/m³) |
| Pore size | 70 ppi (not per the ASTM method) |
| Compression set at 50 % compression | 10 % |
| NRC | 0.412 |
| SAA | 0.415 |
| Sound absorption | measured per ASTM E1050 and ASTM C423 at a thickness of 20 mm |
| Fire safety | UL 94 HF-1; FAR 25.853 App. F Part I (a)(1)(i) and (a)(1)(ii) |
| Applications | aircraft air duct lining, aircraft turbine engines, armored vehicles, high-speed railcars, diesel equipment, air conditioners |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The material is made from reticulated polyurethane foam with all cell membranes removed, and then permanently compressed with heated plates to the given density (firmness) and thickness. By changing the machine settings and the ratio of the starting thickness to the thickness of the finished felt, the design properties are set. The fully open structure and stable permeability make it possible to design sound-absorbing assemblies to requirements that less uniform materials do not meet. Per the data sheet, compression set after 50 % compression is 10 %, NRC 0.412, SAA 0.415. Sound absorption was measured in an impedance tube per ASTM E1050 and in a reverberation chamber per ASTM C423 on samples 20 mm thick in the range of roughly 100 Hz to 10 kHz. For burning behavior the foam complies with FAR 25.853, Appendix F, Part I, paragraphs (a)(1)(i) and (a)(1)(ii), that is the vertical burn test for materials of aircraft cabins and compartments.
How to choose
First find out the burning requirements. If FAR 25.853 and UL 94 HF-1 are needed for cabins and compartments, the AEROFONIC® is suitable. Low-density grades work as sound absorbers, denser and low-permeability ones as vibration dampers, so density and permeability are matched to the task. For a hot humid environment, hydrolysis resistance is declared specifically for Hyfonic™ on polyether.
Request a price and lead time
AEROFONIC® reticulated felted sound-absorbing foam for aviation and rail transport, FAR 25.853. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What are the acoustic parameters of AEROFONIC?
Noise reduction coefficient NRC 0.412 and average sound absorption coefficient SAA 0.415 on samples 20 mm thick in the range from 100 Hz to 10 kHz.
Which burning requirements does AEROFONIC meet?
Class UL 94 HF-1 and FAR 25.853, Appendix F, Part I, paragraphs (a)(1)(i) and (a)(1)(ii).
What are the density and pore size of AEROFONIC?
Density 5.4 lb/ft³ (about 86 kg/m³), pore size 70 ppi, determined not per the ASTM method. Compression set after 50 % compression is 10 %.
By which methods is the sound absorption of AEROFONIC measured?
In an impedance tube per ASTM E1050 and in a reverberation chamber per ASTM C423.
Where is AEROFONIC used?
In the lining of aircraft air ducts, aircraft turbine engines, diesel equipment, armored vehicles, climate equipment and high-speed railcars, as well as in field hospital power units and gaskets.
Similar products
C-RAM RGD / KR / KRS / KFS / VHPC-RAM RGD / KR / KRS / KFS / VHP rigid and cast iron-epoxy and iron-silicone absorbers, radar-absorbing paints
C-RAM EVA / SFC-MP / ODP / CFCC-RAM EVA / SFC-MP / ODP / CFC higher-power, ventilated, all-weather and cleanroom pyramidal absorbers
UV15DC80 / UV22DC80-1 / UV26DC / LED401 / LED422DC90Dual-Cure Systems (UV/LED + Heat) for Shadow Areas
EP21TP-2NV / EP21TPFL-1 / EP21TPHT / EP30D-7 / Super Gel 9Epoxy-Polysulfide and Urethane-Modified Flexible SystemsREQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.