Ethafoam® Whisper™ is a closed cell polethylene foam which has cells that are subsequently opened through the manufacturing process resulting in a highly efficient sound absorbent material with unique advantages compared to other materials.
Resilient to Water and Humidity.
One of the key features of Ethafoam® Whisper™ foam is the ability to remain almost unaltered when exposed to water or humidity, the product’s acoustic performance remains consistent.
Testing of Ethafoam® Whisper™ foam was carried out at Instituto Giardani, Italy under the EN ISO 354: 2003. Measurement of Sound Absorption in a reverberation room.
In-house testing using Sealed Air own Impedence Tube takes place on a regular basis to qualify the acoustic performance on Ethafoam® Whisper™ foam.