WHISPER® | Sound-absorbing polyethylene panels

SEE’s Whisper® panels are a sound-absorbing material made from high-performance polyethylene foam, with a honeycomb-type structure of interlinked closed cells. They remain acoustically ‘soft’, eliminating the hard, reflective surfaces that cause reverberation and echo. In the 40 and 50 mm thicknesses, they are classified as high-absorption materials — Class A according to EN ISO 11654.

The ARGYNET View:

Whisper® solves a specific problem: sound absorption in environments where fibrous materials are unsuitable — water, moisture, dust, chlorine, UV, aggressive chemicals. It is a non-polar, low-surface-energy plastic: water and dust do not adhere to it. In a ‘once-in-50-years’ storm simulation (water 3 l/min, wind up to 16 m/s), it retains 100 per cent of its acoustic performance after drainage, without a moisture barrier, protective membrane or perforated metal lining. It is completely fibre-free: it does not crumble, nor does it release irritating dust or corrosive gases — so installation does not require gloves, masks or protective barriers. Semi-rigid and self-supporting, it can be cut with a blade or saw and installed as a baffle, ceiling raft or wall cladding.