Whisper is Sealed Air's unique technology platform for reducing airbourne noise. New Whisper® NB has been manufactured specifically to meet the requirements of environmentally- conscious, noise barrier wall manufacturers with a recylcable foam based material able to be installed directly outdoors as a cladding, meeting the rigorous acoustic and durability standards as well as the new in-situ reflection norms. Whisper NB was conceptualised from the start to meet A3 and A4 absorption values (highly absorptive); while having the lowest possible carbon emissions. Whisper NB has been independently tested to EN 14389-1-2 for a minimum of 50 years outdoor life. If you want to reduce your carbon footprint, improve your durability, or moved toward easily recycled materials, Whisper can help. Come visit us!Â