Acoustic Material with Low-Frequency Attenuation
Designed as one fully customizable composite, DuPont™ LoWave™ can mitigate low, mid and high
frequency acoustical energy. This highly developed acoustical material effectively reduces low frequency
noise and vibration without altering machine design or existing infrastructure by using less mass, volume
and weight than traditional solutions. Like a blanket, the product is conformable and has the ability to
reduce noise from a variety of sources; such as heating and air conditioning systems, fans, motors and
other mechanical equipment. The versatility and ease of installation enables noise engineers and acoustical
consultants to specify DuPont™ LoWave™ for a variety of unique applications.
DuPont LoWave is an advanced lightweight composite capable of enhanced attenuation.
A passive acoustic material, DuPont LoWave has demonstrated superior mitigation of pure tones below 400Hz
without a significant increase in weight or thickness.
LoWave is appropriate for many applications including industrial, military, commercial and in the transportation sector.
Neva Associates designs and supplies engineered acoustical systems for commercial,
military and industrial environments. We select materials for our various acoustic
composites based on the specific application and the ancillary requirements such
as tensile strength, thermal reduction, air particulates. To some extent, we are
able to construct a composite that reflects the priorities of the application. We
have materials specifically tuned to low frequency noise in the 35 to 250 Hz ranges,
frequencies that are not attenuated by typical limp mass barriers. As the materials
do not rely on mass, they are lighter, flexible and easy to install into multiple
For more information on DuPont™ LoWave™ applications or on using it in your project, please contact us.
Predictable Acoustic Performance
Variations in LoWave™ blanket design permit increased attenuation, particularly in lower frequencies.
The three sample blankets in the graph represent .2 lb/ft2 (A), 1.3 lb/ft2 (B) and 1.7 lb/ft2 (C).
The composite can be
configured to provide other attributes such as mitigation of pure tones, thermal insulation, abrasion
resistance, waterproofing, etc. according to the demands of the application.