Foamex acoustical materials are designed to perform a number of specific and seemingly opposite acoustical functions…either reducing sound levels, or passing sound undistorted and undiminished…each determined by both the basic design of the foam and its method of application. Certain non-reticulated foams are ideal for sound absorption and attenuation. Reticulated foams can absorb sound very effectively or can be completely acoustically transparent. Noise absorption applications include: commercial aircraft ventilation ducts; headliners and back panels for tractor cabs and off-road vehicles; data-processing equipment; portable air compressors and power units; appliances; snowmobiles; as well as headliners and panels for automobiles.

Sound fidelity applications include: stereo speaker grilles, earphones, and microphone covers. Benefits included are: predictable sound absorption in broad band (low, mid, high) frequency range from engineered foam grades; nearly "total perfection in sound transparency applications (polyurethane foam is 97% air) from other selected grades; fabrication design flexibility; functional/decorative laminate capabilities; installation ease; excellent shape retention, and resistance to wear and abrasion.

Noise Absorption

Acoustical foam will absorb the activity of airborne or fluid-borne noise, causing a loss in energy by weakening reflected vibrations. The sound vibration pulses are literally "tired out" by their effort to force the foam strands to vibrate…and the noise reflected level is immediately reduced. Acoustical foam for sound absorption provides foam that has high efficiency, is consistent throughout, and is predictable from installation to installation. 

Applications Include: Automobile headliners, truck, tractor, off-road vehicle cab liners, office equipment, industrial machinery, marine applications, anechoic test chambers.