Whispermat1  combines a single barrier layer with a single layer of Hushcloth® acoustical foam.  When the barrier is applied to sheet metal, plastic, or wood, the foam is exposed to absorb airborne noise.

WM1

The barrier functions both to contain sound, and acting as a mass damper, eliminates structural vibration.

When the foam is applied to the structure the barrier is decoupled.  The exposed barrier becomes a tough, durable surface with enhanced transmission loss properties.  Often a facing will be laminated to the barrier to increase both durability and weatherability when used as a pipe wrap.

When a 1/4" or 1/2" foam decoupler is incorporated WM1 is frequently used as a carpet underlayment.  When moisture is of concern, as in the case of a marine or truck cab application, closed cell foams can be used

OPTIONS:
Surface Treatments
Foam Side:	Embossed, Aluminized polyester, reinforced metalized, and urethane (white, black)
Barrier Side:	Plain black, white reinforced, Silver reinforced

Standard Sizes:
Rolls	54" x 50'
Sheets	54" x 72"
Fabricated or Die Cut Parts Foam Thickness	1/4" - 2"

Specifications
Frequency Hertz	125	250	500	1000	2000	4000
Transmission Loss, db	18	20	25	32	34	36
Transmission loss ASTM E90-75 1" absorber without enhancement Riverbank Acoustical Laboratories