WM1 combines a single barrier layer with a single layer of Acousti-Mat acoustical foam. When the barrier is applied to sheet metal, plastic or wood, the foam is exposed to absorb airborne noise. The barrier functions to both contain sound and clamp structure borne vibrations.

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 tomore
Unit of Measure

Specifications

Foam Thickness

 1/4 to 2 in

Optional Surface Treatments

 Foam Side - Embossed, Aluminized Polyester, Reinforced Metalized and Urethane (White, Black)
Barrier Side - Plain Black, White Reinforced, Silver Reinforced

Other Specifications

 Fabricated and Die Cut Parts

Standard Roll Size

 54 in x 50 ft

Standard Sheet Size

 54 x 72 in

Transmission Loss @ 1000 Hertz (Hz) Frequency

 32 dB

Transmission Loss @ 125 Hertz (Hz) Frequency

 18 dB

Transmission Loss @ 2000 Hertz (Hz) Frequency

 34 dB

Transmission Loss @ 250 Hertz (Hz) Frequency

 20 dB

Transmission Loss @ 4000 Hertz (Hz) Frequency

 36 dB

Transmission Loss @ 500 Hertz (Hz) Frequency

 25 dB

Sound Transmission Loss- Standard

 ASTM E90-70

Transmission Loss - Sound Transmission Class (STC)

 0.30 dB

Additional Information

Additional Information

 When a 1/4 inch or 1/2 inch 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.