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WM2 is a sandwich composite incorporating 2 layers of Acousti-Mat acoustical foam and a single barrier septum. When applied to sheet metal, plastic or wood, the isolation foam layer, typically 1/4 inch thick, decouples the barrier while the thicker absorption layer reduces airborne sound. This economical acoustical system can be formulated to provide maximum noise reduction in the harshest environment by adding various facings or embossed surfaces.
Unit of Measure

Specifications

Foam Thickness

 N/A 1/4 to 2 in

Optional Surface Treatments

 N/A Embossed, Convoluted, Aluminum Polyester, Reinforced Polyester, Urethane-Matte or Impervious, Perforated Vinyl (Sandpiper, Black), Tedlar® (Dupont)

Other Specifications

 N/A Fabricated and Die Cut Parts

Sound Absorption Coefficient - Standards

 N/A ASTM C423-90a

Sound Absorption Coefficient - Sound Transmission Class (STC)

 N/A 0.85 dB

Standard Roll Size

 N/A 54 in x 50 ft

Standard Sheet Size

 N/A 54 x 72 in

Sound Absorption Coefficient @ 1000 Hertz (Hz) Frequency

 N/A 1.05 dB

Sound Absorption Coefficient @ 125 Hertz (Hz) Frequency

 N/A 0.04 dB

Sound Absorption Coefficient @ 2000 Hertz (Hz) Frequency

 N/A 1.02 dB

Sound Absorption Coefficient @ 250 Hertz (Hz) Frequency

 N/A 0.36 dB

Sound Absorption Coefficient @ 4000 Hertz (Hz) Frequency

 N/A 0.98 dB

Sound Absorption Coefficient @ 500 Hertz (Hz) Frequency

 N/A 0.95 dB

Note

Note

 N/A Custom facings available