wm2dBmat WM2 is a sandwich composite incorporating 2 layers of dBcloth acoustical foam and a single barrier septum. When applied to sheet metal, plastic or wood, the decoupling foam layer typically ¼”(6mm) thick isolates the barrier while the thicker absorption layer reduces airborne reverberant noise.

Key Benefits

  • Proprietary manufacturing process ensures permanent bonding between foam and vinyl barrier material
  • Can be formulated to provide maximum noise reduction in the harshest environment by adding various facings or embossed surfaces
  • Available in a wide range of weights, thickness and as sheets or rolls
  • UL94 V0 barrier available
Barrier Type Frequency (Hz)
  125 250 500 1K 2 K 4 K NRC
WM2 – 1″(25mm) Absorber 0.04 0.36 0.95 1.05 1.02 0.98 0.85
WM2 – 1″(25mm) Absorber Aluminized Face 0.13 0.32 0.39 0.38 0.87 0.43 0.50
ASTM C423 – 90a Absorption Coefficient