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AlphaComposite™ Polyurethane Foam Data Sheet

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AlphaComposite™ Foam works both as a sound blocker and a sound absorber. It is comprised of three layers - a 1/4" layer of foam to act as a decoupler, a 1/8" 1 lb. per square foot vinyl sound blocking material, an a 1" layer of foam for sound absorption. AlphaComposite™ Foam is a very versatile product. Various facings are available as well as various roll and sheet sizes all aimed at meeting your specific needs.

acoustical foam

 

Product Data
  • Weight: 1 1/4 - 1 1/2 lbs. per sqft.
  • Flame Spread: 95
  • Smoke Density: 340
  • Standard Sheet Size: 2' x 4'
  • Standard Roll Size: 54" x 50'
Options
  • Facings: Aluminized Mylar, Tuftane (Urethane), Perforated Vinyl, Tedlar
  • PSA: Peel & Stick Adhesive (Pressure Sensitive Adhesive) backing
  • Size: Material can be made in various sheet sizes as well as rolls
  • Thicknesses: Other foam thicknesses are available
Acoustical Performance
Sound Transmission Loss
Octave Band Frequencies (Hz)
Product 125
 250 500 1000 2000 4000 STC
AFBF-1 20 21 25 28 32 42 29
Acoustical Performance
Sound Absorption Data
Octave Band Frequencies (Hz)
Product 125
 250 500 1000 2000 4000 NRC
AFBF-1 .02 .31 .63 .94
 1.03 .90 .75