AlphaSorb® Flat Foam

(3 customer reviews)


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Our AlphaSorb® Flat Foam provides acoustic absorption for applications seeking a flat, smooth appearance with no pattern. AlphaSorb® Flat Foam is available in in a range of sizes and thicknesses. Consisting of a lightweight, acoustical foam core, these panels are for use in just about any direct mount wall or ceiling applications. Flat acoustic foam is a great choice for projects that require form fitting absorption. Its melamine acoustic foam core trims easily using a smooth blade utility knife and installs with a foam construction adhesive.

AlphaSorb® Flat Foam delivers a versatile foam panel for use in open offices, recording studios, lobbies, as well as in tougher industrial applications. The fiber-free core makes this an excellent acoustical substrate to absorb sound in a multitude of systems, including fabric track stretch wall systems. There is no itchy fiberglass to cut or clean up. Similarly, use AlphaSorb® Flat Acoustic Foam to line noisy enclosures like HVAC ducting, speaker boxes or machine housings. Additionally, you can create interesting dimensional patterns by utilizing the various thicknesses of this foam.


  • Industrial & OEM
  • Automotive & Aerospace
  • HVAC ducting applications
  • Offices, fitness, lobbies & more
  • Great for direct to roof deck application
  • Great for use as HVAC duct liner to reduce noise


  • Reduces echo and reverberation
  • Easy to cut and install
  • Exceptional acoustical performance
  • Design friendly smooth appearance
  • Fiber-free, Mold-resistant, fire-retardant

Technical Information:

  • Size:
    • Standard: 2′ x 2′, 2′ x 4′
    • Special Order: 4′ x 4′, 4′ x 8′ or custom
  • Thickness: 1/2″, 1″, 1-1/2″, 2″, 3″
  • Material: Open-cell melamine-based foam
  • Intended Use: Interior, sound absorption
  • Finish:
    • Natural Grey
    • Natural White
    • Coated (Custom Order, please call)
  • Density:
    • Natural Grey: 0.56 +/- 0.09 lb / sq ft
    • Natural White: 0.47 +/- 0.13 lb / sq ft
  • Service Temperature: -40 deg. F to 350 deg. F
  • Fire Rating: Class 1 or A per ASTM E84
  • NRC: 0.65 – 1.05
Sound Absorption (Hz)

Installation Method:

  • These panels can easily mount to any wall or ceiling surface with water-based construction adhesive
  • For best results, install this product at the end of your construction project.
  • Use clean gloves to prevent soiling material.
  • Melamine foam is fragile, please handle with care.
  • Do not install material of unacceptable quality.
  • Maintain uniform temperature of prior to, during and after installation.

For more information on our AlphaSorb® Flat Foam,
call us at 800.782.5742 or contact our sales department.

Customer Reviews

3 reviews for AlphaSorb® Flat Foam

  1. NOE Bullet Moulds

    works great

  2. James Kerr

    easy to install, clean look, very efficient sound proofing. I intend to buy more.

  3. Verified Customer

    I used this as a sound dampening barrier around an aluminum saw by sandwiching it between formed pieces of 14 ga. stainless steel and completely enclosing the saw. The foam worked great and is of a good quality.