Sonex® Pyramid Acoustic Foam

(2 customer reviews)


Size: 2' x 2'
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Sonex® Pyramid Acoustic Foam offers an angled panel design with significantly greater surface area than flat surfaces therefore maximizing the effective area for acoustical control. When installed the pattern provides a continuous, seamless appearance. As a Class 1 fire-rated foam that is 100% fiber-free, Sonex® Pyramid Acoustical Foam meets regulations for virtually any environment where maximum noise control is required.


  • Reduces echo and reverberation
  • Improves speech intelligibility
  • Exceptional acoustical performance
  • Mold-resistant, fire-retardant

Technical Information for Sonex® Pyramid Foam:

  • Size: 2′ x 2′
  • Thickness: 2″, 3″, 4″
  • Part Numbers: OPYR-2, OPYR-3, OPYR-4, OPYR-2HW, OPYR-3HW, OPYR-4HW
  • Material: Open-cell melamine-based foam
  • Finish: Natural Grey, Natural White, HPC Coated
  • Density: 0.5 to 0.7 lbs./cu. ft. (ASTM D3574-77)
  • Fire Rating: Class 1 per ASTM E84
  • Microbial Growth: Passes UL 181, section 11
  • Fungus Resistance Rating: #0 per ASTM G21
  • NRC: 2″ (0.70) 3″ (0.80), 4″ (0.95)
Sound Absorption (Hz) ASTM C423-90a
Natural Grey and Natural White
HPC Coated Colors

Installation Method:

  • These panels mount easily to any wall or ceiling surface with acouSTIC water-based 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.

For more information on our Sonex® Pyramid Acoustic Foam,
call us at 800.782.5742 or contact our sales department.

Customer Reviews

2 reviews for Sonex® Pyramid Acoustic Foam

  1. Verified Customer

    Nice product.

  2. Verified Customer

    Used to help quiet a conference room, they arrived the day after I ordered and worked great!