Sonex® Classic Foam

(11 customer reviews)


Manufacturer: Pinta Acoustic
Size: 2' x 4'
Thickness: 2"
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Estimated Shipping Lead Time: 3-7 weeks; please call and speak with a Sales Representative for specific project lead time evaluation.

Sonex® Classic Foam is an extremely popular foam because of its design, acoustical effectiveness and economical price point. Sonex® Classic Acoustic Foam features a modified anechoic wedge design for cost-effective and impressive sound control.

The unique geometric shape of the surface pattern on these panels provides optimum absorption and deflection of sound energy, making them an excellent choice for recording and broadcast studios. These versatile panels can also be used in listening rooms, restaurants, production areas and other locations where sound absorption is critically important.

Sonex® Classic is available in natural white and grey melamine foam colors or HPC coated colors. These panels can easily be mounted to any wall or ceiling surface with acouSTIC water-based adhesive.


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

Technical Information for Sonex® Classic Foam:

  • Size: 2′ x 4′ (8 sheets per box)
  • Thickness: 2″
  • Coverage: 64 square feet per box
  • Part Numbers: SOC-2, SOC-2HW, COC-2
  • Material: Open-cell melamine-based foam
  • Pattern: Sonex® Mating parquet
  • 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 Per ASTM C423-90a
    • Natural (Grey/White): 0.80 (Mounting Type A)
    • HPC Coated Colors: 0.95 (Mounting Type B)
Sound Absorption (Hz) ASTM C423-90a
Thickness 125 250 500 1000 2000 4000 NRC
Natural Grey and Natural White
2″ 0.05 0.31 0.81 1.01 0.99 0.95 0.80
HPC Coated Colors
2″ 0.13 0.41 1.02 1.18 1.18 1.13 0.95

Installation Method:

  • Easily mount these panels 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.

PLEASE NOTE: Half of the panels per box have a positive pattern and half have a negative pattern, as the panels are meant to be installed alternating the patterns. Please layout your design and make necessary design changes prior to installation.

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

Customer Reviews

11 reviews for Sonex® Classic Foam

  1. Shade Construction Company

    Easy to get

  2. Flimner

    These panels are industry standard and mandatory for any serious studio setup.

  3. John WCarmichael

    Wow The 2 x 4 x 2 inch Sonex Classic Foam are a Awesome solution for my 18 x 12 Audio Room, it made a difference,

    Acoustic solution

  4. Lucian

    These are outstanding!!! I want to do a promotional deal with this company. Please email me!

  5. Eventbrite

    Second time I have purchased this product. Serves its purpose


    well made and inexpensive way to treat a boomey room.

  7. Verified Customer

    Sound Proofing.

  8. Verified Customer

    Absorption in home listening room.

  9. Verified Customer

    We put the product up in the gym, which doubles as an auditorium. It has done a great job reducing the echo, although I suspect we need to put more panels up to reduce it further. We have also discovered that curious children's hands can easily damage these foam panels; we mounted them 6 ft off the floor (we are a K-8 girls' school, who thought they can reach that high?) but the damage is minimal, only at the bottom couple inches of a few panels.

  10. Verified Customer

    While this product is nowhere as durable as the original product that we used for nearly 20 years, it does the job well.

  11. Verified Customer

    fast shipping, product exactly as promised