Udderly Quiet™ Class A™ Anechoic Acoustic Foam 4″ White (Case of 4)

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Udderly Quiet™ Class A™ Anechoic Acoustic Foam 4″ White (Case of 4)


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Weight 16 lbs
Dimensions 2 ft. x 4 ft.
Thickness 4 in.
Coverage 32 sqft. (8 sqft./sheet)
Quantity Case of 4
NRC Rating 1.25
Fire Rating Class A™
Color White
Availability Usually ships in 7-14 business days


You know you need serious soundproofing power in an acoustic foam panel for your recording studio, theater, auditorium, classroom or other sound-sensitive environment. The problem is that you are located in a facility where fire hazards abound and building fire codes for exposed materials are strict. What can you do?

Our Udderly Quiet™ Class A™ 4” White Anechoic Acoustic Foam is as much sound absorbing power as we can give you in a flame-resistant foam panel. Each case contains four 2’ x 4’ panels of four-inch thick open-celled acoustic melamine. Our open celled acoustic melamine delivers a Nose Reduction Coefficient comparable to our polyurethane foam but has much greater fire and heat resistance.

This product offers heat resistance up to 482 degrees Fahrenheit and can stand regular temperatures of 320 degrees Fahrenheit. It is not likely to combust when struck by random sparks and can meet building fire codes that require exposed materials to be Class A-rated. At the same time, this foam will gobble up all that unwanted bass, echo and other harsh sounds that are interfering with your recordings, conversations or presentations.

These bright white panels cover 32 square feet with each case with an aesthetically pleasing 3D double-convoluted pattern that fits into the environment while protecting you from harsh sound. They are simple to install, requiring only a tape measure, level, pencil and construction adhesive. You can soundproof an entire room with these panels in a matter of hours.

These are durable, reliable anechoic foam panels made in the U.S.A. and built to last. You are sure to be impressed with the dramatic improvement in sound quality you experience when these panels are in place. Each is a consistent density, so you will enjoy the same clean sound throughout the entire room.

Don’t deny your theater, studio, gym, office, school, auditorium or other facility the soundproofing it requires because you are concerned about building fire safety codes. Find your solution by ordering your cases of Udderly Quiet™ Class A™ 4” White Anechoic Acoustic Foam now.


Engineered for performance — The Anechoic pattern was designed to increase surface area, ultimately increasing the acoustic performance. Udderly Quiet™ Class A™ Anechoic acoustic Foam absorbs sound generated at low, mid and high frequencies and have an equal to or higher Noise Reduction Coefficient (NRC) then polyurethane anechoic products.

Quality — Udderly Quiet™ Class A™ Anechoic Acoustic Foams are made with high quality melamine foam. This foam is consistent in density and firmness so acoustic performance will also be consistent.

Ease of Installation — Udderly Quiet™ Class A™ Anechoic Acoustic Foams are light weight and can be attached to a variety of surfaces. No special tools or materials are needed.

Personalization — Udderly Quiet™ Class A™ Anechoic Acoustic Foams are available in bright white and light gray.

Architectural Interest — The 3D, double convoluted pattern of the Udderly Quiet™ Class A™ Anechoic Acoustic Foams creates a visually unique environment.

Flammability — Udderly Quiet™ Class A™ Anechoic Acoustic Foams are manufactured from melamine foam that has a Class A™ flammability rating. This product passes most building code flammability requirements for exposed materials.

Not just for Professional Studios — Udderly Quiet™ Class A™ Anechoic Acoustic Foams can be used almost anywhere reverberation (echo) is an issue and heat or potential sparks are a concern. This product is heat resistant to 482º F and is able to withstand constant temperatures up to 320º F.

Product Availability


  • 24 in. x 48 in.
  • 48 in. x 48 in.
  • 48 in. x 96 in.

Need a thickness or size not listed above? Custom thicknesses and sizes are available, please call 1-866-949-9COW for details.



  • Auditoriums
  • Broadcast studios
  • Clean Rooms
  • Computer
  • Equipment Enclosures
  • Equipment Rooms
  • Gymnasiums
  • Gun Ranges
  • Home Recording Studios
  • Home Theaters
  • Industrial Facilities
  • Medical Facilities
  • Professional Theaters
  • Professional Recording Studios
  • Warehousing facilities


FREQUENCY 125 250 500 1K 2K 4K NRC*
4 INCH .33 1.12 1.32 1.39 1.19 1.12 1.25

* NRC = noise reduction coefficient

Customer Reviews

Average Customer Ratings: 4.8 (34 reviews)

The times I talked with you on the telephone and corresponded through email you have been very helpful and efficient. I would highly recommend Soundproofcow.com to anyone!

– S. Cimino, PA

I have emailed a lot of different manufactures and I have to say your customer service is head and shoulders above all of them. I emailed your company at about 9pm my time and when I woke up the next morning you had already answered my question and then the follow up was a few hours later. I am impressed. Thanks a lot for the quick turn around!

– E. Gustafson, NV

I just wanted to send a quick thank you for your rapid response and helpfulness. I very much appreciated it. You have been responsive in every way all through the process. It has been a pleasure doing business with you and your company.

– T. Alexander, CA

I just wanted to let you know that in the end, sealing the air spaces on this door worked just fine and took care of the problem.

I really appreciate you taking so much time to share your expertise with me, and in particular recommending I try the simpler solution before investing in more expensive noise barriers. That is a big credit to you and your business.

– Mike

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