Quiet Barrier® Specialty Composite w/PSA

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Quiet Barrier® Specialty Composite w/PSA

Quiet Barrier® Specialty Composite is our four-layer soundproof barrier composite that is engineered to prohibit loud sounds around heavy machinery. This durable soundproofing solution offers exceptional heat and tear resistance, making it ideal even in construction, marine or manufacturing environments. With peel-and-stick adhesive backing, installing this soundproof barrier is incredibly easy.

This product is no longer available in the State of California. Please contact us for approved solutions. 1-866-949-9269

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Original price was: $209.99.Current price is: $199.99.

14 in stock

Usually ships in 1-3 business days

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Weight 30 lbs
Dimensions 4 ft. x 4.5 ft.
Thickness 1 5/16 in.
Weight 18 lbs.
Coverage 18 sqft.
Quantity 1 Sheet
STC Rating 24
NRC Rating .7
Availability Usually ships in 1-3 business days

Features of Our Soundproofing Composite

Our specialty soundproofing composite is designed with multiple layers of materials for reducing low, mid and high frequencies and improving sound energy control:

  • An easy-to-clean, fiber-reinforced polyester film
  • An acoustic foam
  • Our Quiet Barrier® LD solution
  • A decoupling foam to separate materials from the mounting surface

Quiet Barrier® Specialty Composite comes in a variety of sizes and configurations. Custom shapes, sizes and profiles can be designed upon request. For minimum order quantities, contact our Acoustic Consultants for more information!

How Quiet Barrier® Specialty Composite Works

Our Quiet Barrier® Specialty Composite products work by blocking noise from the source and preventing sound from traveling from one area to the next. The polyester film reflects high frequencies, while the thicker acoustic foam helps absorb some of the sound, decreasing ambient reflected noise.

Any sound penetrating the acoustic foam layer is blocked and reflected into the room by the decoupled barrier layer. This thinner layer of acoustic foam structurally isolates the heavy barrier layer to enhance sound-blocking performance.

Applications of Our Soundproofing Composite

Our Quiet Barrier® Specialty Composite products can be used in virtually any environment that requires robust sound barriers, including:

  • Marine industries
  • Construction
  • Warehouses
  • Automotive plants
  • Offices
  • Areas with heavy machinery use

Easy Installation With Peel-and-Stick Backing

Our easy-to-install soundproof barrier features pressure-sensitive adhesive (PSA). This peel-and-stick backing material is a flexible tape that makes installation a breeze. All you need to do is peel off the protective silicone film backing and stick it into place. Our Quiet Barrier® Specialty Composite with PSA is both convenient and durable. The best part is it can fit practically anywhere. Once installed, you’ll notice the immediate effects of its sound-blocking power.

Request a Quote

We encourage you to request a free estimate for your project so our technical sales representatives can assist you with a soundproof analysis for your space.



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* This product is not eligible for promotional offers.

This product is no longer available in the State of California. Please contact us for approved solutions. 1-866-949-9269



Triple Soundproofing Function — The mass of the Quiet Barrier® layer blocks sound while its flexible nature dampens sound energy. The thicker of the two layers of Acoustic foam acts as a sound absorber, decreasing ambient reflected noise. The thinner layer of acoustic foam acts as a decoupler, structurally isolating the heavy barrier layer from the construction assembly, ultimately decreasing vibration and increasing the sound blocking performance.

Heat Resistant — Quiet Barrier® Specialty Composite has a fiber-reinforced Polyester Film facing that not only reflects high frequencies but also reflects heat back towards the source. This product is our best performing sound blocking material in exposed locations with above-average temperatures.

Durable — The Polyester Film facing provides a cleanable, tear-resistant surface for applications that may come in contact with oils or grease. Once punctured, the embedded fibers will prevent additional tearing or damage. The acoustic foam and barrier layers are thermally bonded, providing a much stronger, longer-lasting bond over traditional adhesives.

Low Profile — Quiet Barrier® Specialty Composite has a thickness of 1 1/4 inch, saving valuable square footage. Quiet Barrier® Specialty Composite is used in many equipment enclosures where space is tight.

Ease of Installation — Quiet Barrier® soundproofing composite is available with an optional “peel and stick” pressure-sensitive adhesive (PSA). Simply peel the silicone coated paper backing and place the product where it is needed.

In-stock — We stock a large amount of Quiet Barrier® Specialty Composite in all advertised sizes and configurations. Most products are shipped the same day they are ordered and arrive at your project in three business days.

Customization — We will create a custom Quiet Barrier® Specialty Composite for your application. Custom profiles, shapes and sizes can be quoted upon request. For custom Quiet Barrier® Specialty Composites there are minimum order quantities, please contact our Acoustic Consultants for more information!

Flammability — Quiet Barrier® Specialty Composite contains polyurethane foam that has a flammability rating of UL94 HF-1. Before choosing this product, be sure the flammability rating passes your local building code for exposed materials.

Sound Test

See how our Quiet Barrier® Specialty Composite produced great results for a happy customer!

Product Availability

Also available in Quiet Barrier® Specialty Composite

Special Order Sizes and Thicknesses are available.

For details, call 1-866-949-9COW.


Construction Industry:

  • Air Conditioning Unit Enclosures
  • Computer and Server Rooms
  • Compressor Enclosures
  • Equipment Rooms and Enclosures
  • Generator Enclosures
  • HVAC Cabinets
  • Industrial Facilities

Automotive Industry:

  • Hood and Trunk Liners in Automobiles

Heavy Equipment Industry:

  • Engine Compartment liners
  • Cab Liners
  • Floor liners
  • Hood and Trunk Liners

Marine Industry:

  • Engine Compartment liners
  • Hatch Cover liners
  • Hull Liners


Polyurethane Foam Warning

All Polyurethane Foams, including Combustion Modified Foams, will burn. Do not expose to any flame source. Once ignited, they can produce rapid flame spread, intense heat, dense smoke and toxic gases causing death. Warnings should be given to your employees and or customers. Test data does not necessarily reflect a foams performance under actual fire conditions. Before purchasing any foam, be sure to check with your local code officials to confirm the required flammability rating of exposed materials for your area.

Cautions and Limitations

Before applying this product all surfaces must be dry and clean, free of any grease or oil.

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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If you need a quote quickly and would rather talk to a warm body, then dial 1-866-949-9269. No pushy sales guys…promise.

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