free shipping at parts express

Sonic Barrier 1/2" Acoustic Sound Damping Foam with PSA 18" x 24"

Brand:|Part # 260-520
The Sonic Barrier 1/2" acoustic damping foam is a precisely engineered material that offers optimum absorption for its thickness.
In Stock
List Price$13.99
Regular Price$9.97
You Save15%
Sale Price
Part # 260-520

Product Details

Sonic Barrier 1/2" Acoustic Sound Damping Foam with PSA 18" x 24"
The Sonic Barrier 1/2" acoustic damping foam is a precisely engineered material that offers optimum absorption for its thickness. The material features our exclusive embossed surface finish that helps to trap acoustic energy and improve high frequency performance. This finish is applied to an acoustic-grade open-cell polyether foam, which absorbs and converts the acoustic energy into low-level heat. A very aggressive pressure sensitive adhesive provides easy and permanent installation onto any surface. The Sonic Barrier 1/2" foam is excellent for use in small loudspeaker projects, where bulky damping materials are not feasible. The foam will help absorb unwanted sound from within the cabinet without disrupting airflow between the driver and port. This can reduce unwanted sound reflections and prevent them from exiting through the cone or port. In small enclosures, the foam can add a valuable increase in apparent volume, which can help to offset the space taken up by the driver itself or the port. Sold in 18" x 24" Sheets

Sonic Barrier 1/2" Acoustic Sound Damping Foam with PSA 18" x 24"
  • BrandSonic Barrier
  • Part Number260-520
  • UPC844632003172
  • Product CategoryCabinet Damping Material
  • Unit of MeasureEA
  • Product Rating
    (26 Reviews)
  • Weight0.4 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.


Sonic Barrier 1/2" Acoustic Sound Damping Foam with PSA 18" x 24"
Sonic Barrier 1/2" Acoustic Sound Damping Foam with PSA 18" x 24" is rated 4.3462 out of 5 by 26.
Rated 5 out of 5 by from Great damping foamI used this in a small single driver .04 cu. ft. speaker project. The glue was excellent and the sound is perfect. Highly recommend for such projects.
Date published: 2015-07-09
Rated 5 out of 5 by from resonance busterI got three sheets to do a set of home built 1.6 cu ft enclosures. this was my first serious project, but I chose to use 3/4" pine instead of mdf. the boxes sounded great except for a pronounced resonance at the frequency of male speech. adding these sheets to the inside surfaces took care of the problem completely.Easy to cut with sharp scissors or razor knife. Glue backing is tenacious, but workable, yes it can be repositioned, if you're careful and don't stick it down very hard initially. only con is the price, but the improvement in sound was worth it!
Date published: 2015-01-05
Rated 5 out of 5 by from Perfect!I used 1/2" Sonic Barrier to line the inside of my Fender Rumble 75 1x12 combo. It was pretty easy to cut and install. The results were exactly what I wanted. It really tightened up the bottom end and added focus to the low mids. The entire midrange exhibited a more solid punch. I am very pleased with the results.
Date published: 2014-11-08
Rated 5 out of 5 by from Great dampening materialI bought this to replace the old dampening material in a pair of Cerwin Vega speakers I was rebuilding. I lined all the walls with it and dampens the harmonics very well. This is great dampening material for vented or ported boxes. Very easy to use and cut. As noted in another post, the glue is sticky, so make sure you get it right the first time.
Date published: 2014-07-30
Rated 5 out of 5 by from Refoamed a guitar caseThis is perfect for replacing rotten foam in an old guitar case
Date published: 2014-07-02
Rated 5 out of 5 by from Speaker foamGood material. Easy to cut and easy to apply. The right amount of stick - can be repositioned if not completely rubbed down. One 18x24 piece will do a .5 cubic foot speaker.
Date published: 2014-01-23
  • 2016-02-12T06:27CST
  • bvseo_cps, prod_bvrr, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_26
  • loc_en_US, sid_260-520, PRD, sort_mostRecent
  • clientName_PartsExpressInternational

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email  for a prompt reply.
Sonic Barrier 1/2" Acoustic Sound Damping Foam with PSA 18" x 24"

Would there be any problem leaving the backing on and stapling or screwing the foam to the inside walls?

Asked by: ddddavid
There is no problem installing it this way.
Answered by: MattP
Date published: 2016-01-20

Does this come in any smaller width sizes than 1/2 inch?

Asked by: Manny H
1/2" is the smallest thickness we offer for this foam.
Answered by: MattP
Date published: 2016-01-05

Is there a rule-of-thumb for foam thickness? Next project will be 5.7 cu. ft., ported. How many sheets would be needed? Thanks.

Asked by: JW is the nickname
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-11-24

Is it moisture or waterproof and does it handle high temperature? I need to know if it will be suitable to be used in side car doors and dash.   

Asked by: Medo
This is open cell foam so it will hold water if it gets wet. It has been tested up to 140 degrees celcius.
Answered by: MattP
Date published: 2014-07-11

Is this flexible?

I plan to use this foam on my existing speakers. Will I be able to fold the sheet and push it through the 9" dia woofer cutout?
Asked by: hari
Yes of course you will. Think of this stuff like egg crate foam. It's essentially the same stuff, but flat and dark in color. You could probably even glue it into the corners without cutting to seperate it. If this foam does not give the desired effect, you can also add poly fill, like the stuffing in a plush couch or a pillow, and that will help regulate the output with the foam. Best of luck with your project!
Answered by: BigRich92
Date published: 2013-05-07

can i use this on the door to my kid's room?

he's in there bellowing at the top of his lungs (xbox live). the door is wood and I think the thin panels are transmitting a lot of noise. I was thinking of putting these in the panel insets - about .5" depth - and then maybe covering the whole door with mass-loaded vinyl. Any comments or suggestions? thanks - mom
Asked by: socalmom
Sure, you can put it on the door, but I'm betting that you're actually getting more sound coming through ducts and the walls than the door.Unless you're very careful with how you cut it, apply it... the stuff is not particularly pretty, and I would guess that your kid will probably end up sticking stuff in it or cutting tearing bits out. I bet it will end up more of a hassle than it's worth.
Answered by: Silverback
Date published: 2012-10-22
  • 2016-02-12T07:08CST
  • bvseo_cps, prod_bvqa, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_9
  • loc_en_US, sid_260-520, PRD, sort_recentQuestionsFirst
  • clientName_PartsExpressInternational
Parts Express FacebookParts Express TwitterParts Express YouTubeParts Express PinterestParts Express SpotifyParts Express Instagram
Live Chat Software