Acoustic Panels 12 pack Self-Adhesive 2"X12"X12" Quickly-Expand Foam

I looked at a lot of these products and chose this brand with their no headaches pitch expanding and applying these. Full body adhesive was a critical reason as well. I bought a 36 pack and only 2 had any type of issue expanding to a perfect from, and honestly, the only way to be absolutely sure they come in perfect form is to never compress them, and that just raises cost of packaging and shipping. The 2 that didn't snap to perfect form, we're just talking one edge being about 1/4" lower than perfect, so it is all perfect for my needs. They expanded fast, however, I let them sit out with only 3 high in each pile for 2 hours before I came back to look at them, so excellent score at easy expansion description. Adhesion is also a great score due to full body adhesive, however I am using them on a resin walled shed cleaned with 95% isopropyl alcohol, so the adhesive does not touch 100% of a surface to fully adhere. They are up and good so far, but I do not expect them to stay that way as the temperatures change. If they don't, I'll know exactly where they go and reapply using some car headliner spray glue, that will most assuredly keep them in place. For now, I'll hope to keep it mess free and see if they hold their place. I am using them to keep my CNC machine noise down a little for my neighbors since I don't have the room for an enclosure. These panels along with a different sound insulation product designed for cars, mostly applied to the doors of shed, they actually works well. I don't have any sound measurements, but my own hearing tells me it was all worth the $80 in materials as I like my neighbors, most of them anyway. I barely hear it 12ft away from shed and that's with the 16,000 rpm Dewalt router. With the 4 extra I had, I placed next to the 60db air compressor, if the adhesion works out, I'll buy some more and fill out that wall and those 2 sides of shed being covered will do a good job as there isn't anyone on the side of the other 2 walls. Turns out my work enabled me to seal up all the cracks that allowed air to come in (besides designed vents that I cover with removable material), so in winter, I'm already ahead of the game keeping the shed warm when heater is on. Best $80 and 2 hours work done to this shed yet.

These are great for that pro studio look and feel! These really do fully expand within a few mins like it says. Yes the adhesive backing does work beautifully with one catch, you have to read the one key instruction that says “clean the surface you’re sticking them on first.” I used Lysol Disinfectant Spray, let it dry for a few mins and I haven’t had any problems after a couple weeks of them being stuck to the wall. Before sticking them though, I used thumb tacks to place them on the wall in the design I wanted to make sure they would work in the area I wanted. The only con that you personally may have and it is not a con for me is: These do not do much in terms of sound dampening. They do a little and I can hear a mild difference but nothing that’s going to be useable for a live band or loud environment. For me, I knew these weren’t going to be that and I was okay with it for that’s not what I bought these for. I needed these for video content and over all atmosphere feel and these are excellent for that!

Finally found one that sells for a low amount of foam panels. (which is this one here) Been needing some for my room for recordings. They do arrive vacuum sealed, but they went back into shape once I cut open the plastic seal. Some say theirs remained flat, but that’s just me. No weird smell came out of those luckily. And foam quality is pretty good too. One tedious thing was removing the paper off from the adhesive before installing. But other than that, installing on my walls was a breeze. And a bit of a noise change after sticking them up.

It did the job pretty well. I would buy again, loved how easy it was to place and the hold is awesome so far.

Please do yourself a favor and look at my pics. It's not the foam, it's the sticky on the back. I was treating a little corner in an RV, so this is cabinet-quality wood and vinyl. I spent hours and hours getting this stuff off (Goo Gone and white vinegar, btw). Recommendation: Find some plain foam and use museum putty or tape, but not this stuff. Horrible.

These are thickest and most absorbent panels out of three different ones I tried. They took a while to puff up, I didn’t want to get them wet and ruin the adhesive, so I just waited, they took about a month to fully inflate, but when they did I was pleasantly surprised at how thick and high quality they were, they aren’t that soft flimsy foam, they’re very plush, more like memory foam. The purple is more like a pink, but it’s not an ugly pink. The adhesive is very strong, I accidentally folded one onto itself and could not pull it apart in one piece, so caution.

I have a small theater room and in the rear I have my racing sim setup. So I added these all over the rear of the room to cut down on sound bouncing around. Worked like a charm. These are super easy to install and they really do work on cutting out echos and sound that you don't want. Would recommend to anyone looking to control acoustics in their room. Update: I've purchased these a few times. The most recent order seems to have dropped in quality significantly. The adhesive on the back is very weak and doesn't cover the back of the panel. Causing them to fall off my wall. The panels are also cut improperly. So they don't line up properly. I'd be very cautious purchasing these with high expectations.

I purchased these panels to help deaden the sound from my air conditioning unit while sitting on the patio. There is a short fence with horizontal angled slats sitting next to the ac unit to block the view. These panels adhered to the slats without any issues and deadened the sound noticeably. They were easy to cut to fit with a decent pair of scissors and after pressing them firmly in place, I haven't had any fall off in the month or so that they've been there.