2 Pack High Density Self-Adhesive Sound Insulation Acoustic Closed Cell Foam, 0.4" x 12" x 71", 10 mm Thick,11.6 sqft Sound Proof Padding,Fire,Water Resistant Acoustic Treatment Foam

This was a lifesaver for my office at work. When the offices were built, the wall did not go all the way to the window, which meant I got to hear everything my coworkers next door were talking about, vice versa. I purchased this and it improved immensely. I do recommend you buy 2 to help with the sound going as well as the sound coming. It is a great value for the money, and I highly recommend it and will be purchasing more, seeing that I have moved offices since, so I need to finish the office I am currently in. Lastly, it was easy to install, adheres perfectly, and it is the perfect thickness for a soundproof barrier. I highly recommend!

Worked very well for sound insulation on the interior side of my side by side roof. Effective on sound bounce. I'm sure it will work for stopping heat radiation this summer.

small really has to buy a lot so that it can isolate the sound

Purchased this for sound equipment, once applied, it shrunk. Very adhesive though, which is nice but just wish it stayed in place.

It’s super sticky! It’s thick foam like and will absorb a lot of sound I hope!

Trash! Lasted 2 days then they all started peeling and falling off. The back of the pads barely even had any stick adhesive left so couldn’t even put back up. DO NOT WASTE YOUR MONEY!!!

This high-density acoustic foam works amazingly well for soundproofing and insulation The closed-cell design blocks out noise effectively, making it perfect for home studios, offices, and even automotive applications The self-adhesive backing is strong and sticks securely to different surfaces without peelingThe 0.4-inch thickness provides great coverage, and the material is fire and water-resistant, making it durable for long-term use It is also easy to cut and shape, allowing for a custom fit in tight spacesThis product offers great value for money excellent functionality and is easy to use If you need high-quality soundproofing foam that is durable and effective, this is a fantastic choice Highly recommend

I bought these to put on the back of my front door in my condo. There are only a few units in my building and most of my neighbors are single adults, so it’s pretty quiet most of the time. And inside the units you barely notice other people live in the same building.. the problem isn’t being bothered by others noises, it’s that the front doors are like an open window to the hallways and as soon as you open and walk in the very front door of our building, you can hear everything if anything is going on inside a units. The sounds travels crystal clear even if you have tv or music playing at a low volume. It broadcasts your words .. so any one in the hallway can hear every bit of your private conversations.. it’s So quite inside the units, it’s easy to forget how easy the noise travels through the hallway, untilYou’re in the hallway and the neighbor is home just existing and you hear every little sound to remind you.I bought these thinking it would be a great idea to cover my door completely with the pads to block some of the noises from going into the hallway…. Well the 2 rolls weren’t enough to cover the entire door. Had To order another role. Then not even a week later our dog ripped up the entire bottom Half of the padding off… we started putting a Baby gate to keep him away from the front door if we left. Ordered more roll. reapplied more padding….It doesn’t keep any of the sound inside … IWent downstairs to get the mailAnd I could hear the tv. I left my phone playing a video and walked back in the hall, completely closed the door and had a door sweep installed… I hear it all. Perfectly.. it didn’t block any of the noise. Not one bit…This whole experiment was a complete waste of money and didn’t help fix my problem.. I wouldn’t buy any more of this for sound proofing purposes.