Sonicism 12 Pack Pyramid Sound Proof Foam Panels with Self-Adhesive, 12" X 12" X 1" Acoustic Foam Panels of High Density, Soundproof Wall Panels Fast Expand, Sound Absorption and Decoration (Black)

I used these to reduce sound from the engine compartment on my boat. Easy to cut and easy to place. I did use spray adhesive as it gets hot but I may not have needed to as the adhesive on these is very strong. End result was terrific. Before, hard to talk over the noise. After, easy to have a conversation. Highly recommend.

Overall we were happy with the product as we bought enough to help soundproof a 10x12 room that we built for shooting video content for digital media. Out of all of the panels we purchased, we had 3 or so that after time didn't adhere, but it could have been due to the humidity in the room since it's been a 100+ weather here in Texas for the past 3-4 weeks now. They provide a good adhesive tape with the product in case you have a panel or so that doesn't stick. Other than that, it is a really great quality product, and one we would recommend to those who are looking for noise cancelling/absorption for a space they are trying to soundproof.

These Sculptured Closed cell Foam pads are good for reducing high frequency sounds. The self adhesive makes this "kit" of panels easy to insyall.

Product works as intended, but cosmetically a third of the squares had permanent damage due to packing issues. Ass been in pics above, some squares were smashed and deformed. After giving them days to expand and form, nothing changed. 1/3 of the first package I received were like this. Adhesive is strong. Dampens sound very well. It's a hit or miss on the quality tho.

Bought these to sound insulate the ac unit in a closet. Were easy to cut and stick to the walls and the vast majority have held... a few needed to be pressed in place later. Sound wise, using a decibel meter, they made a pretty decent difference in the sound coming out of the closet.

This product is trash! DO NOT BUY THIS! The glue is to adhesive! The worst buy ever!

Used these to soundproof an Iso-cab. Granted I had to use a staple gun to mount the sound proofing inside the iso-cab. But they worked perfect. Before sound proofing the room Db was at 85 After adding the sound proofing inside and fully covering the outside with the sound proofing then covering those with the Amazon moving blankets 1 layer as a outer covering. Room Db dropped to 32db Im am running a 50watt tube amp at about 30% VOL. its very quiet!

In the past I've mostly stuck, no pun intended, to typical mounting squares from your everyday and obvious brands. While they definitely "work", they often have to be replaced every so often. Oh and when that needs to happen they rip off everything about the wall. Thankfully with these so far, I'm incredibly satisfied. The adhesive seems stronger than my typical purchases, but I also wanted to test removing them after a few months from the wall to see what would happen. Thankfully, no paint ripped and wall completely in tact. It did take a little bit to slowly work the pad off the wall, but if that little extra effort means not needing to spackle and repaint, I'm all for it. Definitely satisfied.