uxcell 197mil 6.46sqft Car Truck Cell Foam 5mm Sound Proofing Insulation Noise Control Deadener Mat 40"x24"

One other review said that this product was not for use under the hood, but that was one of the key factors in my choice. I looked quite extensively and I kept finding this product on several different sites. The spec sheet says it will work under the hood, and it's a small repair to the firewall, and it has held up.It covers a small hole caused by rodents. I have another larger hole that I will also post once I get that repaired. Start small...So far so good with this small repair. This product WILL WORK under the hood!!

DON'T BE LIKE ME! I installed this on the floor of my Tahoe and ran 12v turn on wire to my amplifier wire across it. Long story short, the 12v wire got so hot it melted the rubber and started smoking. It almost resulted in a fire. Stick with foil based sound deadening where you run your wires for this reason. This would be good for the rear of the car.

Good isolation & sticks on surfaces. Definitely good purchase, needed it for my car engine isolation.

Not durable. As others have said, it is damaged extremely easily, but does conform well. If that will work for you, it is ok. I needed black, so I got this instead of aluminum. It is badly creased too. If there was a similar foam with a stiff, durable foam surface (like you find in some packaging, but with an adhesive backing), it would sell very well. I used it for hood insulation, we'll see how it goes. To install, only peel back an inch at a time, and press in place, pull a little more backing, repeat until done. Disappointed that it is so weak, should have read the reviews first.

Fiberglass on the front of the motor home would drip on the dash when it was below freezing. I sprayed water on it to know that it wasn't a leak. It wasn't so that indicates that it was an insulation problem. Warm air holds more humidity(water) than cold air, therefore when air cools down moisture forms on the surface of the material that has two different temperature on it's opposite sides. Insulation changes (slowes) the difference of tempature to the other. Glass is an example of a poor insulator.

This review is for a first timer using this foam material but not a newbie in putting a sound deadener with the usual aluminum layer. 1) Don’t make the mistake of peeling the paper all at once from the adhesive when working on a big area. Once that adhesive stick to any surface it will more likely peel the foam being so thin. 2) Worse, if the adhesive stick to itself, forget it, if you’re a perfectionist you’ll more likely to start back so many times if you make that mistake coz once you try to peel it off from itself it will rip that foam easy! 3) It also doesn’t make a reasonable stretch to adhere to a curved surface specially a corner. 4) if you force or use a roller or even just your hands/fingers to flatten it to the surface you’d end up ripping again the foam or leave an air bubble underneath! 5) Since I layered this to my spare tire/trunk cabin floor when you strike at the metal it does not produce that solid dull sound, so I really don’t expect a good deadening effect from it. 6) Since I ordered the 50+ square foot mat, I will more likely not use the rest of it to my doors or even my car cabin’s floor. The more I will use it from this point it will more likely just give me more disappointments! It’s such a waste of my money. Just settle for the ones with the aluminum layer and pay the extra premium for quality. I will ask if I can return the rest and get a partial refund for the material used coz more likely if I now start to peel it off, I would expect residues of adhesive and foam will stay and make removing it a challenge in itself! This is why I gave it a 5 Star for ADHESION, coz that will be the undoing of this product.

Sticks well, easy to manipulate, no real measurements but my ear test says it cuts down on vibration noises in the door. Would definitely use again, price is solid.

I expected for this to come in a roll as in pictures. But it came in folded up like a blanket. Just makes it a little harder to use now but will manage.