NVX Stealth Black SDBSK2 90 mil Thick 1.38 sqft. Car Sound Damping Mat, Butyl Automotive Sound Deadener, Audio Noise Vibration Insulation, and Dampening (Two 10" x 10" Pieces) - Speaker Kit

I have used different sound deadeners in the past, but this one seems to be very good quality. Thick aluminum foil on one side. Easy to cut with scissors or a razor blade. the paper backing stays on good and is fairly easy to remove. The adhesive sticks like crazy, especially if the temperature is warm and you use a roller while applying it. Be forewarned that if you need to remove a section after it has been installed and rolled out, good luck as it does not come off easy or in one piece. Once installed it makes a notable difference in sound and pretty much eliminates that tinny sound from door panels, body panels, and floorboard. Precautions to keep in mind: the foil is thick and can cut you easily, wear gloves! Make sure to cover all surfaces you are working around that you do not want ruined, if you get it on your upholstery or carpet, it will not come off (at least I have not found anything that successfully removes it without making things worse!) Great product, the only real negative I found is that NVX folds the larger pieces in the box for shipping, this leaves creases and can cause the protective wax backing to lift up around those creases.

Added to the doors and rear hatch of my 4Runner and it's really helped reduce cabin noise and improve the sound quality of the speakers. Doors feel more solid when they close. Less interior rattles. Highly recommend. Apply it in large sheets to outer door skins, the inner door skins, AND the inside of the plastic door panels for best effects. The NVX sound deadening products have tested the best of all of the more budget-friendly brands. Apparently the CLD butyl layer on this is the same as their standard CLD sheets.

as stated this is a fantastic product and the price is unbeatable! It is very dense for the thickness, conforms very easily (I recommend using a heat gun as you roll it for ease of install), very sticky and most of all it works! Installed in my 92 K1500 which was a complete rattle trap to say the least... The stereo would have everything in the truck flexing and rattling so bad I didnt even want to listen to it anymore... I applied to main problem areas (roof, inner door skins, rear wall of cab) and wow what a difference! Sounds so solid and very little exterior/road noise (and I have 3" exhaust and super 10 mufflers)... Will soon be re-installing the stereo equipment so I will update my review to let it be known the improvement there

I ordered these sheets specifically to cover my exposed tailgate of my Jeep jk to prevent rattling from my subs, when I got them I then realized they were folded twice and were all wrinkled up. I ended up working around the wrinkles by cutting them off. Doesn’t look great but looks ok. Ended up using the rest in the floorboards. For the price I would recommend using something different, if Kilmat would come in black I would’ve used it but it doesn’t. I used kilmat throughout the rest of my Jeep and seems to work good for a third of the price of this, their product also comes in smaller sheets and aren’t all scratched up and wrinkled which won’t matter if you’re putting it under carpet. I did reach out to nvs and they ended up sending me 10% back but still not worth the price difference to me.

Very happy with this stuff. So far I have only used it on my two front door but the results are outstanding. Very easy to cut with a utility knife, sticks very well and folds around bends and corners of sheet metal much easier than I was expecting. I used two layers on the outside door and 3 layers behind the speakers with a foam pad on top to absorb back waves. Then i put it on the inner door and sealed off all of the holes including the massive hole that the manufacturer leave to service the window mechanism...hope i don't ever have to get back in there lol... I tapped on the outside of the door and then the other side that wasn't treated yet and the difference in resonance and vibration was substantial. I also gained a SIGNIFICANT amount of midbass from my Focal 165 k2 speakers. Also big difference in road noise. Still have plently left over to do the trunk when I get some more time. I'll be using NVX sound deadening in all installs I ever do from now on. Do not spend thousands on great speakers, amps, processing,.etc. without proper sound deadening and install. Excellent quality at a great value

I've purchased and used the WEIZE cheapo stuff, the 120ml is okay, 80 and 50, no bueno. Once applied, had to go back and hit the edges and in some situations, tack it down and it still pulled up around the edges later, mine did anyway. I prep the surfaces and warm the sections in the sun or the oven prior to getting to where you want it, it still, seems to be inexpensive for a reason.This NVX, very surprised. Thick, pliable, easy to cut, applied the same way, and no issues. Just did an entire car interior with it, definitely recommend it!

Helps with sound deadening a lot. Easy to work with and plenty sticky.

These are good but you have to cut out specific spots to get fully black. And a little tip to the manufacturer, if you're going to call your sound damping mat "stealth" then don't plaster your logo all over it. Personally I'd prefer pitch black with no logos. It's supposed to be inconspicuous, not a focal point for your advertising, completely defeats the purpose of being stealth. Most annoying of all, if it gets scratched or bent it turns shinny silver right under, also turning it into somewhat of a focal point. So a lot of the product was outright unusable because either their stupid logo was everywhere and would draw attention to the "stealthed" out area being dampened, or shinny spots from being bent or accidentally scratched in some way. Luckily the spot I needed to dampen was hidden way up in area under the gas flap to stop the door from making a spring sound when closed, so product did work and there was enough to truly be stealth in my case.