Dynamat Xtreme Sound Deadening Car Insulation Bulk Pack 10455 – Noise Dampening for Floor, Doors, Panels, Hood or Trunk – Easy Self Adhesive Install – Made in USA – 9 Sheets 18”x32”, 36 sq ft total

This is sort of the gold standard of sound deadening material. Sticks well, easy to cut, does a good job deadening sound.. I would buy again.

I agree with the others; anyone who doesn't like this product must have installed it wrong. I have a 2000 Honda CR-V SE. I lined the underside of the hood, the entire roof, all four doors (inside the doors and the surface), much of the floor, the spare tire well, the rear quarters (inside, behind the rear speakers) and lots of the tailgate with two (2x) Bulk Packs (9 sheets each.) I had not planned to line the roof, but after gutting the seats, all trim panels, and all the carpeting it seemed worthwhile. I cannot explain how differently the vehicle sounds now. EVERYONE compliments it (including my wife, who could not understand why I was spending the time and money on the project in the first place, but now wants me to Dynamat her Solara!) The doors go "kfump". Knocking on the hood, roof, or doors sounds like hitting a solid wood desk. There are NO vibrations or rattles in the car whatsoever (I also got some cheap self-adhesive felt sheets from a hobby store and lined the ashtray, glove box, and little change compartments. Now it's like driving around with ear muffs on. There is still some road noise, because I have pretty knobby tires, but the incredible thing is that I can no longer hear my exhaust from the rear of the car, and sometimes I'll look sideways and notice an 18 wheeler beside me that I did not even hear. When I pass vehicles going the opposite direction I am used to the "whee-owwww" as they go by, but now it is a "whiff", or just silent. Lining the roof made a huge difference when driving in the rain, but since the windshield is so noisy in a downpour the cabin is still pretty loud, but there is no "ratta-tat-tat" from the metal anymore at all. I bought a heat gun and the rubber Dynamat roller specifically for this project (though I'm sure I'll get plenty more use out of the heat gun). I agree with many of the other reviewers that if you do not press this stuff down in FIRM contact with your vehicle that you will not get the best results. I've done MUCH (much, much, much, much...) research on this and the bottom line is that this product is so effective because of "vibration damping", NOT sound blocking. If you hold a sheet up in midair between you and a speaker it will have no effect. If you glue it to the speaker you will virtually stop the sound. I can also go on about how AMAZINGLY different that my stereo sounds, but I think everyone else covered that. Yes; more mid-bass. Yes; you will hear things in your music that you never heard before. Something that surprised me though was how much quieter your music is OUTSIDE your car. I am not a loud person, and I always turn the volume down at stop lights, and in residential neighborhoods, but one time I stepped out of my car and left the stereo on at a pretty comfortable level. When I closed the door I could not hear it at all. Nothing. Nada. That was a nice bonus. This stuff is incredible when installed right. Amazon had the best prices in all my searches. You will ache, you will probably bleed, but a weekend or two of hard work should reward you for years. Enjoy!

2023 Camry Hybrid XLE (with JBL system). Had it done on the rear deck where the subwoofer is and all doors (100% coverage of inner skin only with also one piece placed on the outer skin right behind the speaker). My goal was to eliminate the rattling in the subwoofer area, enjoy the bass, and improve overall sound. Not only did I I accomplish that but also the noise from the outside can be heard much less while driving. Love it.

I did quite a bit of research before deciding on Dynamat. There are some cheaper competitors that people swear are just as good and they may be, but I just don't trust them as much. If you do your research you will even see that some people chose to use roofing material that you can buy at Home Depot. Someone would have to be OUT OF THEIR MIND to put $20 worth of roofing tar into a $20,000+ vehicle. The only negative thing people have to say about Dynamat is that it is priced high, but if you buy the bulk packs on Amazon you will save yourself a ton of money and is actually a pretty cost effective solution for DIY work. I have looked around and Amazon has the best price anywhere. Main competitors and my impressions of them. I have not purchased or used these product, but this is an idea of why I chose Dynamat over them. I am not a car audio professional by any means. This is the first time I used deadening on my car and I am writing this to help anyone else who is thinking of doing this. 1) RAAMAudio RAAMmat + Ensolite Foam - Most cost effective "legitimate" option. 2) Sound Deadener Showdown - "CDL Tiles" + Mass Loaded Vinyl. SDS would be an interesting choice. If you look through forums you will see some people who really like this stuff, but I found the website to be confusing and I could not truly make an informed decision one way or another. 3)Fatmat: Cheapest of all automotive dampeners, but one Google search of "fatmat smell" is all you need to know. Some say it smells awful and some don't, but there is no chance I risk it. This stuff is super cheap, does not deaden as well as competitors and stinks. I would use home depot roofing material before this product. Move on. And to the "REAL" competitor. 4) Second Skin Audio- Damplifier Pro + Closed Cell Foam (CCF)- Although I decided on dynamat, based on reviews and forum comments, I think that Second Skin Audios product line may in fact be superior to Dynamat, but I decided against it for a few reasons. Damplifier Pro is a good bit heavier than Dynamat extreme. For most, this isnt going to make a huge difference, but I am lining a performance car with more emphasis on performance than sound. I want an improved sound system, but if the increase in weight is only going to improve things very minimally it is just not worth it to me. A lot of people say that Dynamat is the most expensive, but a 36 sq. foot pack of Damplifier pro costs $204+ shipping. They do have some coupons occasionally, but it is more expensive. The fact is Dynamat is proven to work and is trusted by professionals. I do not think you can go wrong with Dynamat because the only bad thing people have to say about it is that the price is high which is a bit of a myth. If you drive a big truck or SUV, want the absolute best sound and aren't as concerned with weight, I would think about the 80sq foot Damplifier Pro shop pack and CCF foam. I turned my trunk into a enclosure with Dynamat Xtreme. I lined just about every surface, doubling up in a few critical areas and was able to line my trunk with this kit. If you want to really go out and line an entire car, you will need 100 sq ft+ of this stuff. If you are doing the trunk and doors like me, you'll need 50-80 sq feet depending on whether or not you plan to cover the entire door. I would use the bulk kit for anything but the doors. You can surely use the Dynamat in the bulk kit on the doors, but the door kit strips 12" x 36" and make for a cleaner install because they will run the full length of any door. It would not be the end of the world to have extra, but I would try to make a good estimate of how much you will need so that you arent leftover with a whole box of this stuff. One final recommendation as I try to unload all of the information I have learned. Dynamat claims that you do not need a heat gun to install Dynamat Extreme. That may be true, but after using a heat gun to put the finishing touches on the trunk, I would have to strongly recommend using a heat gun for trouble areas and difficult corners. I was able to put the Dynamat down so much flatter and nicer by heating it up a bit and rolling it down. it especially helps to heat corners and tight spots where you cannot get the roller in, because it makes it easier to mash the Dynamat down with your fingers. I am not going to use the heat gun on the doors however, as I believe that there are more heat sensitive components in there and do not want to chance it Dynamat claims it is not a necessity. I plan on using Dynaliner on top of the Dynamat in the doors (and trunk I think) as well as by itself in a few areas. I really hope this helps someone. If you have anything to say about my opinions, or would just like to comment on what I have done, please let me know.

As others has said, I bought to improve sound and road/car noise for my '01 Miata. Got the 9 pack here on Amazon and installed last night. I recently upgraded my stock radio with a new head unit, Alpines in the doors and a Bazooka in the trunk. 450 total watts total. Love the improvement... but with a roadster, noise is a killer, so I broke down after much research and bought the Dynamat pack. So I started on the trunk and lid, fully lined single layer, did the inside rear quarter panels too. Could immediately notice the trunk sounded tighter, less echo. Took 2 hours of effort, but I had to use 5 sheets (18x32) and used a lot more than I thought for such a small trunk. Moved on to the interior with what was left. Pulled passenger seat, carpet and tranny tunnel and used 3 more sheets on floor and behind seat. I figured at this point, doing each area fully and getting more product to finish was wiser than trying to conserve and not getting everything done. Well after 4 hours, I ran out, without getting doors or driver's side, but after a couple test drives am pretty pleased with the results! Can only imagine the improvement when my next pack arrives to finish what's left. Will probably do doors double layer, maybe under the hood if I have enough left. Trunk is very tight, quiet on the outside and no vibrations Everything you've probably read is exactly correct. Clean first, roll on tight, seal well. I used the roller and a small rubber mallet to press and seal, the mallet was a big help, with the long handle to reach tight spots and really press down the material. Messy, sharp and sweaty work.. all true. But the results are well worth it. My car is considerably quieter, the music tighter, even without it all completed. All told, a couple hundred will go into the effort, about 8 or so hours to complete. This product delivers what it says, I highly recommend it! Be sure and get enough when you order, it will probably take more than you think, you'll find areas you hadn't thought of to cover, sometimes you'll want to double it up. I'll be at nearly 700-800 sq ft of product on a small Miata, a truck or big SUV will surely take much more.

I used this on a newer Honda Accord. If you’ve ever driven in one you know how loud they are on the highway. I put this on the inside panel and outer panel of every door, the trunk, under the hood, the back dash, where the speakers are, and parts of the floor. I also used the dynaliner on the inside of the doors and where the interior panels connect to the doors. It made a decent amount of difference. Not sure if it was worth the money tho. The windows let in a lot of noise and you can’t do anything about it. If I was to do it again I would just do the doors and call it good. I also used the dynamat on the floors. Over all it does make a difference. When listening to music I’ve noticed I don’t have to turn it up as much as I used to. It is sticky and the metal is sharp, so make sure to use gloves. Also a tennis ball helps to roll the dynamat onto certain spots. I ended up buying the dynamat roller. It is labor intensive and over all took me about five or six days to complete. It does make it quieter, but I’ve found that I’m more aware of the other noises now.

Overall, I am very satisfied with Dynamat Extreme. My attempt was to quite the road noise in my Jeep Wrangler with 39” mud tires. After many wheeling trips having to wear hearing protection (especially driving back from Moab to the east coast) and trying to save what little hearing I have left, I decided to try Dynamat and reinstall the carpeting and see if the dB level goes down significantly, maybe even enough to be able to hear the radio and CB while moving at highway speeds. So far, I am impressed with the results. They are not spectacular but there was a lot of noise to knock down. For Jeep owners who might be considering buying Dynamat, here is what I did as an example. I pulled the floor mats and seats then installed it from the firewall back to the rear gate. I overlapped a bit on the firewall, tunnel, front floor boards, and rear fender wells, and also cut out around the drain plugs and taped them off. I reinstalled the factory carpet, front to rear, and will just deal with pulling it and spraying out the mud and dirt once in a while. I reinstalled the factory plastic pieces near the back of the gate (2015 Jeep) but I used a lot of scrap pieces to stick to the backside of the plastic to deaden the hollow, cheap sound. This actually worked really well! I have MOPAR half doors which sound pretty hollow, especially with the factory plastic interior pieces. I disassembled the doors and lined as much as I could on the outer skin of the door, then stuffed a lot of Pelican case pick and pull foam that I cut to fit snuggly inside the door, especially across the “safety bracing” inside the center of the door. After that, I lined the rest of the exposed metal areas of the inner door skin and also stuck the scrap pieces to the plastic interior piece, specifically around the handle area and in the lower section of the rear door panels (you’ll see what I mean when you disassemble the door). All of this on the doors made a dramatic change in the door clunkiness and made another significant change in the road noise level. Additionally, when I close the doors now it sounds way smoother and will make you question whether you closed it hard enough to latch shut. Knocking on the outside of the doors sounds much more dense. For a four door JK, I used two nine packs of 18”x32” Dynamat and two rolls of tape. I ran out of tape and used aluminum tape that one would use on an HVAC unit, I just cut the two-inch tape into one-inch wide strips to finish the job. As I mentioned earlier, I did overlap a little, but not very much so I would definitely suggest two boxes for a four door Jeep. As for the radio quality improvement (taking into consideration the NON-Alpine stereo and soft upper half doors) the stereo sounds surprisingly better while parked. The volume at 20 is clearer and louder than it was at 28 before. On the road doing 60 mph, I can actually hear the radio clearly at 18 and it sounds good at 22-24. Before installing the Dynamat, the volume at 22-24 was overpowered by the tire, wind, and road noise. We are going on a wheeling trip this weekend, so I am hoping that I will be able to hear my CB on the highway! In summary, I am satisfied with the results for my purpose. I have no doubt that someone with a normal car who is looking to quite road noise and improve stereo sound would be especially satisfied and impressed with the change.

I recently purchased the Dynamat 10455 18" x 32" x 0.067" Thick Self-Adhesive Sound Deadener Xtreme Bulk Pack, which includes 9 sheets in black, and I couldn't be happier with the results. First and foremost, the sound deadening capabilities of this product are exceptional. I used it to soundproof my car's interior, and the difference is night and day. Road noise, engine vibrations, and rattles have all been significantly reduced. The improvement in cabin acoustics is noticeable, making for a quieter and more comfortable driving experience. The self-adhesive backing on these sheets is a game-changer. It made installation a breeze. Simply peel and stick, and the sheets adhere firmly to the desired surface. The flexibility of the material allowed me to apply it to various contours and shapes within my vehicle, ensuring comprehensive coverage. The thickness of 0.067" is perfect for sound deadening without adding too much bulk. It effectively absorbs and dampens vibrations without taking up precious interior space. In terms of build quality, Dynamat is known for its durability, and these sheets are no exception. They feel solid and are clearly designed to last, even in challenging automotive environments. While this product is on the pricier side, the results are well worth the investment. If you're looking to enhance your car's audio quality, reduce road noise, and create a more serene driving environment, the Dynamat 10455 Self-Adhesive Sound Deadener Xtreme Bulk Pack is a highly effective and quality solution. I highly recommend it to anyone looking to upgrade their vehicle's soundproofing.

Graet Product Ever!!!!.....

Dopo tante ricerche ho deciso di scegliere questo prodotto per le ottime recensioni, e con l’acquisto del set da 9 foglii ed ho insonorizzato 4 sportelli dell’auto e mi sono avanzati 2 fogli. Il risultato di diminuzione del rumore è percettibile già ad orecchio, ma andrebbe verificato precisamente con un fonometro. Tuttavia l’acustica del suono degli speaker è migliorata tantissimo che già con gli altoparlanti di serie il risultato era nettamente superiore. La mia auto è di buona qualità e già abbastanza insonorizzata ma il miglioramento è evidente. Molte meno risonanze alle basse frequenze, un basso più nitido e corposo. Lo consiglio davvero, non avrei immaginato. La spesa è stata alta, ma ne è valsa la pena. Grazie Dynamat

I had never heard about this stuff: I have insulated doors & the boot floor of a Peugeot 107 & it makes a huge difference: It simply insulates your car, cutting out external sound that ruins your stereo listening & making all those rattly thin metal surfaces stop vibrating. It improves motorway driving by making the car quiet and far more relaxing to drive. It takes time to fit, is not cheap and does add weight to the car, but it really is worth it. Why pay for a louder stereo when this makes far more difference.

Producto top, caro pero impecable. Muy fácil de aplicar, se amolda muy bien.

Le da más solidez a la lamina, un poco complicado para instalar en partes curvas, pero en general muy bien