KILMAT 80 mil 36 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

I used this for sound deadening in a 1965 Mustang restoration. The sheets are somewhat compliant and very easy to install. I immediately notice the deadening effect as the metal drum effect at sheet metal panels was well damped. I have not run the car yet, so do not know about lasting adhesion, but it seems pretty tight.

I have a 2013 Mercedes C300 4MATIC. The only place on the vehicle where they do not add sound deadening insulation is in the trunk, where the spare tire lies. I decided to give this a shot because it had a 5 star review. Well, it did not let down! There is a noticeable difference in the road noise. I am very OCD about things, and this took care of all my worries. I utilized the 18sqft package, and had one mat left over. I did a full layer covering the entire spare tire well. It took about 2 hours, with the assistance of my wife. I would highly recommend getting the roller to get air bubbles out and to ensure proper adherence. Prior to installation I cleaned all surfaces with rubbing alcohol and ensured that all particles were swept out. I DID NOT utilize gloves, nor would I suggest it because they just get in the way. I took her for a drive down the interstate immediately following install, and all I can say is. WOW! Definitely worth the $50 bucks. Truthfully, it does not look all that bad, either. All of it is hidden under the spare tire carpet covering, so you have to lift that up before you even know that it is there.Thank you KILMAT!!!!

Great product easy to work with and install! Follow the directions and use the correct tools its a No Brainer

Im never 100% sure how well this stuff works, Ive purchased name brand and off brand and never felt like it was a night and day difference, but then again I rarely do a whole car in one go so its more of an incremental change. Does a great job taking buzzing and rattling out of panels for sure, and seems to somewhat improve bass clarity, but I dont know that it does much for road noise etc.

Awesome product. Installs very easy. Really made my cab quieter in my 99 7.3 Powerstroke. Tech tip leave it inside somewhere cool until install because it gets very mushy and messy when warm.

We ended up buying 6 boxes total of this and used on the inside of a Tahoe that is being restored

There are other similar products that may (or may not) work better at a greater expense. For my use case, with temperature variations and budget constraints, this was the best option. The only thing I might change would be getting thicker mat, but the sound suppression with this thickness is a dramatic improvement. My old F350 creaks and rattles still, but this sound mat keeps most of the noise from the cab and improves the quality of conversations I hold while driving. I would buy it again, and will, for any future vehicle of mine

I used this on the rear deck of a 2019 acura tlx with a kicker 8 inch sub driven by 200 watts rms. The metal was flexing very badly and the noise from vibration was horrendous. One layer of killmat completely silenced it.

The sound difference is minimal with only a single layer applied. I chose to add a second layer at every point where the base layer met and created a seam. That gives the rigidity I expect. This product does not reduce all sound. It simply adds rigidity to the sheet metal and stops rattles and tinny sounds. Adding a layer of acoustic foam padding under the carpet is still advised if total sound reduction is your goal. As measured with a caliper, the material is just over 2mm thick. 80mil = 2.2mm, so it is as thick as advertised. I still wish it was significantly thicker... It is about half as thick as the old factory stuff I peeled out of my truck. It is worth noting that I am working on a 97 F350 pickup. A modern car has considerably thinner metal and a single layer may work better on modern cars. There is a slight asphalt smell on the material. However, I have yet to notice it once installed. It just smells like fresh pavement out of the box. A handy tip, buy a cheap wooden spatula and use that for the initial fit before using a roller. It is much easier to manipulate into folds and reduce air bubbles. My advice, add an extra box to your order and plan to add a second layer at strategic points to achieve the result you desire. Otherwise, just pay the extra money and get a thicker product. But, for the price, adding a second layer is still probably the best value.

I installed this throughout my Montero Sport, mostly in the rear cargo area to quiet the many rattles that come from 200k+ miles of driving around Montana/PNW. I pulled off the interior trim panels and placed a layer on the inside of the exterior sheet metal fender panels, then a layer on the inner sheet metal panel that frames out the cargo area and the trim panels clip in to. I got about 70-75% coverage, mostly because I was being a little lazy and a bit rushed, but I also didnt want to interfere with any holes that were used for trim clips. Or run out of the 65sq/ft before ordering more. I feel like the 80mil material is heavy/dense enough that 100% coverage wouldnt really be necessary. I did do both front doors so far, along with most of the rear and there is definitely a difference. A lot of the rattles are completely gone, while the bigger, louder noises that came from offroad driving are considerably quietier. The loud banging from rocks getting thrown into the wheel wells is much less noticeable. The doors close with a much more solid sounding thud with no rattles then before. I have decent Rockford speakers in my doors but nothing loud enough to notice any sound quality differences as far as stereos and such are concerned. This product will probably stick to anything, but I strongly suggest giving the surface a wipe down if its dusty. Its repositional as long as youve only got a few square inches stuck down, any more than that and good luck. Cuts pretty easily with a utility knife on a scrap of OSB or something. Definitely worth the money and time invested to not hear everything rattle on long off-road trips.