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

Before purchasing, I researched several manufacturers of Sound Deadening material. I drive a truck with off-road tires and enjoy quality sound from my radio without road noise interference. All of the leading manufacturers of sound deadening material use butyl rubber in various thicknesses. I bought the .80 ml thickness from Kilmat because of the positive reviews and the price. I installed the Kilmat material in all four doors and on the back firewall. While I don’t have a decibel meter to provide firm data, the decrease in road and tire noise after installation was noticeable and, in fact, I would say surprising and significant. I definitely enjoy driving on the highway more in a quiet vehicle. My guess is that it decreased road noise level by 30% or perhaps more. The key is to buy enough material to line the “inside” metal skin of your “outer” door as shown in the photos. In summary, the purchase was well worth the effort and cost.

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

Easy to Use.

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.

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.

OK, first of all Ive been professionally taking cars apart and putting them back together for the last 7 years as an autobody/refinish tech. You see some cars with little to no sound deadner and some higher end cars with lots of it. Eventually you come to see/hear/feel the difference this stuff actually makes for cars that didnt have it at all or have very much of it. Weve always used the 3M sound deadner pads that are shiny, black, and come 10 large (19x19) squares in a box. Did a 2008 Crown Vic with those, they worked well. Those are much thicker than this stuff and weigh a fair amount more. (NO, Im not complaining about weight) I just always thought that if it was heavier it HAD to be better. Well, Im working at a different larger shop now, and it wouldve been harder/more expensive to get the 3M pads, so I gave these a shot. I had to do a 2011 Hyundai Santa Fe for noisy/hollow sounding doors, a couple of which pinged like a drum head when they closed, thanks to the foam/adhesive breaking down on the diagonal support inside the door that the door-skin is bonded to. So, I did a few big strips, (it does not need to be completely covered!!) inside all 4 passenger doors, and rear gate. The stuff cuts good with a sharp box-cutter (watch the foil edges) Also, it sticks very well when pressed or rolled into place. I then added some Noico red foam to help with additional road noise dampening and insulation. I know some people complain about the smell but I never noticed it at all in the Hyundai or my 2018 F-150. This stuff worked great! got rid of all of the pinging/hollow sounding doors and it also gives you a pleasant increase in sound quality/bass response even with stock speakers! The Hyundai doors now sound like closing the doors on a car 3x its price tag with by doing that. They sound nice and solid now when they close. I also did all the doors on my 2018 F-150 with the other half of the box of this and the Noico foam, good results there too!! I will still have a small amount leftover that will go somewhere in the F-150 cab. Good price! Definitely recommend to get rid of hollow/cheap sounding doors or added for those looking for better sound!

I love this product

I installed Kilmat in my Toyota Camry SE; which as any Toyota Camry owner can tell you the road noise is quite loud. I did the entire trunk, and all of the doors, including the inside of the skin of the door, and the door panel itself. I will say this product is fantastic at blocking noise and deadening sound vibrations. Installation is easy and definately get the rollers (espeically the small one) as they make a huge difference. My aftermarket stereo really came to life after applying Kilmat generously on the doors; the bass came to life and the nuances in the music could now be heard. The Camry is much quieter now and the doors have that quality thump when you shut them. the outside noise is now at a minimum; and you can tell you are sitting in a quiet car. The nice thing is that you do not have to blast the music to hear the nuances; which is great for my daughters ears. I found most reviews here say that there is no smell; this in my experience is completely untrue. Perhaps there may be an off-gas period that needs to happen, but the inside of my Camry smells like tar or perhaps a glue smell. However, the smell is not repulsive or strong, but definitely present; its like someone farted in the seat and you sat in the seat and got that whif.... opening the windows relieves the strength of the smell for a bit. I left the windows open today to deal with the smell; and I did the trunk a few days ago and it still smells. I have read that Kilmat is not asphalt based, which is great, but beware that after applying you may smell it for a while. To be fair, it has only been a few days since applying, so I will update this review when the smell disappears as I expect that it will. I would and will continue to purchase this product as the value of what this does for the price is great. I plan on doing my 4Runner next.

Car is noticeably quieter

I was doing 4 doors and the liftgate, so I only bought 1 box. I didn’t do 100% coverage on the liftgate, but fairly complete single layer coverage on the inside of the door panels (backside of the exterior panel) as well as some of the interior part of the door panel for the 4 doors and had 1/2 a box left over. Used a utility knife and cutting board to cut the material easily. It was a warm FL day so it was easy to roll the material onto the panel with good adhesion. To help cut pieces for odd shapes areas, I put a piece of backing paper in the space and folded or marked it for the right shape like a template. Sound deadening was immediately noticeable, reducing road noise, making the speakers sound much better, and the doors sound more solid when closing them. For even better sound reduction i would suggest pulling the headliner and do the roof too which is thin sheet metal. Maybe I’ll do it in the future. Overall, happy!