KILMAT 50 mil 50 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

(362 reviews)

Price
$59.99

Quantity
(10000 available )

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102 Ratings
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Reviews
  • J Gage

    > 3 day

    I used this material to line the cab of my RV. Cab noise was so loud before installing this, that trying to listen to the radio was pointless. Pulled up my carpeting, and installed these sheets on floors, inside the doors and inside the dog-house, and what a difference. The RV cab stays comfortably cool, no more hot foot on the passenger side. The road noise is markedly improved, and we can carry on a conversation without having to shout over the motor. Would highly recommend this product. Very easy to use and definitely worth it if you want to improve a hot, noisy area in your vehicle.

  • Keaton Wheeler

    > 3 day

    Works well, within its limitations. Its not going to turn your 90s tin can car into a modern lexus, but it was a pleasant change in my 2012 Miata, making everything sound more solid, the stereo sounds better, and marginally less road noise. Make sure to get the application roller tool, as its essential for proper application. One note, you dont need to entirely cover panels. One sheet or a large square on a panel will work 90% as well as covering the whole panel. The purpose of this is to dampen vibrations. It is not sound deadening mat, despite being labeled as such. For proper sound deadening you need something to isolate the sound. This is usually closed cell foam, or something like carpet padding.

  • Blue 96

    Greater than one week

    I completely covered the floor and cargo area of my c5 corvette. It cuts way down on road noise a fiberglass car will produce. Virtually eliminated rattles and vibration. Greatly reduced the amount of heat from the torque tube in drivers compartment. Definitely improved the sound of the Bose system especially the sub

  • Just another customer

    > 3 day

    Was super easy to install, once you get one done you get a rhythm going and you’re off to the races. Installed on my Jeep Wrangler to go under my Goose Gear platform so that it further insulated and allows for better noise quality

  • Mohamed Runolfsson III

    > 3 day

    I applied it to my 2020 Ford Edge ST. I had enough to do the whole trunk and all 4 doors with about 20 sheets left over. It works very well and nearly silenced the rattles from the 300w rms going to my JL Audio 10 sub. Works great at a fraction of what the major name brand costs!

  • Matt

    21-04-2025

    VALUE: I used Dynamat Xtreme (~67mil thickness) on my outer door skins on my 2012 Mustang, but I wanted to try something less expensive for the roof. While Dynamat Xtreme costs about $4.44 per square foot, a 50 square foot box of 50Mil Kilmat is $1/SF. I feel like Kilmat gives you about 60-70% of the effectiveness of Dynamat, but for 23% of the price. SMELL: The material had a pretty noticeable odor after just opening the box. I installed this on sunny 95°F day, which created a very strong smell with the doors and windows closed. The smell was gone after airing out the car for about 3 hot days. It didnt seem to linger in my cloth seats either. INSTALLATION: I really enjoyed working with Kilmat. The embossed rectangles make it very easy to cut out specific shapes without measuring. It also makes it very easy to see where you need to use your roller tool to press down the material. Its thin enough to bend into tight spaces and the foil stays well attached to the butyl. WORD OF CAUTION: Whatever product you go with, make sure to avoid asphalt containing products. They give off a horrible smell and they have potential health risks. As far as I can tell, Kilmat *does not* contain asphalt. UNDERSTANDING DEADENING SHEETS: - Layering butyl sheets isnt effective. 2 sheets of 50mil thickness is much worse than a single sheet of 100mil. - Kilmat and similar products mainly dampen the vibrations of whatever its applied to. It doesnt do a great job of blocking sound waves or as thermal insulation. Its best applied to large, thin sheet metal thats prone to vibration.

  • TD69Mustang

    > 3 day

    2001 GMC Yukon XL is like a big noise tube. I had an aftermarket exhaust installed and at certain engine rpms the harmonics that went through the exhaust was amplified inside of the vehicle so much that it was almost painful to the ears. And if anyone was sitting in the third row seating, forget about talking to them. I was skeptical about how well this would work but, on a whim, I decided to try this, as I was pulling the seats and carpet to clean them anyway. There is a 5 piece rolling tool installation kit that is also available, but I dint purchase it and had no problem with installation. In fact, I found that by wearing a pair of mechanics gloves (fabric, NOT NITRLE OR LATEX) it made it easy to really push the matting into small crevasses and around curves. I did have a laminate roller that is about 4 wide, and I did use that on some larger areas, but found myself defaulting to using the gloves instead. No doubt the rolling tools would have helped but I dont think you need them to have a successful installation. On the instructions, it says that you should roll out the matting until all of the waffle pattern is gone; but I pushed and rolled and pushed and rolled and was almost never able to completely eliminate the waffle. At the end of the day though, I feel like I got it installed successfuly. The mat is easy to cut with scissors or a utility knife. The backing is very sticky and once its down, dont even think of trying to pull it up. (NOTE: the day I installed it, it was in the low 90s so Im sure that helped with the adhesion). After installing, I took the vehicle for a test drive and was shocked how much quieter the vehicle was. It is still a little noisy, but soooo much better. At least now I can talk to someone sitting in the third row, while driving. I only have two regrets. 1) I should have bought another box. The 50 sq/ft box I got only covered around 85% of the floor. 2) I should have bought the 80mil matting instead of the 50mil as Im sure that would have made an even bigger difference.

  • hvymetal67

    Greater than one week

    Absolutely awesome. I used these in my 67 Camaro (350 cid with stock dual exhaust manifolds and exhaust system). Very easy to install (place mat down for fitting), applies easily (use a roller), sticks very well. The noise reduction is incredible. You can hear the engine, but significant reduction in road and exhaust noise. Conversation volume is at normal level. My buddy made a phone call and was able to speak at normal levels and no issues hearing conversation. It’s like riding in a new car. Very happy with purchase. Great product and great price compared to other sound deadening materials.

  • Kioller

    > 3 day

    I went to best buy and got 12SQFT for 100 dollars, then looked on amazon and found 50SQFT for 60 bucks, are you kidding me, this is why brick and mortar stores are going out of business. I didnt have to skimp at all on coverage because i had so much product. It also easily attached where i needed it, but also was able to be shifted around as long as you didnt press it down all the way. I did get a roller set for the professional look. So far I have done all 4 doors of my Jeep Liberty and added 3 sheets to the floor under the driver and passengers feet. AMAZING. it cut down on the road noise and wind noise, also cut out some random vibrations. AND THE SOUND! My stock speakers sound brand new, high highs and low lows. Worth every penny and the hard work to get it in. 10 / 10

  • Paul F. Blanken

    > 3 day

    I used this on the floor of my car. Put a double layer down. Definitely muffled road noise but did not eliminate. I plan on buying a second box to do the doors and even the trunk. Im certain that will help even more but I dont think it will cancel all road noise.

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