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

Good adhesive works better than I expected

Girlfriend and are I doing a mild camper build in our 06 E350. Were not going to really be living in it and most trips will just be 1-3 day ventures or for concerts. I also have everything easily removable so I can still use it to haul stuff. With all that I couldnt really be bothered for the 80mil for the large price difference. This does a great job. Its also incredibly easy to work with to cut around corners. We also used it to go over holes in the sheet metal on the sides after we packed them with insulation. The floor in the van has the kilmat down first then furring strips to balance the ribs with the foam board insulation then the plywood base to vinyl. With so much else going on top - the 50mil is the perfect thickness in my opinion for a van floor if thats your purpose with it. If you have the extra money and are super concerned with outside noise then Im sure the 80mil is just as nice to work with.

I had the rollup door on my Step Van removed, and replaced with diamond plate aluminum on steel studs, as you might imagine, this transmits sound pretty well. So I had Kilmat installed between the studs. If you knock on the back wall with your fist, it sounds like a dull thud on the inside rather than a tinny clang. Perfect.

This product likely sat in a hot warehouse, and does not work as intentioned. It has an adhesive side, with a covering paper, and then it has a paper that you should be able to peel off the front side of it, but only one sheet out of the entire box worked like that. The rest were all stuck together

I really like this product, it was super easy to lay out and trim to fit pieces where full sheets wouldnt fit. I could of taken more time and fit it a Bit better but in less than 30 minutes I did the entire floor of a 06 crew cab gmc 2500hd. I have not driven yet for noise test but just tapping on the floor you can instantly tell it will be helpful. My factory mass backing had water damage so I liked this for noise reduction and getting rid of the padding.

For those looking for a good low-cost alternative to Dynamat, this is acceptable. I used both Dynamat and Kilmat on the same build. The Dynamat product was the Dynamat Xtreme. In contrast, the aluminum on the Kilmat is thinner and the butyl material smells A LOT like roofing felt... like EXACTLY like roofing felt -- definitely a bituminous odor. It is not overwhelming. I could only smell it with from about 2 away at normal temperatures By comparison the Dynamat Xtreme has ZERO odor. Nothing. The good thing about the Kilmat is that it sticks very quickly (used a heat gun to promote adhesion due to cooler outdoor temps but really did not need to) and the embossed aluminum makes it simple cut straight with one mark. Also, the packaging says it is made in the Russian Federation... so, those folks have a lot of experience silencing things so this will likely work very well. I just hope its not made out of Chernobyl chunks else my build will put a new meaning on the term radioactive.

The road noise and overall tinny sound of closing the doors, trunk, etc. on a 2008 Accord Coupe got me to searching for a solution. Installed this stuff everywhere - on the floor, inside the doors, inside the trunk, on the ceiling, and on the rear-fenders (from inside; theres an opening under the trim). We also added Noico adhesive foam to further control road noise. It made a huge difference and the car is much more pleasant to drive on the highway now. Also, closing the doors now makes a reassuring, solid thump. Note: Handling the headliner to remove it killed the foam under the cloth. :-( 11 years of baking under a black roof, in the Texas sun, had weakened the foam. It crumbled from the handling and the liner started to sag in just a couple of days. Ugh! Pulled out the headliner and had it recovered at a local shop. Had I known this was a possibility, I might have left the ceiling alone! That ended up costing an extra $125 ($250 if the shop also did the remove and install of the headliner).

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.

Looks great and works great. Husband loves his Christmas gift!

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