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KILMAT 80 mil 18 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

4.8 4.8 out of 5 stars 2,660 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Brand KILMAT
Coverage 18 square foot
Item Thickness 80 Mils
Product Dimensions 15.7"L x 9.8"W

About this item

  • Very sticky self-adhesive 80 mil automotive butyl and foil sound deadening. It is user-friendly viable material suitable for DIY installation. KILMAT is really efficient and easy-to-install
  • Now the material is 1,5 times thicker that will get you 1,5 times more effective insulation. The thicker the material the more performance you get
  • Automotive self-adhesive insulation consists of butyl. KILMAT sound deadening has a total weight of 0.5 pounds/1 square feet. This weight ensures optimum efficiency and sound insulation that could be possibly gained from 80 mil thickness material. KILMAT 80 mil is light weighted sound deadening material
  • Audio insulation KILMAT has a special indicator as to if it is installed correctly. The special embossing on the foil must be rolled out till it is plain smooth, then you'll be 100% sure that the soundproofing is set correctly and professionally. The sound dampening material comes in handy size sheets which make it easier in terms of cutting and installation process
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Customer ratings by feature

Adhesion
4.8 4.8
Easy to install
4.7 4.7
Sound quality
4.6 4.6
Value for money
4.6 4.6
See all reviews

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Product Description

sound deadening deadener mat automotive heat insulation car proofing material
sound deadening deadener mat automotive heat insulation car proofing material
sound deadening deadener mat automotive heat insulation car proofing material
sound deadening deadener mat automotive heat insulation car proofing material

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KILMAT 80 mil 18 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

KILMAT 80 mil 18 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

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Product guides and documents

Installation Manual (PDF)

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PriceCurrently unavailable.$59.99$34.95$64.95$26.95$34.95
Delivery—
Get it as soon as Wednesday, May 15
Get it as soon as Tuesday, May 14
Get it as soon as Tuesday, May 14
Get it as soon as Tuesday, May 14
Get it as soon as Tuesday, May 14
Customer Ratings
4.84.8 out of 5 stars2,660
4.74.7 out of 5 stars444
4.74.7 out of 5 stars3,478
4.74.7 out of 5 stars304
4.74.7 out of 5 stars3,478
4.64.6 out of 5 stars118
Adhesion
4.8
4.7
4.8
4.6
4.8
4.7
Easy to install
4.7
4.4
4.8
4.5
4.8
4.7
Value for money
4.6
4.5
4.6
4.7
4.6
4.8
Noise cancellation
4.6
4.7
4.6
4.2
4.6
—
Noise level
4.5
4.7
4.5
4.6
4.5
—
Sold By
—
StP Atlantic LLC
Siless
Siless
Siless
Siless

Customer reviews

4.8 out of 5 stars
4.8 out of 5
2,660 global ratings

Customers say

Customers like the stickiness, ease of installation, value, quality and ease of cutting of the insulation. For example, they mention it sticks well, makes installation fast and is the best value for the money. They appreciate performance, and soundproofing.

AI-generated from the text of customer reviews

82 customers mention75 positive7 negative

Customers are satisfied with the soundproofing of the product. For example, they mention that it greatly reduces sound noise, makes music better, and that the garage door is now quiet enough to open and close at 4am without waking neighbors. They appreciate the pleasant increase in sound quality and bass response, and the marked decrease in sound reasonance. Some say the product does a great job taking buzzing and rattling out of panels.

"...pinging/hollow sounding doors and it also gives you a pleasant increase in sound quality/bass response even with stock speakers!..." Read more

"Used this not only for audio enchantments but reduce road noise on 2009 Mazda 3...." Read more

"These really work to reduce noise levels in your car. I just put them on larger surfaces, and it made a noticeable difference...." Read more

"...Not really tried it out with my subs but definitely seems to help with road noise. Would recommend, and zero smell after installed." Read more

60 customers mention53 positive7 negative

Customers like the ease of installation. They say the insulation is easy to cut, shape, and apply. They also mention that it makes installation fast. Some say the sheets are just easier to work with and the end result is covered with carpet.

"I have zero complaint about the 80 mil kilmat. It was easy to install, literally cut to fit, stick, roll out till the bubbles on the foil layer are..." Read more

"...Turns out the sheets are just easier to work with and the end result is covered with carper anyway so no pressure to line everything up...." Read more

"...reducing noise and vibrations in my car, and the installation was straightforward and hassle-free...." Read more

"A+++ Sticky adhesive. Easy to use." Read more

58 customers mention58 positive0 negative

Customers are satisfied with the performance of the insulation. For example, they mention it works well, it kills resonance, and it's the best value. Some say it works to line the trunk and is satisfied with its performance.

"...This stuff worked great!..." Read more

"...deadening material but it cuts easily, goes down pretty well and seems to work. Cons….it’s heavy" Read more

"...and another couple in the tracks and opener motor, the results were phenomenal...." Read more

"...Resonix was the best value and best performer but it’s expensive...." Read more

52 customers mention52 positive0 negative

Customers are satisfied with the quality of the insulation. They mention that it helps a bit, but not a lot, and is outstanding. They also appreciate the good material and the easy installation.

"...They sound nice and solid now when they close...." Read more

"...If you're looking for a reliable and effective way to improve sound quality and minimize road noise, this product is an excellent choice...." Read more

"...It goes on easy and has so far (1 year+) held up great, I have had to remove my door panels to install new mirrors and took a peek inside and its..." Read more

"Some of the sheets were cut which I disliked but this is extremely good product and I have never needed a full sheet anyways...." Read more

42 customers mention42 positive0 negative

Customers are satisfied with the value of the insulation. They mention that it makes a big difference in road noise and sound, and is a great underpayment. Some are happy with their purchase and appreciate the better low end extension.

"...Good price! Definitely recommend to get rid of hollow/cheap sounding doors or added for those looking for better sound!" Read more

"Great value for the money...." Read more

"...I highly recommend it for its durability, versatility, and great value for money. You won't be disappointed with this purchase!" Read more

"...Kilmat was pretty bad and silless was awful. Resonix was the best value and best performer but it’s expensive...." Read more

31 customers mention28 positive3 negative

Customers are satisfied with the stickiness of the insulation. For example, they mention it's easy to install, sticks well to surfaces, and will stay in place forever. Some say the product is tight but effective at reducing vibrations.

"...cuts good with a sharp box-cutter (watch the foil edges) Also, it sticks very well when pressed or rolled into place...." Read more

"...I used a roller to press it in and they stuck really well. Made my sound system that much better." Read more

"A+++ Sticky adhesive. Easy to use." Read more

"Sticks very well, I used this as sound deadening in my Polaris Ranger" Read more

18 customers mention18 positive0 negative

Customers find the insulation easy to cut. They mention it's easy to bend and fit into tight spaces.

"...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..." Read more

"...It was easy to install, literally cut to fit, stick, roll out till the bubbles on the foil layer are gone...." Read more

"Can’t compare it to any other deadening material but it cuts easily, goes down pretty well and seems to work. Cons….it’s heavy" Read more

"...This Mat is very solid and super simple to cut and apply or apply then cut- whichever method you prefer...." Read more

13 customers mention8 positive5 negative

Customers are mixed about the thickness of the insulation. Some mention it's very thick and flexible, while others say it'll add some weight to the vehicle.

"...Japanese economy car = road noise.. Works great car doors have a nice solid feel when shutting vs hollow rattle of thin sheet metal...." Read more

"...Cons….it’s heavy" Read more

"...This Mat is very solid and super simple to cut and apply or apply then cut- whichever method you prefer...." Read more

"...piece was really 80mil but didn’t feel like I needed to they felt nice and heavy and after installation the noise change was huge and I only did a..." Read more

Tremendous Value!
5 Stars
Tremendous Value!
Great value for the money. Order a quality roller for installation (and not a crappy $5 one like I did) First time using a product that came in sheets and wasn’t sure if it would be satisfactory. Turns out the sheets are just easier to work with and the end result is covered with carper anyway so no pressure to line everything up.Very easy to install. I used this on the floor and inside the doors for my Miata. The really intriguing part is the waffle texture which is to show you areas that haven’t fully adhered to the surface.Also, I included pictures of how I make holes for hardware. Lay the material on an area and press down or mark where a bolt hole should be. Then m grab a socket that will be large enough to leave extra space (I used a 22mm) and a soft hammer to pound on the mark (on a safe, hard surface) and then peel out the “hole”.
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Top reviews from the United States

C.KOELLE
5.0 out of 5 stars TRY ITTT!!!!
Reviewed in the United States on June 2, 2021
Verified Purchase
OK, first of all I've 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 didn't have it at all or have very much of it. We've always used the 3M sound deadner pads that are shiny, black, and come 10 large (19"x19") 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, I'm not complaining about weight) I just always thought that if it was heavier it HAD to be better. Well, I'm working at a different larger shop now, and it would've 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!
23 people found this helpful
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Chris Shackleford
5.0 out of 5 stars Great for the price point!
Reviewed in the United States on April 21, 2024
Verified Purchase
Used this not only for audio enchantments but reduce road noise on 2009 Mazda 3. Low profile tires + Japanese economy car = road noise.. Works great car doors have a nice solid feel when shutting vs hollow rattle of thin sheet metal. Very pleased with this purchase.
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Jeremy
5.0 out of 5 stars Solid stuff!
Reviewed in the United States on December 20, 2023
Verified Purchase
I have zero complaint about the 80 mil kilmat. It was easy to install, literally cut to fit, stick, roll out till the bubbles on the foil layer are gone. Just in covering the back wall and a minimal amount on my rear doors has reduced the noise level of my truck from needing the radio at 20 to now i can use it at 13. Love the product! Hope everyone finds this helpful as i personally was worried about real life results.
Customer image
Jeremy
5.0 out of 5 stars Solid stuff!
Reviewed in the United States on December 20, 2023
I have zero complaint about the 80 mil kilmat. It was easy to install, literally cut to fit, stick, roll out till the bubbles on the foil layer are gone. Just in covering the back wall and a minimal amount on my rear doors has reduced the noise level of my truck from needing the radio at 20 to now i can use it at 13. Love the product! Hope everyone finds this helpful as i personally was worried about real life results.
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Customer image
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4 people found this helpful
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Adriana Williams
4.0 out of 5 stars Seems decent
Reviewed in the United States on January 7, 2024
Verified Purchase
Can’t compare it to any other deadening material but it cuts easily, goes down pretty well and seems to work. Cons….it’s heavy
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WRC
5.0 out of 5 stars really works
Reviewed in the United States on April 17, 2024
Verified Purchase
These really work to reduce noise levels in your car. I just put them on larger surfaces, and it made a noticeable difference. I used a roller to press it in and they stuck really well. Made my sound system that much better.
Helpful
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CeeDee
5.0 out of 5 stars Works great and price is good
Reviewed in the United States on November 8, 2023
Verified Purchase
I originally bought the 36 sq ft box and did my entire back of the jeep including about half under my back seat. I decided to go ahead and do the entire jeep so bought the additional 18 sq ft box and finished the rear seat area along with floors in front seats. Not really tried it out with my subs but definitely seems to help with road noise. Would recommend, and zero smell after installed.
Customer image
CeeDee
5.0 out of 5 stars Works great and price is good
Reviewed in the United States on November 8, 2023
I originally bought the 36 sq ft box and did my entire back of the jeep including about half under my back seat. I decided to go ahead and do the entire jeep so bought the additional 18 sq ft box and finished the rear seat area along with floors in front seats. Not really tried it out with my subs but definitely seems to help with road noise. Would recommend, and zero smell after installed.
Images in this review
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5 people found this helpful
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Diamond Dave
5.0 out of 5 stars Tremendous Value!
Reviewed in the United States on November 8, 2023
Verified Purchase
Great value for the money. Order a quality roller for installation (and not a crappy $5 one like I did) First time using a product that came in sheets and wasn’t sure if it would be satisfactory. Turns out the sheets are just easier to work with and the end result is covered with carper anyway so no pressure to line everything up.

Very easy to install. I used this on the floor and inside the doors for my Miata. The really intriguing part is the waffle texture which is to show you areas that haven’t fully adhered to the surface.

Also, I included pictures of how I make holes for hardware. Lay the material on an area and press down or mark where a bolt hole should be. Then m grab a socket that will be large enough to leave extra space (I used a 22mm) and a soft hammer to pound on the mark (on a safe, hard surface) and then peel out the “hole”.
Customer image
Diamond Dave
5.0 out of 5 stars Tremendous Value!
Reviewed in the United States on November 8, 2023
Great value for the money. Order a quality roller for installation (and not a crappy $5 one like I did) First time using a product that came in sheets and wasn’t sure if it would be satisfactory. Turns out the sheets are just easier to work with and the end result is covered with carper anyway so no pressure to line everything up.

Very easy to install. I used this on the floor and inside the doors for my Miata. The really intriguing part is the waffle texture which is to show you areas that haven’t fully adhered to the surface.

Also, I included pictures of how I make holes for hardware. Lay the material on an area and press down or mark where a bolt hole should be. Then m grab a socket that will be large enough to leave extra space (I used a 22mm) and a soft hammer to pound on the mark (on a safe, hard surface) and then peel out the “hole”.
Images in this review
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10 people found this helpful
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Nick S
5.0 out of 5 stars Worked great to make a garage close quieter, even with minimal coverage
Reviewed in the United States on October 1, 2023
Verified Purchase
I read in some other reviews that you don't need full coverage to get good results. That ended up being important for my garage door because I can't add whole box of this heavy stuff without having to re-tensioning the spring to account for more weight.

Despite only putting 4 or 5 panels on the door itself (cut up evenly to distribute them in the most buzzy spots) , and another couple in the tracks and opener motor, the results were phenomenal. The garage door is now quiet enough to open and close at 4am without waking neighbors in the adjacent bedrooms.

Going to put this stuff on everything now!
Customer image
Nick S
5.0 out of 5 stars Worked great to make a garage close quieter, even with minimal coverage
Reviewed in the United States on October 1, 2023
I read in some other reviews that you don't need full coverage to get good results. That ended up being important for my garage door because I can't add whole box of this heavy stuff without having to re-tensioning the spring to account for more weight.

Despite only putting 4 or 5 panels on the door itself (cut up evenly to distribute them in the most buzzy spots) , and another couple in the tracks and opener motor, the results were phenomenal. The garage door is now quiet enough to open and close at 4am without waking neighbors in the adjacent bedrooms.

Going to put this stuff on everything now!
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15 people found this helpful
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Top reviews from other countries

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CumminsCowboy
5.0 out of 5 stars Very nice product.
Reviewed in Canada on January 16, 2024
Verified Purchase
I bought this to add some sound proofing and insulation in the cab of my old farm tractor. Cabs in the 70's didn't pay much regard to noise. I am very pleased with this stuff. I cleaned the floor with a quick wipe down with acetone, then installed these sheets. I found them to be very easy to cut, bend, align and install. The glue on them sticks really well and it deffenitely has already quieted down some of the powertrain noise. This is a very nice product to work with. I think I'm going to do the rest of the cab yet, and then cover it over with carpet.
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CumminsCowboy
5.0 out of 5 stars Very nice product.
Reviewed in Canada on January 16, 2024
I bought this to add some sound proofing and insulation in the cab of my old farm tractor. Cabs in the 70's didn't pay much regard to noise. I am very pleased with this stuff. I cleaned the floor with a quick wipe down with acetone, then installed these sheets. I found them to be very easy to cut, bend, align and install. The glue on them sticks really well and it deffenitely has already quieted down some of the powertrain noise. This is a very nice product to work with. I think I'm going to do the rest of the cab yet, and then cover it over with carpet.
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One person found this helpful
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Krini
5.0 out of 5 stars Top
Reviewed in Germany on May 5, 2024
Verified Purchase
Einfach zu verarbeiten
Halten gut auf dem Innenblech
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Andrea Polesana
5.0 out of 5 stars FA IL SUO DOVERE
Reviewed in Italy on April 8, 2024
Verified Purchase
Ottimo prodotto, fa il suo lavoro e il van cambia proprio. Lo consiglio vivamente
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MENIPPEE
5.0 out of 5 stars rien de mieux
Reviewed in France on March 15, 2024
Verified Purchase
épais et lourd et format très pratique. Nettement mieux que la concurrence (j'ai acheté 2 ou 3 marques concurrentes). Il est conseillé de chauffer les plaques avant de coller car l'adhérence est alors parfaite.
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Javier
5.0 out of 5 stars Muy bueno
Reviewed in Spain on January 30, 2024
Verified Purchase
Instaladas en el suelo de un coche. Después de dejarlas al sol 1 hora aprox, el papel protector se despegó sin problema. Aplicadas con un rodillo, se adhieren perfectamente y el resultado es estupendo.
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