Kilmat vs Hushmat: A Comparison of Automotive Sound Deadening Materials

I love cars, so I spend lots of time working on mine. I know the importance of keeping noise and vibrations to a minimum inside the car. That’s why I tried Kilmat and Hushmat, two popular sound-deadening materials.

They both claim to reduce noise and vibrations from the road and engine, but which one is better? From what I’ve lived, I know their strong and weak points and can make a detailed comparison.

This article will closely examine kilmat vs hushmat, looking at how well they work, how easy they are to install, and how good they are for the price. If you love cars or want a quieter ride, pick the best sound-blocker here.

Do Kilmat and Hushmat reduce road noise?

Kilmat and Hushmat are for car noise. Kilmat is thicker and better than Hushmat. Kilmat reduces engine noise, outside noise, shaking, and rattles. Kilmat costs less than other sound-deadening materials and comes in small sheets that are easy to use.

Hushmat also reduces noise by soaking up the energy and reducing the vibrations that make noise. Hushmat is great for reducing noise from the road and tires. It is best to use on the floor and the firewall. Hushmat Silencer makes Hushmat even better by cooling down the car and reducing noise.

Both Kilmat and Hushmat make the car quieter, so you can hear the music better.

what is Kilmat sound-deadening material?

what is Kilmat sound-deadening material?

The stuff called Kilmat quiets the noise and shaking in cars. It’s made of butyl and sticks to metal. Kilmat is thick and bendy, so you can cut it to fit any car part. You can get it in two thicknesses: 50 mils or 80 mils. The 80 mil type is more costly but better at quieting noise and shaking.

Kilmat works well at muffling engine noise, noise from outside, shaking, and clattering. Some folks say it also helps the sound from the car stereo. Folks who fancy cars and experts alike often use Kilmat to make their ride more peaceful and to up the sound quality.

My personal experience with Kilmat.

I recently installed Kilmat sound-deadening material in my car and the results have been impressive. Before installing Kilmat, my car was quite noisy on the highway, and it was difficult to have a conversation or even listen to music without turning up the volume significantly.

I found that the installation was easy enough, but it demanded a bit of patience and careful attention. The Kilmat sheets were easy to cut to size and apply to the metal panels in my car, and the adhesive backing stuck well without any issues.

Once the Kilmat was installed, I noticed an immediate difference in the sound quality of my car. The road noise was greatly reduced, and I was able to have conversations at a normal volume without any issues. I listened to the music and realized it sounded clearer and had more details. I didn’t need to increase the volume as I did before.


  • thicknesses: 50 mils and 80 mils. The 80 mil one was thicker and did a better job at cutting down noise and vibrations.
  • Kilmat was easy to handle, being lightweight at 0.35 lbs/1 sqft for the 50 mil version and 0.5 lbs/1 sqft for the 80 mil version. It was a sturdy material that could handle the severe conditions inside a car, enduring both hot and cold weather.
  • Kilmat was butyl-based, so it could stick to any metal surface in a vehicle without any trouble. It was useful for soundproofing, muffling engine and external noises and doing away with rattles and vibrations.
  • As an extra bonus, Kilmat also acted as a thermal insulator, keeping heat inside during chilly weather. It could be put up anywhere, whether indoors or outdoors, to block out sound.

how to install kilmat?

Installing Kilmat is easy. Here’s how we did it:

  • we cleaned our car surface really well with a degreaser or rubbing alcohol. We wiped off the dirt, oil, and grease.
  • Then, we measured the Kilmat sound-deadening material needed and cut it to size using scissors or a box cutter.
  • After peeling off the paper backing, we placed the Kilmat onto the metal surface and used a roller to press it down hard.
  • If we needed to install Kilmat in a tight space, we used a hairdryer to heat it up and make it easier to work with.
  • We repeated the process until we covered all the areas we wanted to soundproof. It was simple and straightforward.

what is hushmat sound-deadening material?

what is hushmat sound-deadening material?

He found this sticky material called Hushmat that could make his car quieter. It was made of butyl and could be stuck to any metal surface. Hushmat was really light and bendy, so he could put it on any shape or size in his car without a fuss.

He found out that there were different thicknesses of Hushmat to choose from. The thicker it was, the better it worked at stopping noise and vibrations. But the thin kind was cheaper. Hushmat also came in different sizes, so he could find one that fit his needs and wallet.

Hushmat was so good at stopping different types of noise. It made the engine, road and tire sounds go away. He heard it even helped the car’s audio system sound better. Putting Hushmat on the firewall, doghouse, front driver and passenger floor was a good idea to stop noise.

Hushmat could also take in the energy from vibrations and noise, so it didn’t bounce back into the car. He also learned that there was something called Hushmat Silencer that he could use with Hushmat Ultra to stop road noise and lower his car’s surface temperature by a lot.

My personal experience with hushmat.

I put Hushmat sound-stifling stuff in my auto for the last year, and I gotta say, I’m mighty impressed. I went for Hushmat ’cause I heard it could muffle road noise and better the sound quality in cars.

Putting it in was a cinch. It’s not heavy, and easy to manage, so the whole thing went smoothly. I laid it on my doors, trunk, and floor, and right away, the sound quality got a whole lot better. The road noise shrunk and the music sounded more clear and crisper.

What I admire most about Hushmat is how durable it is. Although it’s kinda thin, it’s held up well and has no marks of wearing down. It’s not heavy either, which is important to me since I’m a car enthusiast that cares about performance.


  • Hushmat is self-adhesive and can stick to any metal surface in a car.
  • Different thicknesses of Hushmat exist. Sizes change from tiny to small, ranging from 1/8 inch to 1/2 inch. The thicker ones work better to lower noise and vibrations.
  • Hushmat is light and bends easily. It can be fixed without any difficulty and cut into any form or dimension.
  • Hushmat is designed to withstand harsh conditions and is resistant to both heat and cold.
  • Hushmat effectively reduces road, tire, engine, and exterior noise, and enhances the sound of car audio systems.
  • Hushmat is formulated to dissipate and absorb energy, reducing vibration energy and noise.
  • Hushmat Silencer, when applied on top of Hushmat Ultra, effectively reduces road noise and lowers the vehicle’s surface temperature from 200 F (129C) to 70 F (56 C).

how to install a hushmat?

  • I washed my car’s surface nicely and cleanly, removing dirt, grease, and oil with a degreaser or rubbing alcohol.
  • To soundproof my ride, I measured and cut the Hushmat sound-deadening material into proper sizes using a box cutter or scissors.
  • After peeling off the backing paper, I firmly pressed the Hushmat onto the metal surface with a roller, using a hairdryer to make it more pliable for tight spaces.
  • I repeated the process until I covered all the areas I wanted to soundproof, including the firewall, doghouse, front driver, and passenger floor.
  • To further reduce road noise, I added Hushmat Silencer on top of the Hushmat Ultra. It’s another product that effectively reduces road noise.

Comparison of kilmat vs hushmat

Comparison of kilmat vs hushmat

I used Kilmat and Hushmat to deaden car sounds.


  • Kilmat is made of butyl and aluminium, and Hushmat is made of butyl and foil.
  • Both are light and easy to install.


  • Both are tough and last long.
  • Kilmat is 80 mils thick, and it endures well.
  • Hushmat is thin but sturdy; no signs of wear.

Noise Reduction:

  • Both reduce road noise and improve music quality.
  • They work well; the music sounds clearer.

Kilmat is “good at reducing engine noise, exterior noise, vibrations, rattles” while Hushmat is a “sound dampening, vibration damping, thermal insulation” product that is “rated #1 and the only OEM-approved product of its kind in the automotive aftermarket”


  • Kilmat and Hushmat are cheap compared to other deadening stuff.
  • Kilmat is slightly less expensive.

Customer Service:

  • Kilmat and Hushmat have good customer service.
  • They’re helpful and responsive when I ask about their products.

FAQs for kilmat vs hushmat

Does Kilmat reduce road noise?

Kilmat quiets cars and makes sounds better. It’s a mix of butyl and aluminium that dampens vibrations and blocks noise. The butyl absorbs sound and the aluminium keeps things cool. Kilmat’s a type of sound-deadening material made for cars.

Is Kilmat waterproof?

Kilmat keeps some water out, but not all. The thing had a little aluminium on it to protect it, but it couldn’t do much against water. To be safe, it’s best to keep Kilmat dry and away from water. If you need something that is really waterproof, you should look for a different product made for that.


I tried Kilmat and Hushmat and both are good at reducing road noise and improving sound quality in cars. While they differ in materials, price, and customer service, they’re both great options to enhance car acoustics.

I personally used Hushmat and it’s impressive. It’s easy to set up, tough, and effective in muffling road noise and enhancing sound quality. I heard Kilmat is also good and may use it in the future.

Choosing between Kilmat and Hushmat depends on your liking, availability, and needs. Both materials work well to improve car acoustics. I suggest you give both a try to see which suits you best.

About Author

this is john Andrew from Australia, I am an architect I have worked for the home improvement company Bunnings. I am a home improvement specialist as well as a part-time blogger. Where I will keep giving you tips on soundproofing, you follow our blog.

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