MAT66 ProBlack 80 mil 36 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Vehicle Audio Sound Insulation and Dampening Material

Do you have an older car or truck with some rattles? Are you dropping in some much improved speakers in your doors? Do yourself a solid by taking the time and a few bucks to lay in some sound deadening material. Mat66 is **awesome**. The package arrived in great shape and well packed. I ordered 36 square feet of 80mil foil clad butyl. It was a HEAVY box. 1. Convenience: The pack comes with 34 sheets 15.7x9.8 inch in size. These are perfect for doors or floors or roof. These also cut down nicely with sheers or strong scissors. You can also bench cut them on a cutting mat or nylon cutting board with a utility knife. The sheet size makes it really easy to mock up and design your layout. 2. Adhesion: Each sheet has backing paper that peels away easy - you start from one end and slowly take the paper away while securing the adhesive to the surface you are covering. You will need a hand roller or other smoothing tool to press down and form the sheets into all curves, contours, and bumps of the surface. The sheets have these cool bump square indicators on the back foil cladding. If you smooth down all the bumps, the sheet is stuck on there properly. Super simple. 3. Value for money: For 36 square feet of 80mil, this was very reasonably priced. I was able to cover all of the interior door shell I could reach, as well as the front face of 2 Chevy truck doors, and coat the inside of both the door cards. I only used about half the box of Mat66 they sent me! 4. Tips: Warm it with a hair dryer if working in a cold shop or outside. It shapes into contours and sticks much easier and quicker if warmed. Clean your surfaces well before installing. In the photos you will see I used this as a backer surround for the new Alpine speakers I was installing. Again, by reducing rattle, and stiffening the sheet metal surface the speaker is mounted on - all the better the sound outcome. This also sealed up the OEM opening (closed the small gaps around the speaker). Then by doubling up 2 layers of Mat66 exactly behind the speaker on the outer door shell, you almost completely eliminate vibration and rattle in the door, also equals better sound purity. The weather proofing OEM door plastic had no problem sticking to the Mat66 when I put it back on. I just used the same roller to re-stick the goo that holds the plastic. Lastly, it sticks to itself. If you carefully layer the sheets, making sure to roll them down well, you can go 2 or 3 layers deep for high SPL applications or where you really want to kill road noise like fender wells, doors, and floors. Now I'm looking around for projects to use the rest of the leftover sheets, and when needed, I will buy this product again. - Bolt

Couldn’t be more happier with the outcome. Currently did a whole HVAC upgrade with a new heater core, AC evaporator, USA Blend Doors and foam kit to a 2006 Dodge Ram 2500 Mega Cab. So I did this as well to help with rams not so good AC system. As we will be moving to a warmer climate state. I used the MAT 66 80mill through the whole cab including the fire wall and the doors and it took exactly 4 boxes. I then went with another layer just on the floor board that the carpet covered with Siless Hybrid 3in1 200 mil. We’ll see how good it helps with heat / cold retention and sound when the truck is done. From what I’m seeing on all the other reviews it helps a ton. Didn’t have any crazy smell that was unbearable, just a minor hints of an asphalt smell when the garage was very warm. Very easy to lay down and it stuck very well as we cleaned everything very well with dawn power wash, but you’ll for sure go through a ton of razor blades and when rolling it out to get into the creases, the adhesion tended to get pushed out and it was pretty messy at the end and does not come off clothes even with goo gone. It took us (2 people) about 3-4 days with constant work but with perfection quality. So all and all. It was easy to apply, pretty good quality as what I can tell, since this is the first time I’ve ever used this stuff.

This product is very high quality for the price and quantity you get! I matted down my moms ride after obtaining some real seriously annoying rattles from installing a subwoofer and am very impressed with the outcome. No rattles what-so ever. Compared to the overpriced low quantity and thinner profile “DYNAMAT” brand this Matt66 soundproofing material is 100 more times better! It’s been about 6 months now with this product installed and still very pleased with the outcome with this product. I have also installed this in my personal car. So far I have done the entire floor of my trunk and rear doors completely. The interior has drastically improved. Also music quality improved, and has also provided excellent sound-deadening from the outside and inside of the of the cabin. All in all. This is a great product. I will recommend this to anyone who is in the market for sound deadening at affordable costs and selling such high quality product. Very easy to use and cut to fit for application.

Easy to install and good price. Works amazing

Worked in collision repair for over 20 years, so I am well versed in sound deadener products. Bought this out of desperation to fix a vibration/rattle in my WRX. I have to say this, for the price point I am absolutely shocked at how well it performs when compared to the DynaMat. Huge difference once installed and I still have several sheets left over after doing 4 doors and a LOT of the trunk/quarter panels and deck lid. I will be buying more of this. Having installed this and DynaMat material, I prefer this product. Overall db reduction is on par with Dyna and its a lot more cooperative during install. Will likely never purchase DynaMat products again to be honest. I like this stuff.