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

The media could not be loaded. 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.

Great product! I had issues with shipping on the first one (UPS fault, Not the seller!) but when the second order arrived I was worried that it would be too thin or hard to install. NOPE. It worked great! I left them out in the sun so the sheets were soft and easy to work with. Once the panels were back on there was no smell or sound. They work wonderfully and my interior is noticeably quieter. I'm buying another box to do the trunk and I will bet that I end up getting more and tighter bass out of it.

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

I think these sound deadening pads are often misused. Their purpose is mainly to stop panel vibration. So, they're designed to be placed on big, flat, metal panels and help quiet them down (with other products to help block outside noise), not used as a full-coverage all-in-one solution.I installed these in the cab of my Fuso box truck. First I put a layer of these down with about 75% coverage (I'm sure that's more than necessary, but I wanted to play it safe. Then, I stuck on sheets of closed cell foam as an isolater for the mass loaded vinyl that I finished with. The whole setup made a huge difference, and my truck is comfortable to drive now!

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.