Design Engineering 050220 Boom Mat Spray-on Sound Deadening to Reduce Unwanted Road Noise and Vibration 18 Ounce (3 Pack)

Spray this in your wheel well and it reduces sound tremendous

I like this product! It sprays on easily and the difference in transmitted body sound in my Corvette is very noticeable. It is great inside car doors and places that are hard to apply other deadening materials. It seems to hold up to heat and cold without cracking.

Product works great easy to apply the only reason I give it four stars was because it says it covers 20 square feet I don't actually think it covers that much area unless you do a very light coat and that kind of defeats the purpose

One of the coolest products I’ve used in a while! I’m a big sound dampening nerd. Been one of my favorite modifications on my truck that I’ve been restoring. Older trucks have no coating on the undercarriage. This is the perfect product to stick under your truck. DEFINITELY A CONSIDERABLE UPGRADE. My only recommendation is insure you have a nice clean surface. It will not adhere to grease at all.

Easy to apply, and it really does take the reverb out of metal. Dampens well.

Expensive spray

I was skeptical but this stuff is outstanding. Goes on beautifully and definitely blocks some good amount of noise out. However, buy double what you think. It sprays HEAVY and one can last maybe 30-45 seconds of spraying. I used 6 cans just to do the bottom of the cab on my f150

I will admit, I did not use this for its intended purpose. It's definitely not meant to be sprayed onto thin sheet metal/ductwork to reduce noise/vibration. But it actually does pretty decent. In my video you can hear the difference between bear ductwork, boom mat, a thin layer of boom mat, and a thicker layer of boom mat. All of my paint was one coat. The reason I'm giving is such a bad review, is because the paint absolutely flies everywhere. While in one of my photos I did get a little overspray myself, all of the drips on the wall were purely from the paint itself. I did not spray there, it spat those out itself. Now granted I was looking up, and spraying at a 45° to 75° angle, But nevertheless it's still sprayed absolutely everywhere.

It sprays pretty good once you start but the cans dont last long, had to make 3 cans last between all 4 wheel wells, I thought id give this a try while doing some body work to pretty it up some, does make a mess while it sprays but just cover up what you dont want it on, for the price it should come with 4 cans for the extra coverage. Time will tell to see how long it sticks i guess cant say it made much of a difference sound wise but looks good once cured

It’s not really thick so i don’t understand how it would even work