Spray-on Sound Deadening

It is good quality it fits perfectly in thought spots it's so cheap I love it it doesn't look bad and it's functionality is great

Used on walls of golf cart motor area under seat to help quiet noisy motor. Did help

I drive a turbocharged 2006 subaru wrx with 116k miles on it. this affordable sports car is one of the loudest cars in the world in part because subaru put almost no sound insulation in the car so it could be light and affordable. road noise has been so bad that it actually hurts my hearing now. ordered 4 cans of this stuff after reading a lot of other amazon reviews. I agree with many other reviewers: this stuff does help, but not that much. I had my mechanic take the wheels off, and spray a lot of this stuff onto the wheel wells. three cans (yes, three) was able to give me a decent coat on the four wheel wells. with the remaining can, I just had my mechanic spray under the driver seat - an undercoating. there definitely is a decrease in road/tire noise. i'll guess it's about 1 decibel. the other reviewers are right - you'll need lots of coats of this stuff if you want to make a big reduction in noise. [side note: for those of you who would super quiet cars, change the tires. sure, very expensive - but then you aim for the source of the problem] I did use 3m 03584 Professional Grade Rubberized Undercoating - 16 oz - before. In fact, I think I've used 10 cans total on all the wheel wells. I think this boom mat is a little more effective. my mechanic said it was thicker. boom mat also comes with a small, long, spray/straw like tube that can be attached to the can. in other words, boom mat can be sprayed through a provided tube that concentrates the spray that comes out, enabling you to reach into even deeper places for greater buildup. sure, it's slow... but it can enable those who wants to reach (almost) everywhere to do so. so, I like this stuff. my car is quieter. seems easy to use. darn cheap too. buy only 4 cans of this stuff, and get free shipping from amazon. comes out to only $10 a can. cost effective, helps (a little), and can always put on more later on for even more effect. I plan to buy more in the future.

I couldn’t use for my project… but great product and trustworthy seller.

Used this to spray the liner of my wheel wells. I had enough to do the two front liners. Will probably need 2 cans per liner. Not a night and day result but possibly a slight less road noise in the cabin. If anything I think it made it seem like the back was louder but maybe that’s cuz it actually worked. Didn’t use a decibel meter before and after so can’t say for sure it’s doing what it claims.

It did work well, but it stinks (you'll need to air it out for a few weeks, and there isn't much in the can. I maybe did a 5x5 ft area w/ one can.

Good addition to interior sound deadening. Installed an AWE exhaust on the OB Wilderness. It's a bit louder than I want to hear inside so trying to mitigate the noise. Bought two cans and it covers two coats in rte exhaust pockets including pulling the heat shield and two light coats on those. Doesn't over that much as everyone else noted. It did help reduce a bit more noise but not as much as the interior deadening of course. Planning to get another couple cans, pull the wheel well liners and do those too. Looks very nice. Just took another look after a few weeks of use and heavy rain - looks perfect.

Worked better than anticipated

Graet Product Ever!!!!.....

Used a total of four cans on my 96 Cobra. I did the floors and trunk after I gutted the interior panels to dead out some road noise. Worked great for me. A pointer that if you have drain holes in the floor or trunks make sure to seal them then spray, if you don’t the road noise will still be evident.

This is indeed the heaviest spray can I've ever held so its got body ... I used this on the under side of a plastic engine splash guard ... the original splash guard was made of a more sound proofing material but kept dropping because of its weight. I liked the idea of plastic but didn't want any excess noise ... so I roughed the plastic shield up and gave it several sprays over a few days. It sprayed on evenly dried flexible and by all means should definitely help with the noise. The extra left in the can I'll spray on other areas underneath my car to help with any road noise as well. Will update if I have any problems but the application went on pretty decently.

Very good product. When received the can is heavier than expected and sprays very thick but does an excellent job of reducing noise from the trunk, I would recommend this product for a cheaper alternative to the roll on mats. Two coats in the trunk and the two front doors took the whole can, but would buy again.

This product was easy to use when spraying into hard to reach areas in the trunk and door panels of my Mustang. One can goes a long way! My results are pleasing.