'10-14 Interior and Audio Place to discuss 2010-2014 interior and audio type modifications.

Dynamat?

Old Oct 26, 2012 | 09:17 PM
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Dynamat?

What is your experience? Would you recommend? I plan to just do the trunk.
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Old Oct 27, 2012 | 05:39 AM
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I would check out http://www.sounddeadenershowdown.com. I'm about to do the same thing, and I think I can get 100% coverage in the trunk for $150 - maybe less.

I've also heard good things about Fatmat RattleTrap.
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Old Oct 27, 2012 | 09:01 AM
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If you are looking to just lower the sound level, 50% coverage will be very close to a 100% kit. In my experience, the perceivable difference between 100 and 50 coverage is very slight. You can save some money and some weight.
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Old Oct 28, 2012 | 07:50 AM
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doing the roof helpped me out a lot as far as sound goes. A member here stated doing the floors and front fenders made a huge difference.
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Old Oct 28, 2012 | 08:42 AM
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I used Raam mat and foam on the whole floor, trunk, fender wells doors and behind the rear speakers(vert) helped a ton! But be prepared its a lot of work, dont think I would do it again.
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Old Oct 29, 2012 | 06:52 AM
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I used the Dynamat set of 9 sheets, was enough to do the trunk and both doors on my '06. Amazon.com usually has good prices on it, got mine for around $125, looks like it is $143 on there now. I did it because of the audio system in it, was well worth it.
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Old Oct 29, 2012 | 08:58 AM
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Originally Posted by jsimmons
I would check out http://www.sounddeadenershowdown.com. I'm about to do the same thing, and I think I can get 100% coverage in the trunk for $150 - maybe less.

I've also heard good things about Fatmat RattleTrap.
I have heard horrible things about Fatmat, I would stay away from it. Or at least go to Home Depot and by roofing mat, it's the same thing.

Dynamat has stood the test of time because it works, period. It will do a great job killing noise without falling out, and it is pretty easy to install with a knife and a heat gun. I've done the foam before, and that stuff worked well, but was a huge PITA to install.
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Old Oct 29, 2012 | 05:53 PM
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Dynamat doesn't block sound or noise. It quells vibrations and resonances. Using it is only ONE step is blocking sound. Yes, you may hear panels vibrating and noise resonating off the panels, but Dynamat (or similar) does not get rid of the sound. You need closed cell foam and mass loaded vinyl to actually absorb/block unwanted road noise. Look up sound deadened showdown, as mentioned above.
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Old Oct 30, 2012 | 08:14 AM
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I used the homedepot stuff and it worked is working well. I also used the foam stuff. made my radio sound much better.
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Old Oct 30, 2012 | 09:36 AM
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Originally Posted by Planeswalker
I used the Dynamat set of 9 sheets, was enough to do the trunk and both doors on my '06. Amazon.com usually has good prices on it, got mine for around $125, looks like it is $143 on there now. I did it because of the audio system in it, was well worth it.
Nice. Was that the trunk kit? Do you have a link?
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Old Nov 4, 2012 | 08:03 PM
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I did a complete crew cab pickup using Rammat...good stuff for the price. Look at the links above they have a lot of good info. Pretty much put down some rammat, then some mass loaded material and you will be golden. It is a lot of work though but I think it is worth it at the end!!

Last edited by fgibbs; Nov 4, 2012 at 08:07 PM.
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Old Nov 4, 2012 | 08:40 PM
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Originally Posted by laserred38
Dynamat doesn't block sound or noise. It quells vibrations and resonances. Using it is only ONE step is blocking sound. Yes, you may hear panels vibrating and noise resonating off the panels, but Dynamat (or similar) does not get rid of the sound. You need closed cell foam and mass loaded vinyl to actually absorb/block unwanted road noise. Look up sound deadened showdown, as mentioned above.
9 times out of 10, when someone is only doing the trunk, they are doing it to deal with vibrating panels caused by subwoofers in the trunk. Dynamat will fix that.

Also, saying that it only blocks vibrations and not sound or noise is completely nonsense. Sound waves are vibrations, they are the same thing and there is no scientific way to block one without blocking the other.

I've seen that guy's website, and I've used the foam before, it works fantastic. But Dynamat also works very well, is easier to apply, and was a little cheaper by the time all was said and done.
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Old Nov 4, 2012 | 09:01 PM
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Originally Posted by zbrewha863

9 times out of 10, when someone is only doing the trunk, they are doing it to deal with vibrating panels caused by subwoofers in the trunk. Dynamat will fix that.

Also, saying that it only blocks vibrations and not sound or noise is completely nonsense. Sound waves are vibrations, they are the same thing and there is no scientific way to block one without blocking the other.

I've seen that guy's website, and I've used the foam before, it works fantastic. But Dynamat also works very well, is easier to apply, and was a little cheaper by the time all was said and done.
It's not blocking the sound from vibrating panels. It's preventing it due to its weight making the panels stronger. It does nothing for outside road noise or reflections though. That's why you need the foam and MLV. You may think it's semantics, but it's not. They serve different purposes. For most people, preventing their panels from vibrating is enough. It does make a big difference. But truly blocking out all unwanted frequencies AND preventing panels from vibrating makes a HUGE difference...
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Old Nov 5, 2012 | 11:24 AM
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Originally Posted by laserred38
It's not blocking the sound from vibrating panels. It's preventing it due to its weight making the panels stronger. It does nothing for outside road noise or reflections though. That's why you need the foam and MLV. You may think it's semantics, but it's not. They serve different purposes. For most people, preventing their panels from vibrating is enough. It does make a big difference. But truly blocking out all unwanted frequencies AND preventing panels from vibrating makes a HUGE difference...
This is so true!

This is a good read about the subject....

http://www.stevemeadedesigns.com/boa...hat-you-think/

Last edited by BadHabit2Break; Nov 5, 2012 at 11:34 AM.
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Old Nov 5, 2012 | 01:45 PM
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If I wanted to make the inside of my car quieter from outside road noise or even noise maybe from other suspension changes what would I use and where? Also someone told me sometimes dynamat in extreme heat smells.

Also I would want to use the method that adds the least amount of weight.
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Old Nov 5, 2012 | 01:54 PM
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Originally Posted by 13shelby
If I wanted to make the inside of my car quieter from outside road noise or even noise maybe from other suspension changes what would I use and where? Also someone told me sometimes dynamat in extreme heat smells.

Also I would want to use the method that adds the least amount of weight.
No idea about the smell. Least amount of weight - dynamat superlite.
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