Sound Dampening Priority - Chevy Impala SS Forum
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post #1 of 12 (permalink) Old 08-07-2014, 07:14 PM Thread Starter
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Sound Dampening Priority

Because it would break my bank doing the whole car at one time, planning on doing sections at a time. System consist of 12s in the trunk, 6 1/2" components in the door and rear deck, where should I start first?

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post #2 of 12 (permalink) Old 08-07-2014, 10:16 PM
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I used fat mat. 100sft did my whole trunk and inside car - roof and doors. Way cheaper than dynamat.


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post #3 of 12 (permalink) Old 08-08-2014, 09:17 AM
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I'd look into the tiles from Sound Deadener Showdown instead of plastering the whole car with Fatmat. I bought a roll of Fatmat years ago and used it, it's better than nothing but heavy and you need a lot of it, if I were to do a full system again I'd look in to the mass loaded vinyl from SDS instead of asphalt/butyl based products like Fatmat/Dynomat etc. It costs more per square foot but you use a lot less of it.


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post #4 of 12 (permalink) Old 08-08-2014, 03:55 PM Thread Starter
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But where to start applying it first since I'm doing it in stages?

Charles Spradley
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post #5 of 12 (permalink) Old 08-08-2014, 04:09 PM
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Probably front doors and rear deck first to eliminate rattles and dampen any effect the surrounding materials have on the speakers. It would be best to seal up any large areas on the front door, these cars are enough enough the panels are likely to crack in a few spots too, put something on the back of the door panels too. Trunk lid will probably need a little for the subs.


95 DGGM SS. Cam and headers, boring stuff, classic tags, garaged
15 Durango R/T AWD, Fiat with a Hemi and 8 gears
15 Charger SXT AWD
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post #6 of 12 (permalink) Old 08-09-2014, 04:51 PM Thread Starter
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Thanks, that's what I was wanting to know. Looking at using this brand of matting, any thoughts?
https://gtsoundcontrol.com/shop/GTMAT-110-MIL/

Charles Spradley
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post #7 of 12 (permalink) Old 08-11-2014, 09:36 AM
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Quote:
Originally Posted by kilr95ss View Post
Thanks, that's what I was wanting to know. Looking at using this brand of matting, any thoughts?
https://gtsoundcontrol.com/shop/GTMAT-110-MIL/
Personally I wouldn't buy it since it's asphalt based, basically the same thing as Grace Ice Shield used for roofing. I've used similar things in the past and while it's better than nothing, it's messy, heavy, and smells. It's also more prone to failure as it'll harden and crack over time. I had a roll of Fatmat (basically the same thing) that I used some of on my old Caprice, fortunately I never put it on my Impala. I used a little bit in my TL just since I still had it but the mass loaded vinyl stuff is the way to go these days. I would definitely look into http://www.sounddeadenershowdown.com/, might cost more but you'll use a lot less, their tiles are supposed to only be used on 25% of the surface you want covered instead of covering everything you can with a layer or two with the asphalt stuff.


95 DGGM SS. Cam and headers, boring stuff, classic tags, garaged
15 Durango R/T AWD, Fiat with a Hemi and 8 gears
15 Charger SXT AWD
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post #8 of 12 (permalink) Old 08-11-2014, 07:41 PM Thread Starter
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Thanks, might get enough tile for one door and see how well it performs.

Charles Spradley
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When In Doubt, Gas It! This Will Either Fix The Problem Or End The Suspense.
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post #9 of 12 (permalink) Old 08-16-2014, 09:33 PM
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i ordered and did my own trunk. just tapping on the fender from the outside with my knuckle sounds like a "thunk-thunk". no rattle, and hardly noticeable from the outside. unless i really turn it up.

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post #10 of 12 (permalink) Old 08-17-2014, 09:43 PM Thread Starter
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Anything dampening is better than nothing

Charles Spradley
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