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  #1  
Old 05-05-2003, 06:30 AM
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Dynamat and Alternatives

I have found numerous alternatives to dynamat beginning with the dynamat Xtreme product.

I want to dampen the interior of my 500E while I am tearing out an alarm and preparing to install a new sound system.

I found a couple of other products such as scosche and b-quiet.
One interesting website www.b-quiet.com as well.
I also found a product called fatmat, very reasonable prices (www.fatmat.com).

I am looking at product performance and weight as well as cost.

Any advice or experiences with products and placement within the W124 chassis would be appreciated.

Thanks,
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1992 500E Smoke Silver
2002 CLK55 AMG Cab Silver/Black
2001 Harley Fatboy - Pearl White
2004 F150 FX4 Silver/Grey
1969 GTO Liberty Blue
1956 F100 Black

Last edited by Bryan Harter; 05-05-2003 at 10:35 AM.
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Old 05-09-2003, 09:34 PM
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I will only speak of my experience with dynamat. It is very heavy and does not stick well to the bottom of a surface. That is, I needed to put it on the bottom of a rear deck lid to reduce vibration and resonance. It kept peeling off over time. I used the heat gun to stick it on too. Ultimately, I had to put it on the top of the deck and then recover the deck with new carpet material. I'd rate the "improvement" marginal. Tod
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  #3  
Old 05-10-2003, 12:23 AM
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i am poor and cheap so i go tothe hardware stores and but the things they use to join roofing. i don't know what it is called but one side is tar, and another side is aluminum. and it works really really well. down side is when u put it upside down in the summer it will peel off.
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Old 05-10-2003, 01:19 AM
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I used that too, on my old W123 300D. It didn't peel off in the summer heat though
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Old 05-10-2003, 08:52 AM
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Cool

In high school, my best friend and I gutted his '66 Mustang, cut out the floorboards (rust) and then welded in new metal.
Used about 2 gallons of roofing cement to seal the cabin before replacing the interior. That think was tight....didn't really do it for sound, but thinking back it probably improved the sound dramatically.
The good ole days!!!
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1992 500E Smoke Silver
2002 CLK55 AMG Cab Silver/Black
2001 Harley Fatboy - Pearl White
2004 F150 FX4 Silver/Grey
1969 GTO Liberty Blue
1956 F100 Black
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Old 05-11-2003, 04:53 AM
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another thing to consider would be gutting your interior, and using some type of spray in or roll in truck bedliner (multiple coats) then just put your interior all back in. it will kill road noise big time. this is kind of a time consuming procedure and the smell will be strong for a week or so after you do it.

also where you have body panels that are hollow or have hollow cavities you can stuff a hefty bag in there and then take expanding foam and spray it in there. once the foam dries, pull it out, peel off the trash bag and you have a form fit foam sound deadening device. if you cant get the foam back out to pull the bag off you can always just leave the bag on there and just cut the excess off.

Hunter
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Old 05-11-2003, 01:59 PM
300SDL
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can anyone remeber what that roofing stuff is that works the same?
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Old 05-11-2003, 02:27 PM
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I believe the foil faced rolls are called bitumin (pronounced "*****-u-min") they may smell pretty harsh for a few weeks. I had a job in college doing some roofing....you heat the stuff with a large propane blowtorch....hot work !!
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1992 500E Smoke Silver
2002 CLK55 AMG Cab Silver/Black
2001 Harley Fatboy - Pearl White
2004 F150 FX4 Silver/Grey
1969 GTO Liberty Blue
1956 F100 Black
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Old 05-11-2003, 02:47 PM
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If you go here:http://www.mcmaster.com/ and put <sound damping> in the search, an info. page comes up with some good tips. Further site negotion reveals a bunch of different types of sound management products. I've used their quilted insulation and their mass loaded dampening material with good results. Some of it's very high end industrial stuff and pricey, but look around the site for the more reasonably priced stuff.
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