undercoating to hold down road nosie ? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 11-04-2006, 06:31 PM   #1
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Default undercoating to hold down road nosie ?

I was thinking of getting my Bonnie undercoated like either Zebart or do it myself with spray cans, would it help quiet down the road and tire noise ? Any draw backs to doing it ?
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Old 11-04-2006, 07:12 PM   #2
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unbolting anything later...
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Old 11-04-2006, 08:31 PM   #3
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tear out the interior and lay down peel and seal....i did it, and it has been remanked by more than one member how quite my car is on the inside
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Old 11-04-2006, 09:02 PM   #4
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Quote:
Originally Posted by 1993 SLE
tear out the interior and lay down peel and seal....i did it, and it has been remanked by more than one member how quite my car is on the inside
i did that also.. and didnt notice hardly anything for how much work it was

http://www.bonnevilleclub.com/forum/...ight=peel+seal

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Originally Posted by harofreak00
i noticed an improvment in the bass frequencies, and trunk rattle, but not enough to justify doing this...

i did not notice any difference with road noise...
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Old 11-05-2006, 12:59 PM   #5
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true...but i did 3 layers
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Old 11-05-2006, 07:30 PM   #6
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DO NOT GET UNDERCOATING UNLESS YOU STRIP AND ACID BATH THE BODY, or your car is new and the under-body paint is still perfect!!!
Anything less will trap moisture under the coating in nooks and crannies, and will cause your car to develop deep rust in welds, creases, and bolt-holes.
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Old 11-05-2006, 07:51 PM   #7
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this car came from Virginia and is rust free underneath, thats another reason I was going to do it but mostly for the road noise. Also i only keep them about 4 yrs and 250k miles. My buddy oils the bottom of his with Fluid Film and they stay rust free for years. His are 1994 mini vans with 200k on them and you can break loose a brake line with a cresent wrench. I mainly want the sound deading
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Old 11-05-2006, 10:07 PM   #8
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that is why peel&seal is great....or if you feel like spending money do dynamat....
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Old 11-05-2006, 10:36 PM   #9
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I have to get me some of this peel and seal. Is this also available at Home Depot? I don't care about road noise, I just want to stop the minor rattling from the thump in my trunk.

Ditto on the undercoating causing problems. If it is completely rust free I guess I'd do it, but I'd make sure before I spent the money on it. But if it'* rust free after all these years I wouldn't see the need to do it now.

If the only reason was to decrease road noise; I think other things would reduce road noise more effectively.
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Old 11-05-2006, 10:38 PM   #10
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Quote:
Originally Posted by bonnie94ssei
I have to get me some of this peel and seal. Is this also available at Home Depot? I don't care about road noise, I just want to stop the mkinor rattling from the thump in my trunk.
its at Lowes for sure....dont know about Depot....and it will work just as good for you Pete
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