Re: [DML] Re: Re Road Noises

["Don Ekhoff" <ekhoff@xxxx>]

Steve,

The lead foil/damping foam material is pound for pound a very effective
solution. The lead will not pass airborn sound energy because it is non
pourous and limp. Any energy hitting it and causing it to vibrate is
absorbed by the associated foam. The reason I started this thread was to
see if someone had done their homework and was marketing a kit. In the name
of performance (of both kinds) I will take high tech lead foil based
products any day.

Don

FYI; I spray undercoated the entire underside of one of my D's and could
tell little or no difference in the amount of road noise that we are all
familiar with. It needs to be thick and sorta foamy to be effective and
Ziebart and such is this and really only for corrosion (although they
advertise for more).


----- Original Message -----
From: "Steve Rubano" <srubano@xxxx>
To: <dmcnews@xxxxxxxxxxx>
Sent: Monday, December 18, 2000 7:35 AM
Subject: [DML] Re: Re Road Noises


> Lead?! Why would anyone want to use lead for a sound barrier on the D
> or any car for that fact!! You know how much weight you would add to
> the car? That would cause the car to have LESS performance (slower,
> crappy gas milege..etc) which is something you don't want. You could
> also damage your engine and/or tranny with the added weight by making
> them work harder than they should be. Use neoprene mats, you can
> easily find sound deading material at any good audio store..I found
> that PC Richards is selling them (NY area at least). They use the
> mats in the doors and trunks of cars to sound proof it so that the
> stereo sound will be greater and resonate in the car...no sound
> escaping from INSIDE the car. They also have Rubberized undercoating
> for the car that is a sound deading material. You simply spray it on
> the underside of the car. Although you might be able to lift the
> carpeting in the D and spray it on the inside floor, you won't see it
> after the rug is put back and it won't cause any headaches if you
> need to do some repairs under the car (stuff gets everywhere). Most
> Auto manufactures use this stuff to minimize the road noise (look
> under you other cars besides the D, it's the black rubbery stuff that
> has a wrinkle finish to it). The Draw back is that it is messy, if
> you are doing it yourself, and not as good as the mat...but if you
> use it in conjunction with the mat, it may decrease the road noise
> considerably.
>
> Steve
> www.dmcman.homestead.com
>
> --- In dmcnews@xxxxxxxxxxx, "jtrealty@xxxx " <jtrealty@xxxx> wrote:
> > A good source for lead is a vendor who sells lead for radiation
> > shielding. When I had my hollow metal company we had from time to
> time
>
>
>
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