Date: Sun, 25 Apr 2010 11:55:03 -0500
Reply-To: Michael Sullivan <sandwichhead@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Michael Sullivan <sandwichhead@GMAIL.COM>
Subject: Re: Peel and Seal Complete-Pics
In-Reply-To: <j2k5ebe10a1004250940x442b5384tc36e25905f43c837@mail.gmail.com>
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I was JUST feelin good about my efforts and now I gotta think of taking it
up a notch. Darn. Well since the panels seem to be in good shape and
pulling them was not hard, maybe I will do a test of how they sound now and
then an upgrade in the future. I am replacing the foam around the door
hadles, cranks, and locking mech, tho.
Michael in San Antonio
91GL Weekender AT 2.1L 'Gringo'
73 Beetle
On Sun, Apr 25, 2010 at 11:40 AM, Chris S <szpejankowski@gmail.com> wrote:
> The peel-n-seal deadenes sound which is transmitted through sheet
> metal by resonance. It is a mechanical means of transmission where the
> panel vibrates in reponse to sound pressure waves thereby creating
> like sound waves on the inside of the vehicle. The next step is to
> provide a layer of material on the inside of door panels, for example,
> which absorbs sound waves which have made it through or come from
> other sources, such as the higher frequency vibrations from tires and
> suspension. Some of these sounds are transmitted by load bearing
> structures of the unibody. The peel-n-seal material does little to
> absorb these sounds so you will need some acoustic foam type material
> which has different sound attenuation properties. Think of a recording
> studio and their walls, for instance. The foam lining studio walls
> disperses the highly directional high frequency sound waves.
> Peel-n-seal reflects them. A additional layer of closed cell foam
> will help with these high frequency sounds. Look up Ensolite. Also,
> Frostking is a closed-cell self-adhesive insulation which also comes
> in rolls and its aluminium backing can be peeled off easily. I have
> read of good results with Ensolite, but have not read much about
> Frostking, although I am using it with Peel-n-seal as a base layer to
> quieten my Beetle TDI's engine compartment. You may also have luck
> finding acoustic closed cell foam in the larger music/DJ stores.
>
> I also copied the list on my email. Maybe someone can chime in with
> their experience.
>
>
> 2010/4/25, Michael Sullivan <sandwichhead@gmail.com>:
> > Hey, Chris...please elaborate. I am in process of detailing before
> > re-install and am adding new foam sops to the door handles and mechanism,
> > etc. Have a good day.
> > Michael in San Antonio
> > 91GL Weekender AT 2.1L 'Gringo'
> > 73 Beetle
> >
> >
> > On Sun, Apr 25, 2010 at 8:54 AM, Chris S <szpejankowski@gmail.com>
> wrote:
> >
> >> Nice work! As you pointed out this wll help with resonant sound
> >> transmission. You may want to consider some closed cell foam material
> >> to help reduce sound waves which do get sufficiently reduced by
> >> dampening panel movement.
> >>
> >> 2010/4/23, Michael Sullivan <sandwichhead@gmail.com>:
> >> > Still have the slider to finish, but here are some before and after
> >> pics.
> >> > Bought 6 rolls($100) and will have just a little bit left. That will
> do
> >> both
> >> > front doors, front cabin area, slider, and panel behind
> driver(opposite
> >> the
> >> > slider). Tips: Don't attempt on a really warm day. Don't atempt on a
> >> really
> >> > cold day. Heat gun really sets the material and will be a real PI to
> >> > remove. Almost felt bad covering the pristine white panels in the
> back
> >> > area.
> >> > BTW-If you have ever gotten your hand up inside the candy or soda
> >> > vending
> >> > machine, you will have no problem with the door panels. If you are a
> >> > ham-fisted oaf, you know who you are, then don't try it.
> >> > http://picasaweb.google.com/sandwichhead/45010101?feat=directlink
> >> > Michael in San Antonio
> >> > 91GL Weekender AT 2.1L 'Gringo'
> >> > 73 Beetle
> >> >
> >>
> >>
> >> --
> >> Chris S.
> >> "No solution is too complex to be executed incorrectly"
> >>
> >
>
>
> --
> Chris S.
> "No solution is too complex to be executed incorrectly"
>
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