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Date:         Sun, 25 Apr 2010 12:40:38 -0400
Reply-To:     Chris S <szpejankowski@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Chris S <szpejankowski@GMAIL.COM>
Subject:      Re: Peel and Seal Complete-Pics
Comments: To: Michael Sullivan <sandwichhead@gmail.com>
In-Reply-To:  <s2ieccfedcc1004250857va3a6e4cbnbc51a6ab364865d5@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

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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