Re: [T3] Foaming heater channels

[John Jaranson <jaransonT3@comcast.net>]

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On Nov 11, 2004, at 3:32 PM, Jim Adney wrote:

> On 11 Nov 2004 at 13:35, D Ruesch wrote:
>
> > It appears that the PO of my 69 Fastback filled the heater channels 
> > under
> > the doors with that expanding foam that's sometimes used for 
> > insulating
> > around the doors and windows in houses.
>
> It was probably done in an attempt to fix some other problem. Is the 
> actual
> heater channel plugged, or is the foam just in the space around the 
> heater
> channel? I'd be concerned that this will wick water in somewhere even 
> worse
> than before, or that your rocker panels actually consist of Bondo over 
> foam.
> I'd go over them with a magnet.
>
> John J., could one fabricate a decent rocker repair with carbon fiber 
> over this
> foam?
Sure you could make a carbon or glass composite rocker repair panel.  I 
think I would be a little concerned with making a complete rocker skin 
out of glass or carbon since this is a structural area.  Not that it 
couldn't be made structural, it is just harder to do and do right.  The 
polyurethane foam (like Great Stuff) would make a pretty good core 
material, especially if it is foamed oversized and then sanded back to 
shape.  This cuts the skin off the foam and opens the cell structure of 
the foam up to get a better bond between the core and the composite 
skin.

Later,
John Jaranson
'66 Square (Sophy)
'71 Fasty (Jane - darkside project in waiting)
various parts.....don't we all.
http://mywebpages.comcast.net/jaransonT3/jaransonT3/
http://mywebpages.comcast.net/jaransonT3/2004Invasion/
http://mywebpages.comcast.net/jaransonT3/notavwclub/

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