Hi All,
Here's a  few photos of some Seam Rust.
hope the link gos though OK...
best,
John C...
http://www.kodakgallery.com/I.jsp?c=wua8um1.cwobmq1&x=0&y=-uh1tgf

-------------- Original message --------------
From: "John C..." <Trvlr2001@COMCAST.NET>

> When I said sanding, I was refering to a die grinder, with a sanding disc.
> That Will remove the rust.
> If it is too deep, your are right on, though!
> Blasting would be best.
> Depends on the extent of the rust.
> One may even have to "replace" the metal if it's too bad.
> JC...
>
> -------------- Original message --------------
> From: Mike
>
> > Even sanding won't remove all of the rust. Only glass beading the spots,
> > or a chemical applied to the rust will get every molecule of rust either
> > removed or converted. You have to get down to the bottom of the rust pits;
> > sanding alone cannot reach that deeply without removing a major thickness of
> > the metal.
> >
> > Mike B.
> >
> > ----- Original Message -----
> > From: "John C..."
> > To:
> > Sent: Friday, March 21, 2008 1:37 PM
> > Subject: Re: POR Patch as a seam sealer?
> >
> >
> > >I guess this was my point....
> > > Rust cannot be "fixed" from the outside.... or .... the inside.
> > > It lies on the 1/2" or so flange...
> > > In the middle.
> > > Yes, you can stop the problem that caused it in the first place.
> > > The influx of water from inside plumbing from the water tank, tubing, sink
> > > etc.
> > > You can reseal the windows, the Camper Outlets, whatever.
> > > You can spray the rust oxidating compounds,
> > > and hope they penetrate as deeply as possible. ( wouldnt count on that
> > > 100% )
> > > But the rust Is Still there,
> > > No matter what, until the seam is seperated and sanded, cleaned, prepped
> > > and re-sealed.
> > > YMMV
> > > JC...
> > >
> > > -------------- Original message --------------
> > > From: JordanVw@AOL.COM
> > >
> > >> In a message dated 3/20/08 6:40:04 PM Eastern Standard Time,
> > >> greenvanagon@GMAIL.COM writes:
> > >>
> > >>
> > >> > Has anybody used POR Patch as a seam sealer?
> > >> > http://www.imperialrestoration.com/products.php?category=8#18
> > >> >
> > >> >
> > >>
> > >> if you smear this stuff on your outside seams without fixing the real
> > >> problem
> > >> - the point of entry of dirt and water on your seams from behind - then
> > >> it
> > >> will only conceal the rust eating the metal away and when you finally do
> > >> see
> > >> the damage it will be alot worse.
> > >>
> > >> dont mask the problem. fix it from behind.
> > >>
> > >>
> > >> **************
> > >> Create a Home
> > >> Theater Like the Pros. Watch the video on AOL Home.
> > >>
> > >> (http://home.aol.com/diy/
> > >> home-improvement-eric-stromer?video=15?ncid=aolhom00030
> > >> 000000001)