Zoltan,

I had done the interior side before - just as you described, with por-15 and
new insulation. sorry I did not mention. seems that leaving the primer open
on the outside during rain was the mistake.
florian

On Wed, Oct 14, 2009 at 3:22 PM, Zoltan <thewestyman@gmail.com> wrote:

> The FLAP store's spray can style thing is useless.  You would have to use
> something more professional to make sure, it's good.  The best is to buy a
> set of spray gun at Harbor Freight and then a pint of primer from an auto
> paint store.  But I would paint it with POR 15 first anyway.
> The only thing is wrong with the picture is, that you did not clean the
> rust out from where it comes from.  Or at least you did not mention it.
>  Namely, the kitchen unit has to be pulled out of it's place, take out the
> insulation (which really is the culprit) and clean the area behind it,
> vacuum, then paint it with POR 15, TWICE, then install non water absorbing
> insulation, ---  and only then scratch out the seam sealer from between the
> two panels on the outside of the van, wire wheel that area also before POR
> 15 painting, twice, and only then use the primer, etc.
> You can use a masking tape all along the seam top and bottom to avoid over
> painting and to have a boundary.
> Don't rush this job, because the rust is working faster under the paint
> incubated than if it's open.
> Well, that's about all about this subject.  I do this often.  I'm in
> Lynnwood, WA.
> Zoltan
>
> ----- Original Message ----- From: "Florian Speier" <
> groups.florian@GMAIL.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Wednesday, October 14, 2009 2:32 PM
> Subject: is primer/sealer weathertight?
>
>
>  A few weeks ago I did my seams and surrounding three inches, at the
>> typical
>> rust spot where the camper stuff is welded in on the drivers side. I ran
>> out
>> of time after applying primer/sealer and thought thats ok to wait a while
>> at
>> this stage.......
>> now we had two days of solid rain, and I have micro bubbles under the
>> primer
>> about an inch away from the seam, and worse, something slightly
>> rustcolored
>> at a few seam spots.
>> Obviously I have to redo a few things, but I was wondering whether my
>> assumption that primer sealer is weathertight was wrong, or if I did the
>> whole thing wrong......
>>
>> thanks
>> florian
>>
>
>