I kinda specialize in rust treatment....very rewarding to stop, or
sometimes only delay it getting worse, metal cancer.

on the windshield rubber....and not at the point of doing a proper windshie
ld removal yet,  for sure probe abound under the rubber seal, like with
a sharp metal pick.
  If you're lucky ..like when you see a paint bubble...the metal is
still intact under there...
that's not hard to deal with.

If there is a hole clear through the metal....bummer, and all you can do
is get all the flaky rusty stuff out as best you can. Brush it out, suck
it out, blow it out...
Q-tips dipped in Osphro is on good way.

Then treat what metal there is with Ospho or some good metal prep.  The
stuff that says 'makes rust into hard primer.'

there are spray and liquid versions.  The liquid always seems to work
better to me.
Brush it on.
If there is a hole, fill that will Marine Tex .
Then when that's cured, primer the area with a really good metal primer
paint.
I like Zero Rust brand quite a lot.
then finally ..touch it up with proper touch-up paint in your van's color.

The touch-up paints I use in a small bottle with a brush are acrylic
enamels ..
They dry very hard ...and take Lacquer thinner ( not paint thinner ) for
clean up or rejuvenating and old bottle of touch-up paint.

of course..the sooner ANY evidence of rust is noticed and treated, the
better.
Get 'em while they're small.  Real easy to deal with then.

Scott

On 4/8/2016 2:10 AM, Jim Felder wrote:
> Ron's probably right, as the contour of the bottom of the opening slopes
> back toward the interior of the as far as I remember. If water is getting
> in, it's collecting in there. A good strong hook like Craftsman sells might
> allow you to pull the seal up enough to see, though.
>
> Jim
>
> On Fri, Apr 8, 2016 at 6:52 AM The Bus Depot <vanagon@busdepot.com> wrote:
>
>>> Has anyone tried to fix the lower rust problem below the
>>> windscreen WITHOUT removing the windshield?
>> Most likely the rust is under the seal as well. You're not likely to get
>> it all unless you remove the windshield.
>>
>> Ron Salmon
>> The Bus Depot, Inc.
>> www.busdepot.com
>>