Date:         Mon, 20 Jan 2003 13:03:32 -0600
Reply-To:     Stan Wilder <wilden1@JUNO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Stan Wilder <wilden1@JUNO.COM>
Subject:      Re: POR15 Undercoat
Comments: To: pokey@VANAGON.ORG
Content-Type: text/plain; charset=us-ascii

I just Por15 coated some spots on a 66 Westy. (November 2002)
It is important to remove as much rust as possible before you apply any
prodct.
I used a 3000 psi power washer with Phosphoric Acid after I either wire
brushed, sand blasted or sanded away as much surface rust as possible.
I neutralized the Phosphoric acid with a mixture of baking soda after I
finished and before I applied the POR15.
The 1.00$ car washes don't put out enough pressure to remove anything but
light soil but the 3000 psi rig will strip the insulation right off your
under van wireloom if you hit them directly with the pressure.
Considering that the 66 was completely gutted inside and out I think I
got the acid wash into every crevice with the pressure and found rust
under paint, under Bondo, under fiberglass once I blew them away. Normal
cleaning would not have found these hidden rusted areas.
I'd say preparation is about 50% of getting good results on rust removals
and prevention.

Stan Wilder

On Sun, 19 Jan 2003 13:52:17 -0500 80 Westy Pokey <pokey@VANAGON.ORG>
writes:
> I drive a syncro westy but this thread should ring true for
> anyone with a bus that would like to drive in winter who is
> worried about rust.
>
> I am in a bit of a unique situation at the moment. The
> propane tank is out, and the saddle gas tank that I'm having
> put in under the passenger sliding door is not installed yet.
> Additionally, there is some work that requires the removal of
> the driveshaft. This leaves the bulk of these sections free
> of obstructions.
>
> To me, this is the perfect oportunity to sandblast or
> wirebrush and then coat the entire middle section of the van
> with POR15. Does anyone see a problem with doing this? My
> main concern is trapping moisture.
>
> I think it would be way too much work to effectively coat
> underneith where the floorboards meet the frame (if I'm wrong
> tell me), and I can't see an easy way to finish the inside of
> the framerails (again let me know). These are two stumbling
> blocks but even with these limitations as long as none of the
> existing drainholes were blocked wouldn't this be a pretty
> good thing to do if I were so inclined?
>
> Yes the middle section is just one part of the van, but I
> figure I could do this in stages, slowly applying POR15 to
> the entire underbody of the van. I am also thinking about
> extending up the side of the van to coat the rocker panels of
> course this would all be topcoated to prevent UV decaying the
> POR15.
>
> Thoughts?
>
> Thanks,
> Chris
>
>

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