[R-390] front panel corrosion

[Paul H. Anderson]

Clean the panel.  Strip the paint the best you can with autobody or
aircraft spray on paint stripper (this softens the paint in the engraved
letters for blasting - if you're careful, you can do just the front with
no damage to the back).  Clean the panel again.  Use glass or plastic
beadblasting to clean the front panel of remaining paint.  When clean, you
may see pits.  Refill pits with aluminum based autobody filler if deep.
Paint.  Bake.  Silkscreen if not engraved.  Install and enjoy.

If you have an engraved panel and the pits are bad or are in the
lettering, I'd toss the panel - easier to get a spare than to redo that
kind of stuff.

Paul

On Mon, 5 Jul 2004, Bob Camp wrote:

> Hi
>
> One thing that is a little expensive but it may help the process. A lot
> of hobby shops sell little air brush gizmos that will also do sand
> blasting. Obviously the chunks of sand they blow are pretty small. They
> should be just about perfect for cleaning out pits in a damaged front
> panel.
>
> There are also chemical prep agents that might help with the cleaning
> process.