[R-390] aluminum knob/panel paint stripper?

[Barry]

I've had success with aircraft-grade paint stripper (made for stripping paint from aluminum surfaces).  It's available in a spray can and can be bought at automotive supply stores.  It all depends on what was used to paint the panel, though.  I'm pretty sure they weren't all painted alike and most have been repainted by now so there's not much telling what really is on one now.  The aircraft-grade stripper is not supposed to react with the aluminum surface as some stripper might do.

Good luck with it,
Barry - N4BUQ


> I haven't yet found a stripper that works on an original panel....the
> stuff is like stone.  I have tried several with no luck.  I've gone
> to glass bead blasting the panels and then lightly zinc chromating
> them prior to top coating.  I usually wait a few weeks for the
> chromate to fully cure before top coating.  I've had no problems
> with damage to the engravings.
> 
> Media blasting probably would be better...soda or plastic might be
> the ticket.
> 
> Cecil
> K5DL