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

[Thomas Frobase]

I use a medium wire wheel, the paint is usually brittle, comes right off.  I
then sand blast the knobs and powder coat them.  They will never need redone
again! ... 73, tom, N3LLL

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
On Behalf Of Cecil
Sent: Monday, May 20, 2013 5:43 PM
To: Barry
Cc: Dave Sampson; r-390 at mailman.qth.net
Subject: Re: [R-390] aluminum knob/panel paint stripper?

I tried it...it just laid there....for an hour...not even a wrinkle...I was
amazed.

Aircraft stripper...in a turquoise and white can....may be others....

Cecil

Sent from my iPad

On May 20, 2013, at 3:42 PM, Barry <n4buq at knology.net> wrote:

> 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
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