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

[rbethman]

FWIW, I found that laying a couple of layers of newspaper over the front 
face, and soaking it with lacquer thinner made it loosen up within a 
couple of minutes.

I used a plastic scraper to skim it off.

It doesn't oxidize fast at all once stripped.

Aircraft Specialty & Spruce STILL carries Zinc Chromate.

Bob - N0DGN

On 5/20/2013 4:11 PM, Cecil wrote:
> 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
>
> In any event..to answer your question...any stripper will not prep the aluminum panel for paint.
>
> Sent from my iPad
>
> On May 20, 2013, at 1:34 PM, Dave Sampson <challanger13041 at yahoo.com> wrote:
>
>> hello
>>   
>> have been reading about the process of painting front panels/knobs and it is clear that because of the rapid oxidation of aluminum that an aluminum prep chemicle is needed.....my question is , does the paint strip chemicle also prep the surface for priming? or do you use one chemicle to remove the paint and another to prep for new paint/primer?
>>   
>> thanks
>> 73s
>> dave
>>