On 05/28/2010 07:25 AM, Roger Shoaf wrote:
"Ned wrote in message
...
On Thu, 27 May 2010 22:17:36 -0700, Tim
wrote:

Oops.

After finishing soldering my Very First model airplane fuel tank, I went
to do the last step of any soldering project -- cleaning off the flux.

Unfortunately, while I know that the flux I use yields to scrubbing with
hot soapy water, I don't know what -- if anything -- will just take it
off. I'm experimenting.

Jeweler's pickle?
http://www.ganoksin.com/borisat/nena...ling-notes.htm

--
Ned Simmons

Won't the acid be a problem? While not stated, I had assumed that the fuel
tank was made of copper or brass. If you look at the last part of the cited
article it indicated that the acid pickle eats copper.

Actually the tank is made out of poor-man's tinplate -- it's a Dole
chunk pineapple can, cut up and bent on a Harbor Fright brake.

So, if I use any pickling solution that'll eat steel, I want to not
leave things in there for long.

--
Tim Wescott
Control system and signal processing consulting
www.wescottdesign.com