Solder Wick (the flat copper braid) can be homemade by using liquid
rosin flux and dipping stranded copper wire into the flux, the finer
the stranding the better. I’ve gotten the liquid flux from Radio Shack
before although it’s been years.
This flux is also very handy for electronics type of soldering;
tinning wires, repairing cracked foil leads on a circuit board, making
up connectors etc.
Use with a small pencil type soldering iron, a wet sponge or rag and
rosin core solder. Tin the tip of the iron and wipe it off on the
sponge to keep contaminants off.
There is also a plunger type device called something like a
solder-pul-it to remove large amounts of solder. Also available at
…you guessed it… Radio Shack.
IMHO The full procedure would be first the solder-pul-it. Next the
wicking and last the soaking in HCl Acid. Depending on the severity
of the contamination.
HTH Glad to have something to contribute.
Dan Wellman (usually lurking)