I have been trying to patina copper with ammonia, salt, etc. with
the fume chamber technique. My question is not really about that,
but if you can solder copper components after they’ve been
patina-ed. I’m thinking no but I thought someone out there may know
otherwise. Like, if I patina-ed a piece of copper and then
sweat-soldered it to copper or silver which hasn’t been treated.
I’ve been searching on the web but it’s hard to find the answer to
my specific question. Thank you.