Originally Posted by TromboneAl
Anyway, I've noticed that the insulation on these small wires seems to be painted on. I concluded that the paint is designed to dissolve under the heat of the soldering iron. Is that how it is supposed to work?
I gently scrape the insulating coating away with an Exacto knife before soldering. Then, for the type of connection you made, would solder with a 25w or 40w iron and a fine diamenter 60/40 rosin core solder.
The insulation on your wires must have disolved as your connections look fine. Nice and shiny.
Be sure to provide some strain relief when you reassemble.