ORIGINAL: JustPlaneSweet
'Never, ever' had any trouble with it in 30+ years of use. We are not talking about a circuit board here.
Stan
But we were talking about soldering electrical connections. Without qualifying your suggestion, a newcomer to soldering could easily interpret it to mean that acid paste is OK for soldering electrical connections, which it absolutely is not. Try using acid flux to solder 26g servo leads and see how long it takes for the wire to corrode away. A couple of months at most.
Pete