I am soldering feeder wire and also soldering rail joints on code 100
I have some electrical repair solder I just purchased and it says it is
lead free, 96% tin and 4% silver, with rosin flux core.
Will this work?
I see reference to Rosin Core solder that is 60% tin and 40% lead in
some railroad books. Is this better or is my mix better, or does it
matter at all?