I am having some fluxing problems with my jump welding. I've been trying to use Borax and only about 2-3 of 10 will actually stick. I've been heating, brushing, fluxing, heating. I've tried hitting hard, hardly hitting, thick and thin scarfs, (as well as flat and convex scarfs) and I'm still having varied success.

I'm looking into some commercial flux, and wondering what some of you other guys are using for flux. My supplier only carries E-Z Weld and Sure Weld, I know that some of you have mentioned Swan Magi-weld, and I know that Centaur Forge carries it, but is it really worth 5x the price?

I keep a Lincoln 100hd weld-pak, and use that when I'm in the field, but a 20a circut is not always available, and I'd like to have a more reliable jump weld capacity until I get around to an uber inverter system.

On edit... My forge is a NC Whisper Momma.

it might not be the flux at all
your heats are very important

even heat

Do you mean the whole shoe should be at welding temp? I can't seem to get much more than half of the shoe to that kind of heat. Maybe I need a bigger propane tank?

I've found it makes a difference where around the flame I place the shoe. If it is just to the side of the flame, it is hotter.