Grinding my own flux vs buying it pre-mixed, night and day difference
I used to just grab the standard borax mix from the supply shop, never really thought about it. Then about 6 weeks ago I ran out mid-project and tried making my own with boric acid and a little charcoal dust, following an old forum recipe. The stuff worked way better on some stubborn steel I was forge welding, it flowed smoother and didn't bubble up as much. I'm not saying store bought is bad, it's fine for most stuff, but making my own gave me more control over the heat range somehow. The time spent measuring and mixing was maybe 15 minutes for a batch that's lasted me through 8 or 9 sessions. Has anyone else messed around with custom flux recipes, or am I overthinking this? I'd love to hear what ratios work for you all.