Years ago, when I first learnt to solder, I used a borax cone in a
dish with water to make flux.
I still do, because it’s how I was taught and it works well.
However, what i was never taught about was any H&S issues.
data sheets are confusing me; many seem to suggest that borax flux
is not a problem, some suggest you shouldn’t touch it, some say that
chronic exposure to the fumes causes coughing.
I’d be very grateful for any enlightenment!