On Friday, 13 September 2019 13:15:14 UTC+1, AJH wrote:
I need to solder a patch onto a rusty diesel tank, previously I used
60/40 tin lead solder but this is not readily available locally will a
lead free plumber's solder still wet fluxed steel?

AJH

It's the flux that determines wetting or not. I'd reach for killed spirits for that job, but rosin can do it. Or you can try plumbing flux eg Laco.


NT