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I'm moving into various aspects of welding at an advanced age, and with one of my children (who is primarily into MIG at the moment). So ...

It seems that a lot of folks (not constrained to brass repair) are using oxy/propane rather than oxy/acetylene.

Please discuss pros and cons.

the elephant wrote:I have never soldered on brass instruments with anything but acetylene.

Sorry. I was a bit unclear. I'm not so concerned with soldering (soft or hard) on brass instruments with this particular question. I have an air/acetylene set-up now that should work well for that.

I'm more concerned with gas welding (rather than soldering or brazing) -- if I should choose to move in that direction. Propane seems a lot mover convenient (easier to get, generally safer, etc.). Maybe not quite the degree of heat as oxy/acetylene, but definitely good enough. But heavier than air and so it has some additional (at least minor) risks in that direction.

I guess one thing I'm wondering is: Why not use oxy/propane rather than oxy/acetylene for general welding?

bloke wrote:...

I can't believe I watched that whole thing. What about the guys who sell acetylene and acetylene accessories?

I keep waiting for someone(perhaps Bloke) who will come on this thread and announce: I sell tubas and tuba accessories.