In article , AJ
writes
Ian Stirling wrote:
tony sayer wrote:

In article , alterego
writes

I want to make a section of lead flashing to wrap around an external
corner. This requires a soldered joint or two but I can't find out how
to do it. I'm a fairly experienced DIYer and not afraid to learn
something new. Can anyone tell me how to join two pieces of lead
please? Thanks

Err' 'um solder?.

Plumbers solder should do the trick, and a small gas blowlanp. Practise
well on some scrap first. Solder is a mix of tin and lead so the melting
point is slightly lower than lead alone, but theres not much in it so be
very careful not to melt the whole shooting match.....


I know that this causes corrosion in the case of lead-acid batteries.

You get corrosion between the solder and the lead.

I don't know if this happens with flashing in air.


The plumbers I have seen doing this used a oxy / aceteline kit with a
special torch which gave a very small and precise flame, they used lead
bars as the filler - not solder, the end result was superb.

They did not use blow lamp style heating probably because of the area of
heat you get from it - although the oxy / acetelyne can be hotter it is
far more precise and controllable. I suppose it depends on how much you
are doing. What might give the required heat and precision is one of the
small gas powered soldering irons - some heve small burner attachments,
might be worth buying one and practicing on some scrap lead.

Well I've used plumbers solder in the past and its been fine. Lead is OK
too except that it melts at the same temp, so unless your "very"
careful!

Still the art is in that small flame as described you don't want to melt
more then U have too.

Never known it to corrode at all...
--
Tony Sayer