From: "zoomkat" <Zoomkat@...
Sent: Saturday, November 05, 2011 11:03 PM
Subject: [pop-pop-steamboats] Re: Tony - meths lamps, wick tubes, Parasene
> That's interesting! I have the below butane torch in my collection.
What a Price!
I got the GoSystem equivalent for a friend's 78th birthday as it can be
used one handed, has piezo and is flare-free.
> What is the silver content (or manufactures name) of the rods you use?
I've been using Johnson Matthey Easy-flo and Easy-flo 2, which are now
discontinued and replaced by cadmium-free Silver-flo 55 which I've not
Melting range 620-630C
I've always used 1mm rod or 1/2mm wire, and hammered it flat if I need
I think your little torch would be Just Right for localised joints in
jewellery sized pieces in brass, copper, steel and silver. Anything small
enough for it to get cherry red comfortably will be OK - visual temperature
You'll need a suitable flux - I have a pot of Easy-flo flux which I may
need to change if it doesn't work for the new filler.
By 'localised' I mean I think it would make the joint a finger ring made
from silver wire, but probably wouldn't braze that same ring to a flat
sheet. For a job that's just beyond its scope one option is to use your
MAPP torch to bathe the work in heat to dull red, which won't melt any
previous brazing, then go in to the joint itself with the little torch to
complete the job.