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help!! soldering brass tube

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mick a:
hi guys
was wondering if anyone new the best solder to use for brass tubing
i made a canopy for the ka3 (island models ) excellent kit
it was all good then one part came apart (heavy handed ) and then as i heated it all came apart !!!
i used silver solder and flux but it dosent want to flow it keeps running and ending up like tear drops
any ideas ??

rogallo:
It is simple really. A high wattage iron with lead solder and flux that will heat the joint quickly without heating up the entire frame. And lots of patience.... :D

Fred:
Hey Mick,

Welcome to the forum :)

That's a bummer! But same as Ralph :)

Also, if this is looking like drops, that mean, to me, too much heat!
Heat the frame, not the solder if you see what I mean. But not red hot. The solder should melt by contact and go everywhere.
You can also sand the tubes a bit if you don't have flux. This might help also a bit, but the key here I think, is the heat applied.

When that do drops like this, this is not a strong bond unfortunately

mick a:
hi
thanks for that
will give it another go

johnfireball:
Stick the pieces in a pot of sand, lined up with solder join protruding. when soldering the sand holds the other joints together and helps stop heat travel.
John. .

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