3 Dec
1999
3 Dec
'99
5:57 p.m.
At 04:35 PM 12/3/99 -0500, someone asked:
It says Sn62 so 62% tin. I was told that it's 2% silver. I assume the
reaminer is lead. I checked Kester's website and they don't list the
stuff. I've send them a message asking for the composition and melting point.
I don't
know what the exact MP of this stuff is but my iron (Weller EC
3000) is set to less than 600d and it melts and flows well at that
temperature. I don't know if the temperature control is accurate or not
though. This is 2% silver.
What is the rest of the solder? Tin, lead, something else?
"Silver solder" is an extremely vague term, covering everything from
special low melting point Indium-Silver alloys to 2% Silver/tin/lead
solders to brazing, depending on the context it is used in.
I have some 4% silver stuff too. I think 2% and 4% are what's normally
used for electronics work.
The indium-rich solders are *really* neat stuff, if you ever get a
chance to work with them. Melting temperatures down to near room temperature
are available, as well as entire series of solder alloys with graduated
melting temperatures for building up intricate assemblies. And many indium
solders will even wet and stick to *glass*.
I just missed get a 2 pound can of 97% Indium solder paste in a scrap
place last week for $2. A friend of mine saw it first and grabbed it.
Grrrr. He said the Indium paste was great for working outside. You could
twist the wires together, drip them in the Indium paste then heat the joint
with a match to solder it.
Expensive stuff, as well!
I'm sure!
Joe