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'[EE]: Old solder paste'
2001\01\22@122726
by
rottosen
I have a syringe of old dried out solder paste. Is there a way to
reconstitute it?
Maybe I could drip a solvent into it, but-- What solvent do I use and
how do I know when I have added enough solvent?
-- Rich
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2001\01\22@133422
by
steve
|
> I have a syringe of old dried out solder paste. Is there a way to
> reconstitute it?
> Maybe I could drip a solvent into it, but-- What solvent do I use and
> how do I know when I have added enough solvent?
We used to do this many years ago. I remember that the bottle of
stuff we used to thin the paste with was labelled "Pine Oil". What
that is or where you get it from, I have no idea.
We mixed it to a consistency that made it easy to apply with a
length of wire for soldering QFP packages with an iron. I wouldn't
try dispensing and/or reflowing reconstituted paste. A small
variation in viscosity has a large effect in those processes. I guess
it depends how desperate you are to save $10.
Steve.
======================================================
Steve Baldwin Electronic Product Design
TLA Microsystems Ltd Microcontroller Specialists
PO Box 15-680, New Lynn http://www.tla.co.nz
Auckland, New Zealand ph +64 9 820-2221
email: spam_OUTstevebTakeThisOuT
tla.co.nz fax +64 9 820-1929
======================================================
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2001\01\23@175701
by
Peter L. Peres
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