Flux removal question

[Rob]

My personal favorite: multicore no-clean x32-10i flux.. Comes off with water
and when it dries leaves a small amount of dust-like matter...

You have to work quickly though cuz it is alchohol based and it evaporates
quickly.

And while youre at it, get some no-clean flux solder to match, or just use
straight solder and flux your boards more to make up for it.

I personally dont like flux core solder too much because the flux inside
changes properties and has a shelf life.

Stay FAR away from ANY form of trichlorethane.. I have just read some
terrible stuff on it lately..

I guess some ppl are able to work around the stuff their whole life and
never have a health problem and others just smell it once or get it on their
hands and they are screwed up for life, mainly liver and kidney problems..
Same with isopropyl alchohol..Or ANY solvents for that matter. ;) Its not
worth risking your health.

Oh how a wish for the days of Freon cleaners..  ;)

Rob

----- Original Message -----
From: patchell <patchell at silcom.com>
To: Paul Wilkinson <synthdiy at mail.com>
Cc: Synth DIY <synth-diy at node12b53.a2000.nl>
Sent: Sunday, June 18, 2000 9:52 AM
Subject: Re: Flux removal question


>
>
> Paul Wilkinson wrote:
>
> > Here's another flux removal question - How do you do it?  Do you just
spray
> > it on and let it dry, or do you have to get in there with a Q-Tip?  And
do
> > you need to do it soon after soldering?
> >
> > My flux remover came with a billion warnings all over the can AND
another
> > sheet of warnings attached with a rubber band - but no instructions!
> >
>
>     I have never used the stuff in the spray can.  When I used to use
rosin
> flux, I had me a big can of Tricloroethane (do not use tricloroethelyne).
I
> would pour the stuff into a glass tray, put the board in, and scrub the
board
> with an acid brush.  Dump dirty solvent, replace with clean, and then
repeat.  I
> would then use compressed air to blow the solvent off of the board.  This
was a
> pretty messy proceedure, and one you would probably get arrested for now.
I
> would wear big heavy rubber chemical gloves, a resperator, etc...besides
doing
> this outside.  If I was using the spray, I suppose you could spray it on,
use an
> acid brush to scrub the stuff off, and then spray again to clean off the
crud.
> I used to use a Q-Tip dipped in triclor to clean up the area where I
replaced
> components.
>
>     The above is the reason I switched to Organic Flux about 15 years ago.
>
>     -Jim
>
> >
> > - Paul
> >
> > ------Original Message------
> > From: Harry Bissell <harrybissell at prodigy.net>
> > To: Blandon Ray <arp2813 at home.com>
> > Sent: June 18, 2000 3:54:03 AM GMT
> > Subject: Re: Flux removal question
> >
> > You seem to be right on target. I would avoid flux cleaner on
> > 1) Polystyrene caps
> > 2) Pots and Switches (it will remove lubricants etc...)
> > 3) Jacks  (could leave a residue...)
> >
> > I washed my PCB before installing these components.
> >
> > Flux leakage can be a problem around high impedance areas like the VCOs,
> > S/H etc.  I usually try to scratch the flux away with an x-acto knife
(gets
> > brittle
> > after about a day, flakes off easy) then clean with a swab.
> >
> > Your caps might be OK and they might be toast. Can't tell if they are
> > damaged
> > until you fire it up. I'd try first...they might be fine.
> >
> > H^) harry
> >
> > Blandon Ray wrote:
> >
> > > Actually a few questions, especially for those of you building the
Mini
> > Modular:
> > >
> > > After last night's round of soldering I sprayed the back of the board
with
> > some
> > > flux remover. When it dried, some of the clear plastic polystyrene
> > capacitors had
> > > turned white on the outside. My questions are: first, is this likely
to
> > damage the
> > > caps themselves? Second, what else shouldn't I spray with flux
remover?
> > Finally,
> > > how important is it (generally speaking) to remove flux from analogue
> > circuits?
> > > I'm told it can cause problems related to current leaking around the
> > board, but
> > > that's about all I know.
> > >
> > > Thanks in advance,
> > > blandon
> >
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> --
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> Visit:http://www.silcom.com/~patchell/
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