[Test-Equipment] cleaning flux off

[antqradio@juno.com]

Greetings Kees
Depends on what style of plastic components are mounted on the circuit
board.  When I was working on the Marconi spectrum analyzer, z-wiring all
of those vias, I used acetone to clean the reworked circuit boards.  I
followed this by scrubbing in soap and water and then a rinse in alcohol.
 This worked very well until I noticed the polystyrene capacitors used
for pulse shaping were melting!  So the moral of this story is to check
for plastics that are soluble in the cleaner of choice.

The brushes I used to apply and scrub are acid brushes with bristles cut
to about 1/4 inch and a 1 inch paint brush also cut down to about 3/8
inch.  This stiffens the bristles and makes the job go faster.
Regards from Arkansas,
Jim

On Thu, 11 Mar 2004 11:10:15 -0600 windy10605@juno.com writes:
> What do you use in a hobby environment to clean flux off boards
> (inexpensively) ? I've used detergent and a toothbrush, isopropyl 
> alcohol
> (70%) and a toothbrush and finish the drying with compressed air. 
> And, of
> course, I've also left the flux which I've generally regretted 
> later. 
> 
> 73 Kees K5BCQ 
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