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Old 19th July 2014, 01:34 AM   #11
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Quote:
Originally Posted by Pemo View Post
No no no, no flux. (Well, only for de-soldering tasks)
And clean the damn thing inmediatly.
Why would you give such bad advice? Flux is an essential part of soldering properly. Whether you can get by with the flux in the solder or you use extra, it has to be there. I can't think of any reason to not use electronics grade flux when soldering.
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Old 19th July 2014, 03:19 AM   #12
ArtG is offline ArtG  United States
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Anyone who tries soldering electronic components with solid wire solder will soon give-up! It’s nearly impossible. Fortunately the major manufactures of rosin core solder, such as Kester, Multicore, and others include the correct amount of flux for everyday hand soldering. Sometimes additional flux is very helpful when soldering to certain alloys, or when some mild corrosion is present, as is often the case with old copper wire.

Kester makes a very handy pen loaded with 10ml. of flux, that’s applied through a felt tip. They sell for about $5, or slightly less from Amazon. The only drawback to this handy applicator is that after a year or two, the tip will clog with dried flux. I’ve found that simply soaking the tip in lacquer thinner for a minute or so resolves the problem, and it’s good for another year or two.
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Old 20th July 2014, 04:41 PM   #13
SonyFan is offline SonyFan  United States
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Flux is essential for flowing certain joints, and surely helps with all of them. I have always done what I was taught by my good friend and true old-school tech and dip my iron tip in pure rosin flux before every joint. I have never gotten a big flux mess on a joint with this method and it makes the solder flow much more readily.
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Old 20th July 2014, 05:03 PM   #14
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For surface mount work I use Kester 951 in a Bonpen-102 flux applicator. Makes beautiful joints.
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Old 21st July 2014, 05:40 AM   #15
RJF is offline RJF  Australia
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Quote:
Originally Posted by stratus46 View Post
Not 'could', WILL destroy the board.
G
OK I left "could" in, since the exact flux was undefined, and knowing my luck there would be some obscure type of plumbers flux that was perfectly benign to printed circuit boards that someone would bring up as an example to prove that I was incorrect......
;-)
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