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I was thinking of purchasing a no-clean flux pen from my supplier, but there are two options, F-SW22 and F-SW33. What do these codes mean and what types of job is each suitable for?

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  • \$\begingroup\$ Could you link to both types? \$\endgroup\$ – Dean Mar 8 '13 at 11:22
  • \$\begingroup\$ rapidonline.com/Tools-Equipment/… \$\endgroup\$ – learnvst Mar 8 '13 at 11:39
  • \$\begingroup\$ You can click edit just below your question to add the extra information to it. \$\endgroup\$ – jippie Mar 8 '13 at 19:36
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F-SW-22 is weakly corrosive and contains inorganic salts.

F-SW-33 is non-corrosive and is rosin free w/o halides.

You'd use F-SW-22 if there was solder-ability issues, but you must clean the board after wards.

You'd use F-SW-33 for a normal (cleaner) situation, and is advertised as no-clean . I'd recommend you clean it anyways.

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