Is there a substitute for "Flux-0ff' spray? - diyAudio
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Old 13th January 2009, 01:57 PM   #1
reiver is offline reiver  United States
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Default Is there a substitute for "Flux-0ff' spray?

I have a couple of amplifier audio boards that have some flux gunked up on them (too much soldering).

But noone in my area sells Flux-off anymore, including Radio Shack. Can I substitute another solvent like Brake-cleaner without destroying anything? I know most electrical parts are rated to take a variety of solvents.

Ideas?
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Old 13th January 2009, 02:15 PM   #2
Elvee is offline Elvee  Belgium
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Isopropanol works well, leaves no whitish residues, and is safe, even with sensitive parts such as PS capacitors.
You can find it in a spray form as a whiteboard cleaner.
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Old 13th January 2009, 02:24 PM   #3
djQUAN is offline djQUAN  Philippines
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I've been using lacquer thinner with good results for years.
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Old 13th January 2009, 02:40 PM   #4
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Isopropyl (rubbing alcohol) is fine, and won't destroy plastics, especially polystyrene caps, like stronger solvents.
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Old 13th January 2009, 03:35 PM   #5
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Is there a substitute for "Flux-0ff' spray?

Yes, it is what a skunk uses! Nobody knows better how to say "Flux-0ff" than a skunk!

But seriously, I use a spritzer bottle with a plastic straw from a WD-40 can or similar hot glued to the nozzle and filled with 99% isopropyl alcohol from the drugstore and a nylon brush like a toothbrush. Saves a ton-o-money over the spray can products.
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Old 13th January 2009, 05:38 PM   #6
reiver is offline reiver  United States
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Thanks everyone, I'm glad I didn't waste money on mailordering some flux-off.

I have a bottle of 99% iso on my shelf, I know what I'm doing tonight....

-Bryan
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