[sdiy] Flux residue removal

[KA4HJH]

What's the consensus on removing rosin flux residue these days? What chemical(s) to use, how much elbow grease? I have acetone and denatured alcohol (ethanol) on hand. I can't find any 99% IPA locally, only 91%.

Back in the mid-Eighties I worked on cable TV amplifiers and we used spray cans of some sort of CFC to remove flux residue. The stuff blasted it off the board in half a second. We went through cases of it. So much for the ozone layer—we did our part in damaging it.


Terry Bowman, KA4HJH
"The Mac Doctor"

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   What's the consensus on removing rosin flux residue these days? What
   chemical(s) to use, how much elbow grease? I have acetone and denatured
   alcohol (ethanol) on hand. I can't find any 99% IPA locally, only 91%.

   Back in the mid-Eighties I worked on cable TV amplifiers and we used
   spray cans of some sort of CFC to remove flux residue. The stuff
   blasted it off the board in half a second. We went through cases of it.
   So much for the ozone layer--we did our part in damaging it.
   Terry Bowman, KA4HJH
   "The Mac Doctor"