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very bad idea to use this flux for pcb. an active flux is conductive because has an acid.
look around flux remover and dry dry dry. I use similar flux but ONLY for soldering of steel pins of connectors, NOWHERE MORE. who give you this idiotic idea to use active flux for PCB?
the casing says (exempte d'acide pour) i translated it and it means free from acid
and it not conductive
am i safe? is the PCB ok?!
it also says for soldering and tinning
i'm freaking out !!!!
Don't panic
There are lots of different composition of fluxes. Some of them contain free acids like hydrochloric acid (very corrosive used in plumbing) Other milder ones are made from rosin with an activator added. These activators can be mild organic acids or halides or compounds that decompose to acids on heating e.g.ammonium chloride. The one you are using looks like a rosin based compound probably with an activator added so the label is probably strictly correct n that it doesnt contain a free acid. I have used something similar on boards where a slight conductivity doesnt matter. It is good practice to clean the boards afterwards anyway even the non conductive fluxes tend to leave the board a bit sticky. I use Isopropol alcohol, paint ,thinners, WD40. what ever does the job. You will sometimes find that you need to use an activated flux (a bad joint is a bigger problem than having to clean flux off the board.
Good luck
It is very important that you get it all off, because your circuit will not function properly. I spray a good amount of flux on my boards and scrub it off with a toothbrush. While the board is still wet with flux remover, rinse under tap water and use a seperate clean paint brush to flush off all remover. If board is abit sticky or flux still showing, clean again and dry the board thoroughly. I hope this helps.
I'm not at all into using such flux, but some people here swear to it. Chemelec preferes a solder with such flux because he wants his boards squeaky clean and he washes them in water when he is done.
If you don't trust tap water with your pcb, you can use distilled water instead - it is a better solvent anyway.
i used alcohol and tooth brush to remove it and it worked!
here is the picture Before and After cleaning
i think i will get some distilled water Just to make sure it's clean
thanks guys
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