Electronics > Beginners
Flux
fixit7:
I am researching flux. I see there are lead free, acid based, and no clean up ones.
Which is best for circuit boards?
I know every situation will be different.
I returned some 12 gauge wire to an auto repair store because the copper strands were brittle and blackish gray.
Vtile:
As starting hobbyist I would say that go with Rosin activated types if you need extra flux.
I'm heretic and have even some random Stannol brand copper pipe flux which is considered as big no for electronics, but I use it only for bigger electromechanical soldering jobs ... read: heavy old connectors ie. corroted battery clips and those stained old wires.
99% of times my rosin core lead-tin alloy soldering wire is enough.
MarkF:
NEVER use acid based flux for anything electric.
Acid based flux is for plumbing.
perieanuo:
--- Quote from: MarkF on June 12, 2019, 12:21:26 am ---NEVER use acid based flux for anything electric.
Acid based flux is for plumbing.
--- End quote ---
This can be discussed.you can use ANY flux type then clean the pcb, what about this approach?
Acid does clean very good.I use rosin like everybody but for smd you have other options.
So for me the answer is the fluxes that cleans best and doesn't boil easy forming bubbles and moving your smd around.usually some american types those in tubes like rma 223 .rosin is for through hole components.
For pro smd work, you usually buy liquid ones but those are sold in 5-10 kg minimum quantities , I had one for testing for video chip changing in laptops rework.It was the best I used, liquid like water,I have to search for the code if necessary only.
So if you want to economise some money go rosin and eventually dilute this nd add some after shave for good smell, if you want some quality in rework go rma223 and his cousins.acid or basic, doesn't matter, you clean the board after.
Regards,pierre
Envoyé de mon iPad en utilisant Tapatalk
MarkF:
Nothing to discuss.
There are very aggressive rosin fluxes available if need be.
NEVER USE ACID FLUXES ON ELECTRONICS.
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