Best Methods for Cleaning Printed Circuits: Salicin Spirit, Diluted Alcohol & More

Question

As in the subject, what measures can be used for this, what are the best? Is it possible, for example, to use salicin spirit or drink alcohol (of course slightly diluted ;) )?

SQ9PXB · Answer

various types of powders are good for degreasing, only small ones so as not to scratch too much copper, water-based paper 1000 is also good, spirit as much as possible especially for cleaning the marker pen after etching

Jethro · Answer

I agree with my colleague Achilles, alcohol is good for this, but it will not reach, for example, an integrated circuit, e.g. under the so-called BGA. In such cases, an ultrasonic bath and a liquid, e.g. a cleanser or propanol, i.e. also alcohol, are used. If you want to wash off the felt-tip pen after etching, various cifs or solvents wash it off well.

kamahonda · Answer

This is the plate not yet armed?

wołodzia · Answer

in my opinion, spirit is the best cleaning agent or extraction gasoline, he personally uses the first variant

Błażej · Answer

If it is a freshly etched plate and ready for assembly, I recommend steel wool, such as for cleaning copper pipes before brazing.
if it's a PCB after soldering and you want to get rid of rosin residues, it depends on how complicated the PCB is. Through-hole assembly with almost no limitations. I even used nitro. you just have to be careful not to splash the side of the elements. Surface printing: propanol, spirit, special chemicals.
Nitro will remove all rosin, while the spirit, which works a bit slower, will dissolve it and smear it on the plate, which will give a kind of protective coating.

elektronik321 · Answer

if the tile has a secondary perceptible oxides, you can use a sponge used to clean copper pipes, the sponge works on the principle of fine sandpaper

kamahonda · Answer

I wipe the freshly etched plate with very fine water sandpaper (the kind used for sanding cars before painting), wet of course, then dry and cover with a thin layer of dissolved rosin in a nitro solvent. Soldering after such a procedure is great.

MaxFall1 · Answer

I clean with acetone (washing varnish) or toluene (for dirt and grease)

achilles · Answer

Thanks for explaining the topic to me. I did not add at the beginning that I mean mainly removing grease from the surface of the plate, which is already covered with a layer of rosin. I meant a measure that will not remove it. I wasn't sure about the spirit.

Thanks and regards

Best Methods for Cleaning Printed Circuits: Salicin Spirit, Diluted Alcohol & More

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