How can I remove flux with the smallest rubbing?

[chth96]

I have tried to bridging tiny broken trace which is shown in the below link,and I found that it is impossible to remove any flux after soldering task.
Is it possible bridging tiny broken trace - Badcaps - Capacitor Search Engine
Because the 0.02 mm copper wire is very very fragile,So It broke itself very easily whenever I tried to rub excess flux with cotton bud.
Is there any way to remove flux with the smallest rubbing or without any rubbing?
Any reply would be appreciated.

[stj]

drip IPA onto it and leave it to disolve the flux for a while

[petehall347]

could use no clean flux

[chth96]

could use no clean flux

Is it possible to purchase any no clean flux in aliexpress?

[petehall347]

no idea i dont shop there

[diif]

I prefer to use a brush over cotton buds.I place a clean room wipe over the top after adding IPA and give it a gentle brush.

[jasko_jacker]

You can use nitro thinner (not acetone) without any problems. you can use a very soft toothbrush or a brush with natural bristles. Personally I use an airbrush for this type of cleaning even if I use a no clean flux (the best for this situation is an Ersa Cream flux but is very expansive). Do not use low quality fluxes that use natural resins as they are difficult to clean. However, consider that if you use very fine electrical wires you must first complete the job, clean the area without using brushes or similar just by putting the cleaning liquid and then blowing it away or drying it with absorbent paper, when everything is very clean then test the work and if everything is working, use a UV resin to protect the electrical wires. You can also use products that protect nearby components and are mechanically removable, depending on the work you need to do.