Be extra careful when cleaning PCB. ESD prevention measures should be considered, and the power supply should be disconnected and carried out in a dry place. If incorrect methods or procedures are used for cleaning, the circuit board may not work at all.
1.Clean dust
For dust, the best dust removal method is to blow the circuit board clean with compressed air. Be careful of sensitive areas that may cause damage. Toothbrush is another tool that can be used to remove dirt and dust.
2.Cleaning flux
The circuit board with residual flux must be cleaned with saponifier. For amateurs and engineers, the most common thing is to put on wine. The toothbrush can be wetted with alcohol and can be used to scrub any flux. Please note that if your circuit board is soldered with no-clean flux, it will be difficult to remove, and you may need to use a stronger cleaner.
3.Clean corrosion
Slight corrosion caused by using baking soda to clean batteries or other items. It can be used to remove dirt without damaging the circuit board. Sodium bicarbonate has mild abrasiveness, which helps to remove corrosion or residue. Otherwise, using simple tools (such as using distilled water brush) will not produce corrosion or residue. It can also neutralize the acidity of the residue. PCB assembly and PCB design factory explained that clean PCB is very important for reliability. Printed circuit boards sometimes accumulate dust or other pollutants and need to be cleaned.
