How To Clean Flux After Soldering

Cleaning up after Soldering.

How to clean flux after soldering. Brush the solder joint and solder flux on the soldered PCB. To clean flux after soldering you can wash each panel as you finish it in warm soapy water. The preference is 150º de-ionized water however if youre doing hobby work at home regular hot water will be fine.

Step 2- Using a brush apply flux with solder to both pieces of the terminal that need to be connected. Wipe away the baking soda and the dissolved flux from the soldered joint with a damp cloth the let it air dry thoroughly. Then a banister brush is used to brush off contaminants at solder connection in ethanol solution.

Other surface oxides are easier to remove and for. Acetone solution is used to soak PCB boards for about 10 minutes. The before is to be sure the pads are clean of any oils or films.

Trying to remove water-soluble flux with tap water may replace flux contaminants with ionic contaminants in the tap water. The after is to remove the flux which is mildly acidic and over time will attack the solder joint. After soldering clean your piece with patina and flux remover.

While this may be adequate for no-clean flux where the goal is a visually clean PCB this may not be clean enough when more heavily activated fluxes are involved like RA or aqueous. Click to expand. Grab a small capful of isopropyl alcohol and some q-tips.

If I just soldered the board I literally just have to dunk it in an ethanol bath gently swish the PCB around to agitate things a bit and tip it as I take it out. Keep board clean and tidy to make sure no impurities and finger marks. After soldering we using Vapor Degreaser process with RHO-TRON 225 AES-L to clean up the flux.