How To Clean No Clean Solder Flux

Step 1.

How to clean no clean solder flux. To do so you will need something other than flux to break down the oxides on the metal surface without which your surface may be damaged or not properly cleaned. Is It Necessary to Clean No-Clean Flux. Most no clean pastes require an organic saponifier for effective flux removal but some can be.

This solder paste exhibited SIR value above the IPC spec 100 MΩ without any dendrite formation even with a wet flux residue on the comb pattern. Could you advice if our process is right and could you recommend any better solutions andor. After soldering we using Vapor Degreaser process with RHO-TRON 225 AES-L to clean up the flux.

Prevent solvent and water used for flux cleaning to reach the conducting body. PEG 3350 or any PEG from 2000 to 5000. Take a liquid measuring cup and pour off 150ml of the Ethanol from the container.

Percentages are by weight. Since you wont be using the entire liquid in a single go pour some approximately 100 ml of solution in a spray bottle and use it. The mixture works on both resin and non-resin based flux as well as no-clean flux too.

Usually no-clean flux cleans up nicely with isopropyl alcohol or distilled water. To remove solder balls and improve overall cosmetic appearance. Most assemblers in the electronic industry use no-clean solder paste mainly to eliminate the requirement of cleaning the circuit board.

Heres my experimental formulation for a no-clean-style flux with PEG resin and amino acid activator. Avoid no-clean soldering flux as solvents it cant remove these. If you are using flux remover in aerosol form spray a little flux remover onto the flux then agitate with a hog hair cleaning brush.