How To Clean No Clean Solder Flux

Percentages are by weight.

How to clean no clean solder flux. Could you advice if our process is right and could you recommend any better solutions andor. 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. Although the removal of no-clean flux is common our most common application you will need to use a chemical additive in the wash water.

Step 1. No clean fluxes allegedly dont need to be cleaned and can be left on the board however many of us have had problems with no-clean processes having relatively conductive residue. Most no clean pastes require an organic saponifier for effective flux removal but some can be.

Heres my experimental formulation for a no-clean-style flux with PEG resin and amino acid activator. If you are considering an inline system this will raise the equipment price substantially as a chemical-compatible inline cleaner costs considerably more than a water-only system. 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.

Always wear gloves before you handle the ethyl and isopropyl solutions and start mixing them. Work a new halogen-free no-clean SnAgCu solder paste 33-76-1 has been developed. Using a specially designed cleaner or brass to clean the soldering irons tip.

But for wires this was and still is the flux to use. Prevent solvent and water used for flux cleaning to reach the conducting body. You have made one litre of flux remover that quantity should suffice for quite some time.

Aqueous clean fluxes have been developed that can be cleaned without solvents- using just hot water and detergent. After applying the remover leave it for few seconds and then brush it away. Check with the manufacturer for recommended solvents.