How To Clean No Clean Solder Flux

Most no clean pastes require an organic saponifier for effective flux removal but some can be.

How to clean no clean solder flux. In order to effectively clean and remove no clean solder pastes and no clean flux residues a polar solvent or a solution of water and saponifier is necessary. Most assemblers in the electronic industry use no-clean solder paste mainly to eliminate the requirement of cleaning the circuit board assemblies. Take a liquid measuring cup and pour off 150ml of the Ethanol from the container.

You have made one litre of flux remover that quantity should suffice for quite some time. Work a new halogen-free no-clean SnAgCu solder paste 33-76-1 has been developed. 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. To remove any kind of flux you need to apply a lot of removers. The flux hardens and can be left on.

They come in aerosol cans like hair spray or shaving. You dont have to clean an RMA Flux. No soldering was done.

For Soldering on our production lines we using Kester Solder SN 63 Pb 37 with Flux 245 No clean in addition we using Kester Flux 959 977 2331-ZX. No-clean fluxes leave much less residue behind than the conventional R type flux and this smaller amount of residue will usually not interfere with the operation of the board or cause long-term corrosion-related failures. Modify the soldering irons temperature to a standard work temperature of around 300 degrees Celsius.

No drop-in cleaning solvents that were a direct substitute for ozone depleting cleaning solvents the soldering material companies introduced a disruptive innovation called No-Clean solder fluxes and pastes designed for through hole and surface mount soldering. After soldering we using Vapor Degreaser process with RHO-TRON 225 AES-L to clean up the flux. Percentages are by weight.