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Soldering Fluxes For Lead Free Chemistries

Qualitek has a wide variety of soldering fluxes available for lead and lead free processes. Click on the formulation number below to access specific information on that formulation.

Flux Packaging Options
Flux is availabe in 1 gallon, or 5 gallon jugs
and 55 gallon drums.
Lead Free
Chemistry
No-Clean Solder Flux

No-Clean Fluxes For Lead Free Soldering
Qualitek no-clean fluxes are formulated to meet the changing requirements for today's soldering operations. Designed for wave soldering conventional and SMT circuit board assemblies, these extremely low solids content fluxes leave practically no residue after soldering. Boards are dry and cosmetically clean as they exit the wave solder machine. There are no residues to interfere with electrical test probes and the expense of cleaning is eliminated. Qualitek NC fluxes are formulated to provide good activity while being halogen-free, non-corrosive and without surface insulation resistance degradation. No offensive odors are given off during soldering.
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Lead Free Chemistry
Water-Soluble Solder Flux
       

Water-Soluble Fluxes For Lead Free Soldering
Organic fluxes are commonly called "water soluble fluxes." Organic fluxes generally provide greater fluxing ability than rosin, but the ionizable nature of the water-soluble residue makes organic fluxes too conductive and potentially corrosive to leave on electronic assemblies. The organic fluxes are not as head stable as rosin fluxes but do provide more rapid fluxing action for high speed soldering. Because of the ability to remove organic flux residue with water and the ease of disposal of the cleaning solutions, organic fluxes are more frequently being used for electronics soldering applications. A circuit board assembly must be designed for the use of organic flux and water cleaning since all of the residue must be removed.
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