Water-Soluble Fluxes For Leaded & Lead Free Assemblies

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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