Mix soldering fluxes.
What does a Flux Mixer do?
Mixes soldering flux, and supplies soldering or welding machines with flux and solder: Mixes flux in crock or vat according to formula, using paddle. Tests consistency of flux with hydrometer. Carries or trucks flux or solder to machines. Cleans reservoirs of spent or stale flux, using solvent. Keeps records of solder and flux consumed and salvaged.