Zinc Flux

ZN291 is Synex's best zinc drossing/cover flux. Designed to clean molten zinc, its special chemical formulation removes unwanted oxides and nonmetallic.  ZN291 not only melts at a lower temperature than zinc, but also goes through an exothermic reaction of its own. This exothermic reaction drives suspended zinc droplets out of the dross, helping to provide a dry, powdery dross while controlling metal loss.