Galvanizing pre-fluxes, or dry kettle galvanizing fluxes, are used to dissolve any oxide films and impurities which are formed on the steel surface after pickling, but before galvanizing. Fluxes also ensure that a wettable and clean metal surface will come in contact with the molten zinc metal.  FLUX TYPEACNCOMMON USEMono Salt 0.39Galvanizing sheet drying oven requiredDouble Salt0.79Galvanizing pipe, drying oven requiredTriple Salt1.17Basic galvanizing flux used in North AmericaQuadraflux1.6General purpose flux