Mixture of salts and minerals in powder form. It is provided in bags of 30 Kg.
Lead Bronze Flux, with more than 10% lead in its composition. It limits the formation of oxides and slag around the walls of the crucible. It decreases the absorption of gases, the segregation of Lead and increases the fluidity of the metal. Approx. 1% of the weight of the metal, adding 0.5% as soon as the metal becomes pasty and the other 0.5% when liquefying completely.