It is important, when using a torch for melting (for inst. Meteor type «O») that the recommended propane (approx. 0.5 bar or 7.25 psi) / oxygen (approx. 1.0 bar or 14.5 psi) mixture and pressure is observed. Before melting add a pinch of flux to the alloy. Once the alloy has completely melted, continue heating for a further approx. 5sec. before releasing the casting machine arm. When melting by resistance heating, the power must be main- tained for an additional 20–40sec. before casting. Always ensure that both furnace and crucible have reached this temperature before adding the alloy.
Flux: Borax