Originally Posted by
kevin c
I guess my processing of source lead different from WW led me to a different fluxing process that wouldn't work for WW.
Lead wheel weights are rare in my area; I've only processed a single batch, and that had every individual weight dike tested. I've done more range scrap, and most recently isotope containers. These last two sources of lead aren't likely to have any zinc, especially the iso lead, so I use higher heat to melt and during fluxing.
My fluxing is done with sawdust and generous amounts of paraffin, which invariably ignites. The top of the melt is one big cauldron of fire, that I assume is well above the zinc melting point. Good for cleaning the jackets of residual lead, bad for WW processing if I miss a few zinkers.