How about that for some sick crucibibles?
Three are out of service.
I also season mine with flux and get them shiny.
I like old ones over a dry new one.
I use Alumina/Zirconia units from Bell de St. Clair
I preheat mine in the burnout oven, then before casting I put the metal in them, then back into the burnout oven for a few minutes.
Metal melts fast and easy, even NP for our outsourcing labs whom we scan-print-cast-finish for. ($15.95 for that!)
The ladies took some pics while we were at it, but I don't think John would like them very much. Send a PM to get CC'd on the pics of some of our ladies! (Not you John.)
Scott