Rivarossi Disaster!

jeffrey-wimberl

Active Member
Do you think vibration was the culprit?
I suspect zinc-oxide, maybe introduced during the molding process. When molten zinc comes in contact with
oxygen you get zinc-oxide. In the old top filled molds the zinc was poured into the molds. Today most zinc castings are made in bottom filled molds where the zinc is pumped up into the bottom of the molds thereby preventing zinc-oxide from entering the molds.
 
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