Two more questions I forgot to ask:
What are the best flask temperatures to cast ? It is my
understanding that silver is cast at 800 - 950 F depending on
size of models and that gold is a cast at a higher temperature
than silver ( increasing as karat goes up ). Is there nothing
more specific than this? I’m referring to centrifical casting.
What is the preferred metal to make molds of? When I mold a
silver casting the mold reacts with t he silver and discolors
both. Does this reaction harm the subsequent waxes pulled from
the mold thereby hurting the end result - the finished castings?
I’ve been told to rhodium plate the silver model before I mold it
but I don’t like the Idea of plating and
would not sell such so I would then keep the model. Is it common
practice among the brethren to keep all original models rather
than just the molds?
Thank you for any answers,