Hi Lee, You would be more than welcome should you come to these parts
of the world I actually think of casting more as a science In
the sense that almost anything can be cast… It’s just a matter of
figuring out the best parameters for a particular job… We have
cast items all the way down to a flask temp of 500oF . When you have
to cast thick and thin parts by the oven load, it becomes critical
to set up a reference chart ,or a book with pictures/model numbers
and record the best oven and metal temperature for most items …
this makes it far less tricky when we receive new pieces to
cast…99 % of the time we can nail the temperatures of a particular
new item first time out.
The temperatures you are using sound correct to me in relationship
to the thickness of your designs.I wouldn’t change anything if it’s
working! Best wishes Daniel Grandi
We do casting/finishing for designers and people in the trade.