Oh the fun of ‘scaling up’ an operation!!! You might need to build
another de-waxer. Steam de-waxed molds should be burned out before
If you can afford the test (use brass instead of gold/silver) I
would run multiple de-waxes and begin your burnout as usual. Your new
oven should be designed to handle the extra load with some changes to
the burnout cycle. Extend the low end of the cycle by 1-2 hours to
slowly heat the molds.
Don’t forget that an invested mold significantly lags (by up to 1-2
hours) the indicated temperature of the oven unless the control
thermocouple is buried in an invested mold.
You can stagger stack the molds so the tree openings are exposed.
Paul Finelt, CIRM
PF Associates, LL.C.