Fast 1-hour Burn-out:
After 20 to 30 minutes bench set
place the mold directly in a preheated oven at 1400 degrees
F. Hold at maximum temperature for about 20 minutes;
raise temperature to casting temperature and cast
The mold can also be placed directly
in a preheated oven at 900 degrees F. Raise temperature rapidly
to desired mold temperature. Hold for about 20 minutes and
cast.
Slow Burn-out:
After 20 to 30 minutes bench set
place the mold directly in a cold oven. Use 2-stage burnout.
First Raise temperature slowly at 7 to 10 degrees F per minute
to 600 degrees F and hold for about 30 minutes. Finally raise
the temperature rapidly to desired mold temperature. Hold
for about 20 minutes and cast
Pressable ceramics too:
Pressable Ceramics can also be cast
in STARVEST by SLOW or FAST burnout method. Just follow
the same directions. The liquid dilution may have to
be adjusted.
Use the ratio for High Noble alloys.
Use fast burnout starting at 1200 degrees F.; hold for 20
minutes and then transfer the mold to Press oven and follow
instructions for pressing the ceramics. You can also use the
slow burnout if you prefer it.
FOR BEST RESULTS
The Average of the temperatures of
the LIQUID and the POWDER should be 72 Degrees F.
If the POWDER temperature is TOO
HIGH then the LIQUID temperature should be LOWERED so that
the AVERAGE of the TWO is about 72 Degrees F.
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