In spite of using Modeler's Silicone mold release on my molds, the
waxes are coming out half stuck to the sides. Does anyone have a
suggestion to fix my problem?
Hi Karen, From your statement that your waxes are stuck to your mold,
and silicone release spray is not releasing the wax, I can determine
that you are injecting into a natural rubber mold material like
castaldo gold or Kerr rubber( and others). The mold you are using is
yellowish in color or white. What causes the wax to really stick to
these types of rubber is when your wax is way to hot…You may have a
faulty thermometer if you are using one… if you are not using one,
then you should get a stainless steel dial type thermometer that
will fit into the thermowell (hole) on top of the wax pot lid. This
will give you a closer reading of the actual temperature of the wax.
If the waxpot is less than 1/2 full, you may not be getting a proper
reading if you already have a thermometer.
If you are relying on the temperature reading of the knob on the
side of the waxpot… good luck !!! These are known to be completely
off and should not be used to gauge your wax temp unless it is
calibratable (very few are) and has been calibrated.
I would suggest you bring your wax temp down to about 150- 155 oF
and wait a good 1/2 hour before shooting waxes… your problem
should go away.
If you should need castings or any other help, Please contact us off
list at email@example.com We do casting, finishing,
moldmaking, model making , soldering, assembly, and a variety of
other things for designers, stores and people in the trade. Best
wishes, Daniel Grandi