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Melissa
has now been "boxed up".
A roll of clay has been added around the
base of the box to insure that
no plaster will leak out and make a mess.
A thin layer of Mold Release has been
brushed/sprayed on !
DON'T FORGET THIS
STEP!!!
or your sculpture
will get stuck in the plaster.
As a
last resort you can use WD-40 as a release
It may cause discoloration to the plaster
but works fine for a test mold.
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Fill
a disposable container about 1/3 full
with cold water.
Add plaster gradually to the water.
Keep adding the plaster to the water
until it no longer sinks below the water
but mounds up on top. Tap it a bit to get the
water to absorb the last bit of plaster.
With a spoon GENTLY fold the plaster
together until it is somewhat smooth.
Do not stir it. It should be thick
like
a heavy whipped cream , similar to
Sour Cream that has been stirred.
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Gently
spoon small amounts of this thick
plaster mixture around the
sculpture.
When you get to the face, use a
soft brush to brush some of the
plaster over the face. This will
help
with air bubbles that may get
caught on the face.
Continue spooning plaster into
the box until it is almost full.
Tap the box several times to help
release the air bubbles trapped under the
surface.
Keep doing this and blowing on the surface.
You can also spray a light mist of
WD_40 or water on the surface to break the
air bubbles.
Once you are satisfied with the bubbles
being out, do NOT shake any more.
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Leave
the plaster to sit for a good amount of time.
Plaster will go through a chemical change.
It is really quite amazing!
It will get very hot as it sets up.
This is a critical time for the plaster.
If it is not fresh plaster, it may not heat up
enough to properly set up hard.
Be sure to let it cool completely.
This can take more than 1 hour or so.
When the plaster is ready, use an exacto
knife
to cut one corner of the taped edge.
Remove the boards.
Carefully pull on the clay bed to
separate it from the plaster mold.
If you have done well, the mold
should release easily from the sculpture
and the sculpture should remain
in the clay bed!
SUCCESS!
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