December 07, 2002
Time to make the mold.
I made a small box with scrap Foamcore pieces and
covered the inside with Masking Tape. The Silicone
will not stick to the Tape but would stick to Foamcore.
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Because of the
intricate angles, I must make it in 2 parts. To do this
you must first surround the bottom half of the Sculpture
with Plastiscine. Make sure there are not gaps for the Silicone
to slip below.
Also, you must make holes in the Plastiscine to create
anchors so that the 2 mold pieces interlock perfectly and
don't slip when making your Positive Resin Copies.
Now before mixing the Silicone, I sprayed a Liquid Wax
Release Agent so that the Mold will not bond to the Sculpture. |
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December 07, 2002
The product I use as many of you know is POR-A-MOLD
from SYNAIR.
I've been using it for almost 10 years now and works
perfectly eveytime and last forever.
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It comes in
2 parts... Silicone and hardening Agent. You measure equal
parts of both parts in a clean measuring cup.
Just make sure you don't use them to make a cake later
on :D |
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December 07, 2002
It's quite easy, you pour the equal parts into a
big clean Mixing Bowl. |
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December 07, 2002
Using a metal wisk, blend the chemicals together
for about 5 minutes.
When it turns into one color and you cannot see streaks
of Hadening agent, you are ready to pour into the
mold. |
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December 07, 2002
SLOWLY pour the Silicone into your mold.
Do NOT plop it all at once or you will create Air
Pockets that will create a huge disaster.
Let the Silicone slide into all the tiny spaces
of the Sculpture and when it is fully covered, go
to a corner and then fill to the top. Let harden for
12 hours. |
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December 09, 2002
When the Silicone has hardened you can turn the box
upside down and tear open the bottom of the box.
BE CAREFULL NOT to RIP THE BOX. You need it to hold
the Silicone of the second half.
Once the base has been peeled back, you can see
the exposed Rear of the statue B.
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You can also
see how the plasticine was rapped around it to make a barrier.
You must now remove the Plasticine but be CAREFULL the last
thing you want to do is damage your statue before the mold
is made. :D |
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December 09, 2002
Once all the plastiscine has been carefully removed,
you should now see this... the Rear of the Statue
completely exposed and the bottom half of the Silicone
mold.
I now can use my Wax Spray release agent and cover
the rear of the Statue B as well as the 4 walls of
the box. |
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December 09, 2002
There's no turning back now :D
I mixed another batch of Silicone and poured it slowly
over the Rear Statue B to avoid bubbles.
Now we wait another 12 hours as the Silicone cures. |
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December 09, 2002
After hardening for 12 hours, I removed the Foamcore
box.
Sometimes it sticks to the Silicone so you have to
rip and pull hard to get it completely clean.
The perfect way to get rid of all that negative energy
:D |
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December 22, 2002
Now when you open the mold you might be in for a
shock. Your Super Sculpy is all Yucky.
The heat from the Silicone curing dries up the Sculpey
and makes it very brittle and almost imposible to
have it remain in it's original state.
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That's why you
want to make sure you do your mold correctly the first time.
One bad mixture could cause you to have to resculpt all
over again. Not Good. |
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December 22, 2002
Well after pulling and scraping the Super Sculpy
out of the mold, this is what we are left with. NOT
a pretty site :)
I hope your mold came out good, because it would
be hard to make another using these pieces. :P |
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December 22, 2002
Here is the finished mold. Both sides have been cleaned
and are ready for resin.
First step is to spray your release agent. The one
I use is from Synair. The same company that makes
the mold and resin. It's called Synlube and is a liquid
wax that dries in 5-10 minutes and creates a thin
wax layer so that the resin will not stick to the
Silicone mold and ruin it. |
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December 22, 2002
Once the Sunlube dried, I placed both pieces together
and used my clamps to keep them tight. You don't want
the resin to ooze out the sides.
I used equal parts of Polymer and hardener (Synair's
Por-A-Kast resin kit), mixed them together and poured
the liquid resin into the mold.
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20 seconds later,
as you can see in the photo, it is already hard and ready
to be removed from the mold. |
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December 22, 2002
Slowly pull the halves apart and you will get a perfect
copy of what you had originaly sculpted. |
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December 22, 2002
Now ease the resin out from the second half of the
mold and Ta-dah...Instant copy :D |
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