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An Exciting New
Direction For Making Brush-On Molds
. . . Dragon Skin
Silicone Rubber & Thi-VexII
Making a brush-on mold of any
model has always been a compromise.
Use latex rubber, and the time necessary to build an adequate mold
thickness by brushing on layer after layer of latex is several
days. Also, you are limited by what you can cast into the finished
mold.
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Barry Atkinson Studios
produced this ape using Dragon Skin as a base
casting which was then painted with Dragon Skin
pigmented with Silc Pig pigments.
The eyes are made of Crystal Clear 200 resin. |
Use a urethane rubber (such as
Brush-On
40), and model preparation becomes a critical factor in the
success of that mold. If the sealing agent and/or release agent is
not properly applied, the rubber will bond to the model. Also, a
release agent is required when casting most materials due to the
adhesive nature of the rubber.
Use a conventional silicone rubber (such as Mold Max
Silicone), and you need an accurate gram scale to weigh 3
components (Parts A + B + thickener). Also, the time between coats
is hours, resulting in a finished mold time factor of at least 3
days.
Enter The Dragon -
Customer applications for Dragon Skin
and Dragon SkinQ
soft silicone rubber continue to astound, with impressive Dragon
Skin creature creations appearing in movies, museums and other
venues.
Not
long ago, students at Harvard University, Rhode Island School Of
Design and others exchanged e-mails stating that Dragon Skin
Q was the most incredible brush-on rubber ever invented. They
put the word out via internet chat rooms and soon we had a number
of people calling us
asking for directions on how to use Dragon Skin
Q to make a brush-on mold. Here Are Some Tips:
1. Dragon Skin
and Dragon Skin
Q offer the advantage of having a mix ratio of 1A:1B by
volume (no scale required). Each can be thickened with a very
small amount of Thi-VexII
(added by volume) to make the rubber thixotropic for vertical
surface application. Proportion: Roughly 1
teaspoon of Thi-VexII
will thicken 1 lb. (0.45 kg.) total volume (A+B) of rubber.
Procedure: Combine equal amounts of Parts A & B and mix
thoroughly. Add Thi-VexII
and mix thoroughly. You will notice the material thickens almost
immediately and in proportion to the amount of Thi-VexII
added - the more added, the thicker it becomes.
Click Here To Go To Dragon Skin Technical
Bulletin
2. Model surface preparation is minimal -
Since these are silicones, no sealing agent or release agent
required for many surfaces. Dragon Skin
Q gels so quickly, it usually sets up before being inhibited by
many model surface contaminants that would inhibit conventional
platinum silicones.
We usually apply SuperSeal
to porous models or Ease Release
800 (release agent made especially for using with silicone rubber)
to non-porous surfaces as an added precaution before applying any
silicone rubber.
Click Here:
A Step-By-Step Of How It Is Done . . .
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