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Creating a Makeup Prosthetic Mold Using Shell Shock & Plasti Paste
Shell Shock® brushable plastic and Plasti-Paste® trowelable plastic can be used in combination to create a rigid, strong, inexpensive mold. A mold created from these materials is lightweight, very strong and can be used for casting platinum silicones directly.

This sequence outlines the construction of a mold to cast silicone f/x makeup appliances.  The mold is based on a lifecasting of a model created with Body Double® lifecasting silicone rubber.

To view the casting, painting and application of a silicone prosthetic cast into this mold, CLICK HERE to view our how-to video.


 A Body Double® mold taken from an our model will be used, along with Shell Shock brushable plastic.

1 - A Body Double® mold taken from an our model will be used, along with Shell Shock brushable plastic.
 The Shell Shock®  Part A is measured out. (mix ratio is 1A:5B by weight).

2 - The Shell Shock® Part A is measured out. (mix ratio is 1A:5B by weight).
 The Shell Shock®  Part B is measured out. (mix ratio is 1A:5B by weight).

3 - The Shell Shock® Part B is measured out. (mix ratio is 1A:5B by weight).
 The Shell Shock®  is thoroughly mixed.

4 - The Shell Shock® is thoroughly mixed.
 A thin layer of Shell Shock®  is stippled into the Body Double® silicone mold.

5 - A thin layer of Shell Shock® is stippled into the Body Double® silicone mold.
 Another layer of Shell Shock®  is applied.

6 - Another layer of Shell Shock® is applied.
 Plasti-Paste® II trowelable resin  is measured out (mix ratio is 41A:100B by weight)

7 - Plasti-Paste® II trowelable resin is measured out (mix ratio is 41A:100B by weight)
 The Plasti-Paste® II is thoroughly mixed.

8 - The Plasti-Paste® II is thoroughly mixed.
 The Plasti-Paste® II is applied to the Shell Shock® to add strength.

9 - The Plasti-Paste® II is applied to the Shell Shock® to add strength.
 Additional layers of Plasti-Paste® II is added until a 3/8'' thickness is achieved.

10 - Additional layers of Plasti-Paste® II is added until a 3/8'' thickness is achieved.
 The material is left to cure for 90 minutes.

11 - The material is left to cure for 90 minutes.
 The casting is demolded.

12 - The casting is demolded.
 The edges of the casting are sanded smooth.

13 - The edges of the casting are sanded smooth.
 The finished casting reflects perfect detail of our model.

14 - The finished casting reflects perfect detail of our model.
 A zombie style appliances is sculpted on the casting using sulfur-free clay.

15 - A zombie style appliances is sculpted on the casting using sulfur-free clay.
 A 'cutting edge' is sculpted around the appliance.  This will provide thin edges when casting silicone into the mold.

16 - A 'cutting edge' is sculpted around the appliance. This will provide thin edges when casting silicone into the mold.
 A registration indentation is drilled into the casting.

17 - A registration indentation is drilled into the casting.
 Universal Mold Release® is applied over the entire surface.

18 - Universal Mold Release® is applied over the entire surface.
 A thin layer of Shell Shock® is brushed on the sculpture and casting.

19 - A thin layer of Shell Shock® is brushed on the sculpture and casting.
 Another layer of Shell Shock® is applied.

20 - Another layer of Shell Shock® is applied.
 Plasti-Paste® II is applied to a 3/8'' thickness.

21 - Plasti-Paste® II is applied to a 3/8'' thickness.
 The mold is allowed to cure overnight for ultimate strength.

22 - The mold is allowed to cure overnight for ultimate strength.
 The mold is removed form the baseboard.

23 - The mold is removed form the baseboard.
 A small batch of Plasti-Paste® II is used to create a base for the mold.

24 - A small batch of Plasti-Paste® II is used to create a base for the mold.
 Any exposed clay is removed.

25 - Any exposed clay is removed.
 The mold halves are slowly pried apart using screwdrivers.

26 - The mold halves are slowly pried apart using screwdrivers.
 The mold halves are separated.

27 - The mold halves are separated.
 Clay residue is removed using wooden tools.

28 - Clay residue is removed using wooden tools.
 A vent hole is drilled in the positive (life casting) to help reduce air bubbles in cast silicone pieces.

29 - A vent hole is drilled in the positive (life casting) to help reduce air bubbles in cast silicone pieces.
 The mold is ready for use.  To view the casting, painting and application of a silicone prosthetic cast into this mold, <a href='http://www.youtube.com/watch?v=WxMYdVnft7c'> CLICK HERE </a>to view our how-to video.

30 - The mold is ready for use. To view the casting, painting and application of a silicone prosthetic cast into this mold, CLICK HERE to view our how-to video.

                   
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