So I'm fascinated by peoples' ability to recreate things they've seen, whether through the use of making resin and latex molds, vacuum molding, or even good old-fashioned sculpting itself.
To that end, I decided to run a series of experiments to see if I could recreate a few different 1:18 scale figure heads.
For my first experiment, I started with the hypothesis that I could use Sculpy® to both make a mold and to fill the mold. Concerns going in was that the Sculpy mold wouldn't retain an accurate copy of the figure's likeness, or that the mold itself would be ruined in the process.
I started with a Captain America: The Winter Soldier Red Skull head.
Then, I made the mold in two halves, for easier removal.
Then, I cured it in the toaster oven. (Bake at 275 °F (130 °C) for 15 minutes per 1/4 in (6 mm) thickness.)
After that, I filled the cooled mold with fresh Sculpy and repeated the curing process, albeit with vegetable oil slathered into the interior of the mold for easier removal.
After that, I removed the mold and scraped away the excess Sculpy.
RESULTS: The mold was indeed ruined in the process, as it stuck together regardless of the vegetable oil (though it DID produce the most
remarkable, shall we say, aroma in my kitchen, which I am not sure I'm going to quickly be able to get out of there. Kinda like slow-baked tennis shoes.)
The likeness, while INCREDIBLY detailed, was scrunched beyond usefulness, as the initial mold became warped when removing it from the figure head.
SO: Hypothesis correct, concerns also correct. If I had a stronger substance than Sculpy to make my mold with, one that wouldn't stick to the final building material or become warped, it would have worked PERFECTLY.
I have now discovered one way to not correctly make an action figure headsculpt.
Alas, poor Yorick. I knew him well, Doctor Zola.
Next up, I will repeat my process, with a figure with broader facial features.