Is it possible to make a mold using plaster, after sculpting in a fiberglass mannequin head?

Carla Suêrda

Hello, my name is Carla. I'm a begginer in sfx.
I don't have a facecast yet, all I have is a fiberglass mannequin head.
I have a project of doing a zombie gelatine prosthetic.
I intend:
1. to sculpt it on the mannequin face using clay and protecting with vaseline,
2. to build some walls with plasteline,
3. to make the molds using plaster,
and then make the gelatine prosthetics.
But I'm not sure if it works in a fiberglass mannequin.

Could someone help me?

Chris Ellerby

Hi Carla,

You can do this as long as the mold will be able to pull away from your sculpture without locking.  Because the core (fiberglass head) is rigid, there is a possibility of the mold locking around the core if the mold wraps too far around the sides.

This is pretty much the same thing as sculpting on a stone core, and some folks do work on resin or fiberglass cores.   You should be fine!

/Chris

Carla Suêrda

I'll try to protect the mold as much as possible using vaseline.
If it does not work I'll let you know!
Thank you very much, Chris!