Fiberglass Molding
in Fabrication
Hello Guys! So, I'm very interested in learning to make animatronic creatures, and I know that the under-skull in most animatronic creations is made from fiberglass. Right now I'm already familiar with the process of making negative molds out of plaster of Paris, and I also know how to use polyester resin. However, I've never actually used fiberglass to cast an object from a mold.
I guess what I'm actually asking is what kind of release agent should I use in casting fiberglass with a plaster mold?
I guess what I'm actually asking is what kind of release agent should I use in casting fiberglass with a plaster mold?
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Best Answers
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Chris Ellerby
Admin
Hi Joseph,
PVA and waxes are common releases when working with fiberglass. There are a lot of great fiberglass molding tutorials on YouTube that should get you stated.
Best of luck!
/Chris5 -
Chris Ellerby
Admin
Absolutely. When casting a semi-rigid piece like fiberglass a flexible silicone mold is great.
/Chris5
Answers
Also, could I make a fiberglass cast in a silicone mold?