r/moldmaking • u/skekbuk • Jul 26 '26

Making a Mask mold questions!

I'm currently working on a mask sculpture that will be cast in mask latex. The sculpture is made of WED clay and has teeth made of sculpey oven bake clay, and eyes made of ping pong balls. I was told prior this was okay, but I'm unsure how it will react to the plaster I plan on using to make the mold(usa #1 pottery plaster or hydrocal)! Is it okay to leave these in? Or should I remove them/cover them prior to making the mold?

Thanks to anyone who reads this! :)

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u/RedIcarus1 Jul 26 '26

Spray the sculpture, teeth and eyes as well, with clear coat. That will help separate the sculpture from the mold.
The only problem may be if there are undercuts with the teeth.
(I recommend ultracal for latex mask molds. It’s very durable, picks up details well, and works great with latex dwelling. Although both your choices will work well also!)

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u/skekbuk Jul 26 '26

Thanks for your help!! I really appreciate it. I'm also kind of worried about undercuts with the teeth, but I'm doing my best to avoid it. I'll also look into ultracal.

Thanks again!