What is that stuff that they used to make the mask in the movie Mrs. Doubtfire?

and where could I get my hands on it?What is that stuff that they used to make the mask in the movie Mrs. Doubtfire?
Latex.


I knew they said it in the movie.What is that stuff that they used to make the mask in the movie Mrs. Doubtfire?
It's a theatrical silicone, I would imagine. Probably a decent prop store - look on line.