cement

Hydrocal is significantly more expensive than portland cement, and harder to source. Does hydrocal have any additional benefits outside of high strength and fast set time?

Hello fellow artist and creators, I have a really dumb question as I am new to casting, and want to do a big project that i cant get help on. But would it be possible to make a full size bust casting/or full head and using the clay bust to put on a mannequin body so I don't have to...