I decided to do my first cement cast piece from a clay sculpture shown in this previous post. The casting process was well worth documenting, even though I only have pictures of some of the steps. It took me ten sessions to do the entire cement cast. Compare that to just three sessions to do the original clay sculpt! Casting takes a lot longer than sculpting. I made this piece at Central Technical School in Toronto.
Here's the first side of the mold built up over the clay figure:
We 'throw' or 'splash' plaster at the clay to form the mold: