How To Cast a Face in Plaster

Step 9 Pour the cast

Set up your mold somewhere stable - the floor is good, especially if your bucket o' plaster is large. Slow & steady is the key here. The plaster takes half an hour or so to set so there is no rush, and the slower you go the less chance you have of leaving air bubbles on the face.

Here's what it looks like:

When you've got it filled up, shake it gently to break loose any air bubbles you might have at the bottom. It doesn't matter if there are some bubbles in the middle, but any at the lower surface - the face itself - will be Unsightly. Tap tap tap!