In the process of setting up the studio, I decided I needed a plaster wedging surface, so I built the frame and set out to learn more about plaster. I’ve seen references to Potters Plaster #1, and, of course, Plaster of Paris, but I didn’t know what was different or which I should use. As usual, Google was the right place to start. I found a couple nice web pages with good information about plaster and it’s applications. While it’s more focused on molding and slip casting, the following information should be a good resource for any potter wanting to find out more about plaster in general.