How to Make Cold Porcelaincomments (62) July 11th, 2008
Wrap the wet towel over the clay and knead through it. Pause every couple of strokes to pull the towel from the clay, then repeat the process.
In a few minutes, the clay will be cool enough to handle, so you can continue kneading with your hands. Keep a small bowl of cornstarch nearby, and keep lots of it dusted on your hands so the clay doesn't stick. You can also dust the surface of the plate with cornstarch as needed.
After about five more minutes of kneading, your clay will look like this-smooth textured, elastic, and no longer sticky. If you want to add some color to your clay, you can knead in a little acrylic or oil paint at this point.
Place your clay in an airtight container while you proceed to wash all your utensils and surfaces. You don't want any of that glue mixture to dry on anything!
By the way, if you don't want to make your own, you can buy lovely premade cold porcelain in lots of colors online from Cold Porcelain Designs.
When you work with your cold porcelain, prepare a work surface that can double as a drying place. I like to put some foil over a cookie sheet and work on that because when I'm done, I can set the cookie sheet someplace safe while my work dries.