After securing all my clay models, I mixed the plaster of paris and slowly poured it over the models. I poured one mold free, in order to show you what would happen. If your design was especially intricate, you may have to carefully scrape out the extra clay with a needle or toothpick.ĬAUTION: Do not wash or rinse your mold once it has dried! Water will damage the plaster!Īfter laying down a tinfoil surface to pour on, I used cardstock, tape, and scissors to make borders for two out of three molds. Once the plaster has dried and cured (24 hours for most plasters), you can carefully peel the clay out of your mold. Make sure you cover the all of the clay with between 1/4th inch and 1 inch of plaster. Now, slowly pour your plaster over your clay model, making sure the plaster has enough time to disperse any bubbles. WARNING: Do not rinse plaster down your sink, as plaster can damage your pipes! Mix thoroughly to avoid any hidden clumps of powder. When you have your workspace ready, take the plaster of paris and mix it with water according to the instructions on the packaging.
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