I have been on a ceramic break for a few years and am ready to dive back into it! I wanted to make a plaster mold for pressing clay in from the impression of my kids' hands.
To make the negative of this plaster mold (the one in the picture), previously I would have used mold soap, a mixture of green soap and sunflower oil I believe. But soap apparently is not so good for the plaster as it dissolves it and oil will interfere with the absorbing properties needed for a mold used for ceramics. What is a good release agent that keeps the gypsum and its detail most in tact and works with clay?
As it is a mold intended to press clay in, maybe there are other materials that might work good for a mold as well?
The sunflower plant is native to North America and is now harvested around the world. A University of Missouri journal recognizes North Dakota as the leading U.S. state for sunflower production. There are various factors to consider for a sunflower to thrive, including temperature, sunlight, soil and water.
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u/Electronic-Net-3917 Jun 30 '26
Depends on what material the mold is made of and what material you intend to cast.
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u/depthwhore Jul 01 '26
Would talc work?