aevai wonder if #plaster is oven safe, and how well it works with #polymerclay? might be useful for creating support surfaces for irregular polymer clay shapes, or an alternative to foil for interior structures
ideaPDishprops!
It can work, but be sure to dry it out in an oven below 100c, until it becomes moisture free. Otherwise it could crack from steam pressure.
The key feature that makes plaster bats useful in clay art, is that it absorbs water. Use for too wet clay.
Mix with very fine silica sand is used as an investment medium for lost wax casting in jewelry. So, it can take heat.