How hot does it have to be to harden clay?
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Studied at the University of Manchester, Lives in Manchester, UK.
Most polymer or oven-based clays will harden after they are cooked at 265 --F (129 --C) to 275 --F (135 --C) for 15 minutes per 1?4 inch (6.4 mm) of thickness. Remove the baking sheet from the oven, and place it on a heat-resistant surface. Allow the clay items to cool at room temperature before removing.
2023-06-10 09:50:35
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Daniel Moore
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Most polymer or oven-based clays will harden after they are cooked at 265 --F (129 --C) to 275 --F (135 --C) for 15 minutes per 1?4 inch (6.4 mm) of thickness. Remove the baking sheet from the oven, and place it on a heat-resistant surface. Allow the clay items to cool at room temperature before removing.