What happens if you over bake polymer clay?

How do you know when polymer clay is done baking?

Bake for 15 minutes per quarter inch of thickness. For example, a piece of 1/2″ thickness should be cured for 30 minutes. To test the curing, try pressing the tip of your fingernail into the bottom of your piece after it has cooled; it will leave a mark but will not actually enter the clay.

What happens if you overheat polymer clay?

In addition to phthalate exposure the research indicates that when polymer clay is overheated enough or accidentally burned, the PVC will break down and release highly toxic hydrochloric acid gas.

What temperature and how long do you bake polymer clay?

Bake this polymer clay at 250 degrees F, or 121 degrees C, for 20 minutes per 1/4 inch of thickness.

Are polymer clay fumes toxic?

Although polymer clay fumes are not dangerously toxic, fumes at high temperatures may cause eye, nose or mouth irritation if projects get too hot in the oven.

How long can polymer clay sit before baking?

Polymer clay needs to be baked for at least 35 minutes to give the clay time to cure. However, baking polymer clay for longer will increase its strength. As long as your oven temperature is correct and your pieces are protected with a tent, you can bake for virtually as long as you like.

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Can you bake polymer clay on parchment paper?

Do not ever try to microwave your polymer clay. Sculpey Clay can be baked on a cookie sheet covered with parchment paper or cardstock. Some people like to use ceramic tiles or glass that can serve as both a work and clay baking surface.

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