Can polymer clay burn?

Yes, polymer clay can burn if you do not bake it according to package instructions. Just like anything you would bake in the oven, if you bake clay too hot for too long, it will burn. That is not the ideal outcome for your beautiful creations. However, polymer clay does not burn easily.

Is baked polymer clay flammable?

It is also worth noting that polymer clay is not flammable. However, polymer clay can burn if the temperature is too hot. It will scorch and darken but not necessarily explode into flames.

Can you bake polymer clay at 200 degrees?

Pre-bake polymer clay for 30 minutes at 200˚ in a preheated aluminum baking box. Cool clay completely. Bake clay again at manufacturer’s recommended higher temperatures for 10 minutes: 265˚ for Fimo and 300˚ for Kato.

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.

How heat resistant is polymer clay?

Polymer clay does not burn unless it reaches temperatures near 350°F (176°C). (Fimo is a bit more sensitive.) If your project actually turns black and bubbles, then your oven is way too hot!

Why did my polymer clay puff up?

Polymer clay is PVC powder mixed with plasticizer and some other stuff (fillers, binders, pigment, etc). And as the heat in the oven rises, the PVC particles swell up a bit and soften, eventually fusing into a solid mass that we know as cured polymer clay.

How do you make polymer clay stronger?

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.