A Practical OEM Checklist for Specifying a Mica Heater

https://polyimide-heater-guide.keystonescope.com/posts/how-etched-foil-construction-works-in-a-mica-heater

In heated plates, a mica heater must deliver heat in a controlled way. It uses a resistive heating circuit supported and insulated by mica. One useful trait is high-temperature capability. Still, mechanical stress can change the result