How Operating Conditions Influence Mica Heater Design Choices
https://precision-heating-elements.rivetgarden.com/posts/how-temperature-sensors-work-with-a-silicone-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