How Thermal Mass Changes the Behavior of a Silicone Heater

https://electric-heat-insights.solsticebrief.com/posts/how-etched-foil-technology-is-used-in-a-kapton-heater

In temperature-controlled assemblies, a silicone heater must deliver heat in a controlled way. It uses silicone rubber around a resistive heating circuit. One useful trait is flexibility. Still, bond quality can change the result