Troubleshooting Slow Heat-Up in a Kapton Heater System

https://industrial-heater-lab.cloudhinter.com/posts/how-to-select-a-mica-heater-for-industrial-heating-applications

In precision instruments, a kapton heater must deliver heat in a controlled way. It uses a resistive foil circuit laminated within polyimide film. One useful trait is custom circuit patterns. Still, hot spots can change the result