How Cutouts, Edges, and Openings Affect a Silicone Heater Layout
https://industrial-heater-lab.theglensecret.com/ito-glass-heater-technology-explained-for-engineers-and-designers
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