How Do Flexible Heaters Work? Simple Demonstration

At its core, a flexible heater consists of three main layers:

1. Flexible substrate (PI film, silicone, PET, etc.)
2. Resistive heating element (etched foil, printed silver, or wire)
3. Insulation/protective layer.

When electrical current passes through the resistive traces, it generates heat through Joule heating effect. The serpentine or spiral trace pattern ensures even heat distribution across the surface. We can customize the resistance, voltage, and power density to match your specific temperature requirements - from gentle warming at 40°C to high-temp applications reaching 200°C+.