Polyimide heaters are constructed of a thin, lightweight organic polymer film. Polyimide provides excellent tensile strength, tear resistance and dimensional stability. The heater features excellent physical and electrical properties which result in thermal stability over a wide temperature range. The heater is ideal for applications requiring low outgassing in a vacuum, or resistance to radiation, fungus and chemicals. Polyimide is also very resistant to solvents. The heater operates in environments as low as -319°F (-195°C). Applications include military and aerospace, medical, laboratory research, photographic equipment, optical equipment, LCD displays and computer equipment.