Thermo Self-adhesive Heating Pads - Thermo Technologies THERM12V14W, The Thermo Therm12V 14W heating foil is made from flame-retardant polyester foil with a silicon protective paper and one self adhesive face. It is suitable for application to all surfaces and is cut and rupture resistant. This quality product protects surfaces, equipment, housings, circuits, even various fluids against freezing temperatures safely. It is not thermostatically controlled and should not be operated continuously without a suitable thermal regulation system in order to prevent overheating and possible damage.The specified surface temperature corresponds to a mean value with an ambient temperature of 20 °C (45% r.H.) in still air. The target heating temperature is extremely dependent on external influences such as the presence and type of substrate, thermal insulation, ambient temperature, air flow, humidity, operating voltage and tolerances. Thermo Technologies THERM12V14W Circular Heating Foil 12V 14W 50-60°C