PTC heater with insulating film1. Configuration.2. Some samples of uses. If the surface temperature of end product was under 260℃, PTC is very suitable as a heating element. Main purposes: hair straightener,hair curler, wax melting heater,vapor generator,humidifier,water boiler,liquid warmer,coffee warmer,polymer press-coating heater,hot glue gun,chocolate extruder,shoe dryer,hand/foot warmer,massager,physical therapy heater.