... as its middle layer and polyamide film, polyester film, PTFE film etc. Our film heater is made from etched foil ... layer and polyamide film, polyester film, PTFE film and silicone rubber /fiberglass film as its insulated surfaces. The film heaters are able ... film heaters are available in a variety of shapes, sizes, and wattages.SPECIFICATIONSOperating Temperature Range: -200 °C to 260°C for Polyimide ...