Birk's silicone heaters are rugged, flexible, waterproof and chemical resistant. They can be combined with many components. Thermostats, fuses, thermocouples, RTDs, thermistors, connectors, heat sinks, wiring harnesses, motors or any other hardware our customer desires are available upon request. Depending on your application needs, Birk manufactures both resistance wire and etched foil circuits in our silicone rubber heaters. There are advantages to each circuit type. Resistance wire is more robust in dynamic applications requiring a silicone heater and foil circuits are a perfect match for applications requiring very even heat distribution. Both circuit types can be designed with varying watt densities, dual voltages and multiple heated zones.