Polyester Heaters
Moisture resistant polyester heaters are used to heat large areas very economically. These heaters are designed and fabricated for many types of configurations to fit the size and shape required in your application. They cover large areas with even heat for flat or gently curved surfaces.
Our polyester heaters can be custom designed with adhesive backing, notches, control measures, insulation and many other options.
Polyester Specifications
- Temperatures to 105°C (221° F)
- Low out-gassing
- Durable, safe and reliable
- Water and acid resistant
Certifications
- UL File No E95403
- Qualified for the CE mark
Options
- Adhesive backing
- Holes, notches, cut-outs for mounting or clearance
- Thermostats
- Thermocouples, RTD, thermistor, etc.
- High limit protection (fuse, thermostat)
Applications
Electronic Equipment
Enclosures
Vacuum
Lab Equipment
Medical Equipment
Aerospace
Medical
Telecommunications
Battery warming
Deicing
Industrial Germination Heaters
Etched Foil Polyester Heaters
The etched foil element has superior heat transfer and exceptionally uniform heat output, resulting in a faster warm-up cycle and longer life.
This polyester heating element can be used on flat or gently curved surfaces to cover large areas with even heat. Heaters can be designed and fabricated in many types of configurations to fit the size and shape required in your application.
Due to the resistance limits of the foil materials, as circuits become larger, the economics of foil versus resistance wire become less attractive.
Our designers use a custom program to calculate the design given the voltage, wattage and resistance. The etched foil polyester heater is fabricated with nickel resistant alloy foil and is acid etched to the specific pattern. The foil is then vulcanized to the polyester sheath material.
Advantages of etched foil versus wire-wound heating elements
- Low watts per square inch
- Distributed wattage
- Complex heat distribution
- Accurate reproduction of complex circuits
- Greater element area over heater sheath
Wire Wound Polyester Heaters
Polyester film heating elements have a maximum surface temperature of 105°C (221°F). They are used on flat or gently curved surfaces to cover large areas with even heat. Polyester film heaters can be designed and fabricated in many configurations to fit the size and shape required in your application.
A fine nickel-chromium alloy wire is spiraled onto a center core of fiberglass, producing a strong, flexible heating element. Electronically controlled precision winding equipment ensures consistency.
Circuits are then hand-wound on permanent tooling providing repeatability of resistance and pattern. Parallel circuits are utilized where possible, permitting continued operation should a single circuit be damaged.
The precision-wound resistance element is then positioned between two layers of polyester. Vulcanization permanently encapsulates the wire.
Wire wound advantages over etched foil element:
- Faster turnaround time on prototype designs
- Lower engineering cost
- More economical pricing at lower quantities