Flexible Heaters

Flexible Heaters | Etched Foil Heating Elements | Foil Heater System | Flexible Foil Heating | Etched Foil Element

Versatile Flexible Heaters for Precise Temperature Control

Flexible heaters need to be lightweight and compact, but they also need to work quickly and minimize power consumption. Whether the application is a deicer on an aircraft wing, a heated mirror on a car, or temperature control inside medical or battery equipment, the heating element at the core of the assembly drives performance.

Switzer's precise process for etching traces on metal foil gives manufacturers tight control over temperature, dimensional accuracy, and resistance. Our assembly capabilities can also deliver a fully-encapsulated flexible heater ready for installation.

Expertise Across Industries

Learn more about the specific ways Switzer can support custom heater solutions as requirements become more engineered, compact, and application-specific.

Why Engineers Choose Etched Foil Heating Elements

There are two common types of flexible heaters: wire wound and etched foil. Etched foil heating elements have become the engineer's preferred option for the precision, efficiency, and design flexibility they bring to demanding applications. Switzer's photochemical etching process produces traces with the dimensional and resistance accuracy that wire wound elements cannot consistently match.

  • Ideal for tight tolerance resistance control and repeatability.
  • Enables complex trace patterns for uniform or zoned heating.
  • Strong fit for low-profile, space-constrained assemblies.

Manufactured for Efficiency

When it comes to flexible heaters, ensuring you have the proper power, heat distribution, and heat dissipation can be challenging. With our experience, we can make suggestions that will build in efficiencies for your specific application, from the etched foil element itself through to the finished, laminated assembly.

Design Assistance

  • If you need additional expert support to ensure your design will meet your needs, we're here to help. Our engineers can offer design guidance to optimize manufacturability.

Material Control

  • We can etch your provided material or source materials in the metal alloy and laminate combination needed for optimal performance.

Accurate Measurements

  • We take careful consideration of each trace's design and spacing to ensure dimensional and resistance requirements are always met for specific applications and industries.

ISO-Certified Process

  • We manufacture using an ISO-certified, controlled, and traceable process to ensure you're hitting your marks at every step.

Industries We Serve

Flexible heaters and etched foil heating elements give engineers the ability to control temperature precisely, in tight spaces, across a wide range of demanding applications. Our designs have supported customers in:

Military / Aerospace

Lightweight, reliable heaters for de-icing, sensors, avionics, instruments.

Battery / EV

Battery warming, sensor protection, and thermal management.

Industrial Equipment

Process reliability, freeze/condensation prevention, equipment heating.

Food Service Equipment

Fast, even heating for warming cabinets, carts, and holding trays.

Semiconductor / Electronics Equipment

Controlled heat in compact, sensitive environments.

Aviation

Reliable, low-power heating for wing de-icing, pitot tubes, and sensors.

We help engineers control heat exactly where they need it, in tight spaces, with repeatable resistance and geometries.

Our process is exceedingly precise, and our team is knowledgeable about industry regulations. We will work with you to ensure your etched foil heating element allows your finished product to comply with standards. The first step is a finished component that meets the exact specifications of your design.

Features

  • Elements can be etched to dimensional or resistance requirements, or both
  • Full lot traceability, from incoming material through shipment of finished elements
  • Performance depends on proper thermal path and mounting conditions
  • Maximum operating temperature is driven by laminate/system selection, not just foil
  • Power density limits must be matched to application to avoid localized overheating
  • Assembly (lamination, insulation, bonding) is as critical as the etched element itself

We can create your component out of a number of practical and durable metals. Our experts can help you determine the right metal alloy foil and base laminate combination.

Metal Alloy Foil Element

  • Inconel
  • Copper
  • Beryllium Copper
  • Phosphor Bronze
  • Nickel
  • Stainless Steel
  • Nichrome

Base Laminate

  • Silicone
  • Neoprene
  • Fabric (reinforcing or layer)
  • Kapton/Polyimide

The Advantages of Etched Foil Heating Elements vs. Wire Wound Elements

There are two common types of flexible heaters: wire wound and etched foil heating elements. Etched foil heating elements have become the engineer’s choice for the many advantages they can bring to an application.
Read More »

Capabilities to Support Your Exact Needs

Precision metal fabrication creates highly-accurate and detailed components. Our capabilities span the full spectrum to ensure every part meets your unique specifications and are delivered exactly when you need them.
  • Start-to-Finish Product Support
  • Trusted Vendor Partners
  • In-House Manufacturing & Engineering
  • Custom Packaging & Shipping

Consult with a Technical Sales Expert About Your Flexible Heater Requirements

At Switzer, our in-house sales team is ready to help you with your specific flexible heater application. Whether you don't currently offer in-house etching or prefer to outsource it, Switzer will ensure you are utilizing your available capacity and keeping up with peak demand. Schedule your consultation to discuss:

Equipment Performance Optimization

Supply Chain Support

Material Customization

Material Consultations

Tracey Hibbert

Your Flexible Heaters Specialist is

Tracey Hibbert

Business Development at Switzer
tracey.hibbert@switzermfg.com

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