PTC heat foils: Self-regulating heating elements
‘Made in Germany & Europe’

Are you looking for heating elements that

✓ work without external controls and are self-regulating?
✓ are nevertheless flexible and cost-effective?
✓ are manufactured in Germany & Europe and can be easily integrated into your product?

In addition to our CNC-embroidered heat mats, we offer innovative PTC heating elements. These self-regulating, flat heat foils can also be customised to your specific requirements and offer their very own advantages.

Self-regulating, energy-efficient, ultra-flat

PTC heat foils for your industrial application

PTC heating foils made of cellular foam manufactured by Embro

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PTC Heizfolien mit fertigem Werkstück vom Hersteller Embro

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PTC heat foils with foam manufactured by Embro

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PTC heat foils with connection manufactured by Embro

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PTC heat foils & heating elements manufactured by Embro

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What are PTC heat foils?

PTC heat foils are flat, flexible heating elements in which a special heating layer made of PTC material is embedded between the carrier and cover layers.

They only heat up as much as is necessary for the respective application and do not require any additional sensors or control units. This makes them particularly safe, economical and low-maintenance.

PTC heat foils are used wherever uniform, extensive heat is required, e.g. in batteries, technical devices, medical applications or vehicle components.

PTC heat foils: special paste ensures integrated heat regulation

PTC foils are produced using PTC paste (Positive Temperature Coefficient) and conductive silver in a screen printing process. The PTC paste is a special conductive organic substance that contains components with a positive temperature coefficient of electrical resistance.

This property enables the production of heating elements that can regulate their own temperature without external control elements. And this with extremely low construction heights from 200µ.

Do you want to reliably control the temperature of your products without additional control effort? Then rely on self-regulating PTC heat foils manufactured by Embro.

Battery heater thermal image: PTC heat foils & heating elements manufactured by Embro

How does the temperature control work?

When current flows through the PTC paste, it heats up.
As the temperature rises, the electrical resistance of the paste increases.
This increased resistance limits the flow of current, which reduces further heating.
This effect leads to a self-regulating heating effect in which the temperature is kept at a stable level.

The advantages of PTC heat elements at a glance:

Self-regulating and safe heat: The integrated PTC technology enables automatic adjustment of the heat output, preventing overheating and ensuring safe operation. No external control is required.

Energy efficiency and cost savings: The intelligent heat distribution minimises energy consumption, reduces operating costs and protects the environment.

Space-saving integration and shape flexibility: The low installation height (from 200µ) and low weight enable space-saving integration, while the flexible shape allows adaptation to different geometries.

Fast response times and flexibility: Short heat-up times enable immediate use and the flexible design allows use in almost any product and any application.

Maintenance-free and fault-resistant: As there is no wear and tear, no regular maintenance is required. In addition, the heating performance is not significantly affected by partial damage or interruptions to the heat foil, which increases reliability. Continued operation is therefore possible even in the event of damage.

EMC compatibility and even heat distribution: Low electromagnetic emissions enable use in sensitive electronic environments, while the homogeneous heat output ensures even temperature control.

Precise temperature control: PTC technology enables the desired temperature to be maintained very precisely.

Do you need a specific PTC heating element for your product? We look forward to hearing your ideas!

Quality Made in Germany & Europe

Our products meet the highest quality standards and are characterised by precision, reliability and efficiency. Naturally manufactured according to German and European industrial standards.

Application example: PTC heat foils for optimised battery performance

PTC heat foils can be integrated into numerous applications. For example, these heating elements play a decisive role in optimising the performance and service life of batteries, especially lithium-ion batteries. Thanks to their ability to self-regulate heat dissipation, they enable efficient temperature management, which is advantageous in the following areas:

Preheating batteries:
At low temperatures, PTC heat foils provide fast and even preheating to ensure battery performance.

Temperature management:
They contribute to an even temperature distribution within the battery pack, preventing hotspots and extending the service life of the cells.

Frost protection:
In extreme sub-zero temperatures, PTC heat foils protect the batteries from damage by keeping them at a safe temperature.

The self-regulating properties of the PTC heat foils ensure safe operation and minimise the risk of overheating, which is particularly important in applications such as electric vehicles.

You can find out more about electric heat mats and battery heaters in our article Heat mats for lithium-ion batteries.

Typical applications for PTC heat films

Automotive industry

PTC heat foils are used in the automotive industry for a variety of applications, including seat heaters, mirror heaters, steering wheel heaters and battery preheating systems.

Their fast and even heat dissipation as well as their robustness and durability make them ideal for use in vehicles.

PTC heat foils are particularly important for the thermal management of batteries in the field of electromobility.

Medical technology

In medical technology, PTC heat foils are used for applications such as patient warming, infusion warming, incubators and medical devices.

Their precise temperature control and ability to distribute heat evenly are crucial for medical applications where a constant and safe temperature is required.

Household appliances

PTC heat foils are used in household appliances such as coffee machines, toasters, irons, tumble dryers and warming plates.

Their efficiency, safety and durability make them the ideal choice for use in appliances that require a reliable heat source.

Electromobility

In electromobility, PTC heat foils play a crucial role in the thermal management of batteries and interior heating systems.

They enable batteries to be preheated quickly and efficiently at low temperatures and ensure a pleasant interior temperature.

The self-regulating property of PTC heat foils is particularly important for this area of application.

Industrial applications

PTC heat foils are used in a wide range of industrial applications, e.g. for heating control cabinets, controlling the temperature of liquids, drying materials and heating process systems.

Their robustness, reliability and adaptability to different shapes and sizes make them ideal for use in demanding industrial environments.

PTC heat foils are also increasingly being used in the aviation industry.

In the automotive, medical technology and industrial sectors, PTC heat foils are a versatile, safe and efficient heating technology that can be successfully integrated into a wide range of products and industries.

Customised heating solutions manufactured by Embro

With our many years of experience in the development and production of high-quality heating elements, we are your ideal partner for customised PTC heat foils. We understand that every application is unique and therefore offer solutions that are precisely tailored to your specific needs. Quality, reliability and sustainability are always at the centre of our work.

PTC heat foils with finished workpiece manufactured by Embro

Technical specifications of the PTC heat foils

Dimensions of 960 mm x 650 mm are possible in ranges from 40 to 120 °C and a maximum voltage of up to 1000 volts. The films consist of several layers, including a PET carrier, a PET film as insulation, PTC paste and conductive silver. Depending on the requirements, an adhesive lamination and foam can be integrated.

We will be happy to provide you with precise technical details on materials, performance spectrum, temperature ranges and connection technology on request.

Get a non-binding consultation now

Markus Flechsing

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PTC heat foils: Self-regulating heating elements ‘Made in Germany & Europe’