Skip to content
Close-up image of various light blue geometric shapes, including rectangles, circles, and irregular forms, arranged in an overlapping manner. Some shapes have holes in the middle, and the scene is softly lit by LED modules, creating shadows and depth.
A blue circle is filled with evenly spaced horizontal black lines, creating a striped pattern reminiscent of LED modules. The lines make the blue color appear as alternating light and dark blue horizontal stripes within the circle against a white background.

N65 – Electrically insulating thermally conductive film

Non-silicone electrically insulating thermal interface film

N65 is our high-performance, non-silicone electrical insulating thermal interface material, designed for superior heat management in the most demanding environments. Featuring an impressive thermal conductivity of 6.5 W/mK

Thal Article Number: N65

Performance Materials: Silicone-free electrically insulating thermally conductive film

N65 – Electrically insulating thermally conductive film - Blue

N35 is a soft, electrically insulating film with excellent thermal conductivity, making it ideal for applications where efficient heat dissipation is crucial. This silicone-free material is enhanced with thermally conductive additives, ensuring high thermal conductivity, which aids in effectively transferring excess heat to a heatsink.

Additionally, N35 is available in a fiberglass-reinforced version for added robustness, reduced deformation during handling, and enhanced penetration resistance for extra assurance in meeting electrical insulation requirements. The combination of high conductivity and the material’s inherent softness ensures efficient heat transfer while maintaining its essential insulating properties.

Ordering Example

Very nice to work with. This is exactly what we were looking for for our project!


N65 – Electrically insulating thermally conductive film specifications

Introducing our advanced Non-Silicone Electrically Insulating Thermal Interface Material, expertly engineered to meet the stringent requirements of sophisticated electronics and high-temperature environments. This premium interface material stands out for its exceptional thermal conductivity of 6.5 W/mK, ensuring superior heat dissipation that keeps devices operating at optimal temperatures.

Crafted without silicone, this material is perfect for applications where silicone contamination is a concern, such as in clean rooms or sensitive optical and semiconductor processes. It offers excellent electrical insulation properties with a breakdown voltage of 4 kV, providing a safe and reliable barrier against electrical interference.

The inherent flexibility and durability of this thermal interface material allow it to conform seamlessly to surfaces, eliminating air gaps and enhancing thermal transfer efficiency. It is designed to withstand a wide temperature range from -40°C to +150°C, making it versatile enough for use in everything from consumer electronics to automotive power electronics.

Properties Unit N65 Test Method
Base material
Ceramic-filled polyurethane
Standard thickness
Light blue
Thermal resistance Rth
Thermal impedance Rti
Thermal conductivity λ
Breakdown voltage Ud;ac
Dielectric breakdown Ed;ac
Volume resistivity
2.0 x 1011
Dielectric loss factor tan δ
13.7 x 10-3
Dielectric constant ɛr
Tensile strength
Shore A
70 - 85
Possible thicknesses
0.1 - 0.3
Flame rating
Application temperature
-40 to +125
Silicone-Free Electrically Insulating Thermal Conductive Film

Interested in N65 – Electrically insulating thermally conductive film?

Thal Technologies, located in Almere, has been a pioneer in thermal management and LED lighting solutions for over two decades. Our commitment to innovation and excellence drives us to deliver top-tier thermally conductive and electrically insulating materials across a spectrum of electronics applications.

As industry leaders, we excel at tackling complex challenges in thermal management. Our comprehensive approach encompasses consultation, design, assembly, and manufacturing, ensuring that every solution is not only effective but also seamlessly integrated.

At Thal Technologies, we understand the critical importance of precision and reliability. Our tailored solutions are designed to enhance performance and efficiency, making us the partner of choice for businesses seeking cutting-edge thermal management and lighting solutions.

Request a quote or come visit us in Almere, the Netherlands. The coffee is already brewing! We look forward to discussing how we can assist with your needs.
Marko Widman Thal Technologies
Marko Widman
Office Sales T.I.M.
Frequently Asked Questions

N65 – Electrically insulating thermally conductive film FAQ

N65 boasts an outstanding thermal conductivity of 6.5W/mK, making it ideal for rugged and demanding applications. Its unique composition, including ceramic-filled polyurethane, ensures excellent performance even in silicone-sensitive scenarios. The material’s inherent softness eliminates micro air voids between contact surfaces, enhancing its thermal efficiency. Here, we delve into everything you need to know about our cutting-edge product.
N65 provides high thermal conductivity similar to silicone-based materials but is specifically formulated without silicone, making it ideal for silicone-sensitive applications and environments where silicone contamination must be avoided.
The ceramic fillers enhance the material’s thermal conductivity and stability, allowing for efficient heat transfer while maintaining excellent insulative properties.
Absolutely, N65 is designed to perform optimally within a temperature range of -40°C to +125°C, making it suitable for various industrial applications including automotive and electronics.
Yes, N65 can be tailored for specific needs with options for thickness, adhesive backing, and fiberglass reinforcement to enhance mechanical strength.
N65 is widely used in electronic components such as CPUs, GPUs, and power modules, as well as in automotive electronics where high thermal conductivity and electrical isolation are required.