Qnity™: Electronic materials for insulation and EMI shielding

Qnity™ is a brand of high-performance electronic materials used in systems where electrical insulation, electromagnetic compatibility and thermal reliability are critical to product lifespan.

ADDEV Materials distributes Qnity solutions in Europe and supports the Power & Mobility industries with stock, converting, and technical support. The page presents the two priority sub-brands for ADDEV: Kapton® for electrical insulation and Laird™ for EMI shielding.

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Qnity: high-performance electronic materials brand

Qnity A range of materials for electronic, electrotechnical and power systems applications. The brand meets the needs of engineers who must secure insulation, electromagnetic shielding and the mechanical integration of sensitive components.

At ADDEV Materials, Qnity is positioned around two complementary families: Kapton®, polyimide film for high-temperature electrical insulation, and Laird™, EMI shielding solutions to protect electronic boards, enclosures, connectors and systems from interference.

This approach allows for material selection based on the dominant constraint: electrical stress, temperature, EMI frequency, available compression, assembly geometry, or need for a converted format.

Pourquoi Qnity répond aux contraintes des systèmes Power & Mobility

Qnity solutions are used when electronic reliability directly depends on electrical insulation and control of electromagnetic interference. They enable the design of more compact, safer sub-assemblies that are better suited to high-density electronic environments.

In the Power & Mobility markets, the main constraints are voltage rise, converter switching speed, the proximity of electronic boards, and the need to maintain stable performance in mass production.

Kapton® : high-temperature electrical insulation

Laird™ : EMI shielding and conductive materials

Solutions adapted for batteries, motors and converters

Distribution Quantity in Europe by ADDEV Materials

Qnity sub-brands available at ADDEV Materials

ADDEV Materials distributes Qnity solutions with a focus on Kapton® and Laird™. These two sub-brands address distinct but often complementary needs in Power & Mobility electronic architectures.

Kapton® is used for high-temperature electrical insulation, particularly in electric motors, batteries, transformers, windings, and electronic components subjected to thermal stress.

Laird™ materials of’EMI shielding Conductive foams, fabric over foam, EMI shielding tapes, and conductive elastomers. These solutions are used to limit electromagnetic interference and maintain the electrical continuity of assemblies.

Marque Qnity	Technology family	Main function	Types of applications
Kapton®	Polyimide film	High-temperature electrical insulation	Motors, batteries, transformers, power electronics
Laird™	EMI shielding & thermal materials	Electromagnetic shielding and thermal management	Electronic enclosures, PCBs, converters, critical equipment
Pyralux®	Flexible circuit materials	High-reliability electronic interconnection	Flex circuits, embedded electronics, compact systems
Riston®	Photoresist films	Printed circuit board manufacturing	PCB, industrial electronics, interconnect solutions

Key technical properties of Qnity solutions

The properties depend on the sub-brand, grade and converted format. The criteria below help guide the selection between Kapton insulation and Laird EMI shielding.

Electrical isolation: dielectric strength, thermal resistance, thickness, compatibility with lamination and die-cutting.
EMI shielding attenuation in dB, surface conductivity, contact resistance, frequency range and compression behaviour.
Mechanical integration: format, radius of curvature, cutting repeatability, adhesion, and compatibility with electronic casings or boards.
Environment temperature, humidity, vibrations, fire/smoke stresses, and long-term stability.

Electrical insulation

Kapton®

High-temperature polyimide film for dielectric stress

EMI shielding

Laird™

Conductive solutions for electrical continuity and EMI attenuation

Thermal management

Thermal interface

Materials intended to improve thermal transfer in components

Electronic integration

Printed circuit boards and modules

Formats suitable for housings, cards, harnesses, and embedded systems

Converting ADDEV

Bespoke

Cutting, slitting, laminating and ready-to-install technical parts

Distribution

Europe

ADDEV Materials is an authorised distributor of Qnity in Europe

Industrial applications of Qnity solutions

Qnity materials are used in the Power & Mobility sub-markets where electrical insulation, electromagnetic compatibility, and thermal management directly influence system reliability.

Energy Storage & BESS

Electrical insulation of battery modules with Kapton®
EMI Shielding for BMS Boards with Laird™
Shielding of converters, sensors and harnesses
Cut parts for compact interfaces

Datacentre & Power Electronics

EMI Shielding of Sensitive Electronic Equipment
Electrical isolation of critical areas
Thermal management of boards and modules
Converted formats for serial integration

Automotive & electric mobility

High-voltage motor and component isolation
EMI shielding for embedded systems
Shielding of computers, converters and sensors
Cutting according to assembly constraints

Rail

Isolation for traction systems and converters
EMI shielding for onboard equipment
Materials suitable for vibration and integration constraints
Solutions converted according to project specifications

Industry & Energy

EMI shielding for electrical cabinets and equipment
Power systems isolation
Management of sensitive electronic interfaces
Cutting, laminating and kitting to client specification

Bespoke transformation of Qnity materials

ADDEV Materials transforms Kapton® films and Laird™ solutions into ready-to-integrate formats. Converting adapts Qnity materials to geometry, assembly, and series production constraints.

This approach reduces manual operations for the client and secures the dimensional repeatability of parts used in batteries, motors, converters, electronic housings, and embedded systems.

Die-cutting

Slitting

Lamination

Format cutting

Kitting

Bespoke packaging

Pourquoi choisir ADDEV Materials pour Qnity

Choosing Qnity at ADDEV Materials secures the selection, availability, and industrial integration of high-performance electronic materials.

Distribution Quantity in Europe to support Kapton® and Laird™ needs.
Stock available to reduce supply risks on industrial projects.
Integrated converter to deliver formats adapted to process constraints.
Technical support to select the material according to voltage, temperature, EMI frequency and usage environment.
Power & Mobility Approach suitable for batteries, electric motors, rail, datacentres, energy, and industry.

Need a Qnity solution for your application?

Are you looking for Kapton® film for electrical insulation, a Laird™ solution for EMI shielding, or Qnity material suitable for a critical electronic system? ADDEV Materials can help you define the right material, format and level of processing for your application.

What to remember

Qnity brings together high-performance electronic materials brands, including Kapton® and Laird™.
Kapton® addresses high-temperature electrical insulation needs for motors, batteries, and power systems.
Laird™ meets the EMI shielding, electrical continuity, and thermal management needs of electronic systems.
ADDEV Materials is an authorised Qnity distributor in Europe.
ADDEV transforms Qnity materials into custom formats: cut parts, laminates, slit rolls, and kits.

FAQ — Qnity, Kapton® and Laird™

What is Qnity?

Qnity is a brand of high-performance electronic materials used for electrical insulation, EMI shielding, and integration into industrial electronic systems.

Qnity is a company that provides technology solutions, and Laird™ is a global technology company that designs and manufactures electronic components. Kapton® is a brand of polyimide film manufactured by DuPont, which is often used in electronic applications due to its high thermal stability and electrical insulation properties. Therefore, the link between them is that Qnity might use components or materials manufactured by Laird™ in their technology solutions, and Kapton® film could be a material used in these components or integrated into the solutions developed by Qnity. It's common for technology companies to source materials and components from various suppliers like Laird™ and use specialised films like Kapton® in their product development.

Kapton® and Laird™ are two Qnity sub-brands distributed by ADDEV Materials. Kapton® meets the needs for high-temperature electrical insulation, while Laird™ covers EMI shielding solutions and conductive materials.

Kapton® peut être utilisé dans une architecture Power & Mobility dans diverses situations, principalement en raison de ses propriétés uniques. Voici quelques applications courantes : * **Isolation électrique :** Le Kapton® est un excellent isolant électrique, le rendant idéal pour les câbles et les harnais dans les systèmes électriques des véhicules. Il peut résister à des températures élevées et à des tensions élevées, ce qui est crucial dans les environnements de haute puissance. * **Protection thermique :** Sa capacité à supporter des températures extrêmes (à la fois élevées et basses) en fait un matériau de choix pour les applications où une protection contre la chaleur ou le froid est nécessaire. Cela inclut l'encapsulation de composants sensibles à la température. * **Flexibilité et résistance mécanique :** Le Kapton® est un film souple et résistant. Il est donc bien adapté pour les câblages flexibles et les connexions qui peuvent subir des vibrations ou des contraintes mécaniques, ce qui est fréquent dans les applications de mobilité. * **Enroulements de moteur et de générateur :** Les enroulements des moteurs électriques et des générateurs, notamment dans les véhicules électriques et hybrides, nécessitent un isolant qui peut supporter des charges thermiques et électriques importantes. Le Kapton® est souvent utilisé pour cela. * **Batteries :** Dans les systèmes de batteries, le Kapton® peut être utilisé comme matériau isolant et de séparation entre les cellules ou les couches de la batterie, contribuant à la sécurité et à la gestion thermique. * **Circuits imprimés flexibles (Flex PCBs) :** Bien que moins courant dans l'architecture Power & Mobility stricte pour des raisons de coût, le Kapton® peut être utilisé pour créer des circuits imprimés flexibles qui doivent opérer dans des environnements difficiles ou nécessitent une grande flexibilité. * **Protection de composants :** Il peut être utilisé pour protéger des composants électroniques sensibles contre la chaleur, l'humidité ou les décharges électrostatiques. En résumé, le Kapton® est utilisé lorsque des exigences élevées en matière d'isolation électrique, de résistance thermique, de flexibilité et de durabilité sont présentes dans le contexte de systèmes de puissance et de mobilité, tels que les véhicules électriques, les satellites, ou d'autres applications où les conditions sont exigeantes.

Kapton® is recommended when the system combines electrical voltage, high temperature, compactness, and a need for long-term stability. It is used in electric motors, batteries, transformers, converters, and electronic components.

When to use a Laird™ EMI shielding solution?

A Laird™ solution is relevant when electromagnetic interference could disrupt a signal, sensor, electronic board, converter or an embedded system. The choice depends on the frequency, attenuation level, available compression and integration geometry.

The difference between electrical insulation and EMI shielding is: **Electrical Insulation:** * **Purpose:** To prevent electrical current from flowing where it's not supposed to, thereby preventing electrical shock, short circuits, and damage to components. It's about stopping the flow of electricity. * **Mechanism:** Achieved by using materials with very high electrical resistance (dielectrics) like rubber, plastic, or ceramic. These materials don't conduct electricity. * **Focus:** Preventing conduction. **EMI Shielding (Electromagnetic Interference Shielding):** * **Purpose:** To block or attenuate electromagnetic radiation (radio waves, radio frequency interference) from entering or leaving an area. It's about preventing the unwanted transfer of electromagnetic energy. * **Mechanism:** Achieved by using conductive materials like metals (aluminium, copper, steel) or conductive coatings. These materials reflect or absorb electromagnetic waves, preventing them from passing through. * **Focus:** Preventing radiation. **In summary:** * **Electrical insulation** stops **current** from flowing through a material. * **EMI shielding** stops **electromagnetic waves** from passing through a barrier. While some materials can provide both electrical insulation and EMI shielding (e.g., a metal enclosure that is also insulated to prevent contact), their functions are distinct.

Electrical insulation aims to prevent short circuits, arcs, or contact between conductors. EMI shielding aims to limit electromagnetic emissions or interference. In a power system, both functions may be necessary.

Which Power & Mobility markets use Qnity materials?

Qnity materials are used in BESS batteries, electric vehicles, motors, converters, rail systems, datacentres, energy equipment, and industrial electronic systems.

Can ADDEV Materials provide custom Qnity formats?

Yes. ADDEV Materials can transform Qnity materials through bespoke cutting, slitting, laminating, kitting and packaging to deliver parts or formats ready for production integration.

How to choose between Kapton® and Laird™?

The choice depends on the primary function. Kapton® is preferable for high-temperature electrical insulation. Laird™ is preferable for electromagnetic compatibility, earthing, electrical continuity or EMI shielding.