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Thermal Conductive Structural Adhesive

Polyurethane thermal structural adhesive for EV batteries, energy storage, and liquid cooling systems.
  • KOMPA

  • polyurethane-based thermal conductive adhesive

  • China

  • ISO9001, ISO14001, ISO45001, IATF16949, EN45545-2, UL94-V0, NSF61, UL157-2007 Gaskets and Seals. CE, ROHS, PAHS, REACH

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Product Description

Product Overview

KOMPA Thermal Structural Adhesive is a high-performance polyurethane-based thermal conductive structural adhesive developed for electric vehicle batteries, energy storage batteries, and advanced battery PACK applications.

The adhesive is designed to provide both structural bonding and thermal management within battery systems. It is primarily used for bonding battery cells to liquid cooling plates, bonding battery cells to each other, and bonding reinforcement ribs to liquid cooling plates.

In modern EV and energy storage battery systems, the adhesive layer is required to perform more than a simple mechanical bonding function. Battery cells must be securely fixed within the PACK while heat generated during charging and discharging must be effectively transferred to the cooling system.

KOMPA Thermal Structural Adhesive integrates these two functions into one material system.

It can be used as part of the thermal transfer path between battery cells and liquid cooling plates, while providing reliable structural bonding and assembly stability.

Typical applications include:

  • Cell-to-liquid cooling plate bonding

  • Cell-to-cell structural bonding

  • Liquid cooling plate reinforcement

  • Battery PACK assembly

  • EV battery thermal management

  • Energy storage battery systems

KOMPA New Materials Research Institute develops high-performance polymer materials from the molecular level. By designing specific polymer molecular structures and molecular weight systems, KOMPA can develop application-specific adhesive solutions according to different battery designs and customer requirements.

Different battery PACK structures, cell formats, cooling systems, and manufacturing processes require different material properties. Therefore, KOMPA focuses on developing customized polymer materials that are more closely matched to the actual requirements of downstream battery applications.

In addition to thermal structural adhesives, KOMPA provides integrated polymer and high-temperature insulation material solutions for battery PACK manufacturers.


Key Features

Semi-Flowable Formulation

KOMPA Thermal Structural Adhesive features a controlled semi-flowable formulation designed for industrial bonding applications.

The material provides a balance between flowability and application control.

It can spread effectively across the bonding interface while maintaining controlled flow during assembly.

This property is especially important for battery applications where the adhesive needs to cover a relatively large bonding area.

The semi-flowable formulation can help:

  • Improve surface coverage

  • Reduce interfacial gaps

  • Enhance contact between substrates

  • Improve application consistency

  • Support automated dispensing processes

The balance between flowability and stability is important for cell-to-cooling plate bonding.

An adhesive with excessive flow may migrate outside the target bonding area, while an adhesive with insufficient flow may not provide adequate interface wetting.

KOMPA develops the rheological characteristics of the adhesive according to the requirements of battery assembly processes.


Excellent Interface Wetting

Excellent interface wetting is one of the key requirements for reliable battery bonding.

Battery cells, liquid cooling plates, and aluminum reinforcement structures may have microscopic surface irregularities.

A thermal structural adhesive must be able to effectively wet the bonding surfaces and create a stable interface.

KOMPA Thermal Structural Adhesive provides excellent interface wetting performance.

This can help improve:

  • Effective bonding area

  • Adhesive-substrate contact

  • Bonding reliability

  • Interface consistency

  • Thermal transfer efficiency

When used between a battery cell and a liquid cooling plate, good interface wetting is particularly important because the adhesive layer may also form part of the heat transfer path.


Excellent Hydrophobicity

Battery systems may be exposed to humidity, condensation, and changing environmental conditions throughout their service life.

Moisture can negatively affect:

  • Adhesive interfaces

  • Metal substrates

  • Electrical components

  • Long-term material durability

KOMPA Thermal Structural Adhesive features excellent hydrophobicity to help improve resistance to moisture-related degradation.

The high hydrophobicity of the material is suitable for applications requiring long-term performance under demanding environmental conditions.

Potential applications include:

  • Electric vehicle battery packs

  • Energy storage battery systems

  • Outdoor energy storage equipment

  • Liquid-cooled battery systems


Excellent Double 85 Performance

The adhesive demonstrates excellent performance under Double 85 environmental conditions.

Double 85 testing generally refers to exposure to:

  • Temperature: 85°C

  • Relative Humidity: 85%

This accelerated aging environment is widely used to evaluate the long-term durability of materials under combined high-temperature and high-humidity conditions.

Excellent Double 85 performance helps support the reliability requirements of battery applications where adhesive materials may be exposed to:

  • High temperature

  • High humidity

  • Thermal cycling

  • Long-term environmental aging

This property is particularly important for EV batteries and energy storage systems that require long-term reliability.


Excellent Adhesion to 3003 Aluminum

KOMPA Thermal Structural Adhesive provides excellent adhesion to 3003 aluminum.

3003 aluminum is widely used in battery thermal management systems and liquid cooling plate structures.

The adhesive is suitable for bonding applications involving:

  • 3003 aluminum liquid cooling plates

  • Aluminum reinforcement ribs

  • Aluminum structural components

  • Battery thermal management assemblies

Reliable adhesion to aluminum is important because the bonding interface may be exposed to repeated thermal expansion and contraction during battery operation.


Structural Bonding and Thermal Management

The key advantage of a thermal conductive structural adhesive is its multifunctional performance.

Traditional structural adhesives are mainly used for mechanical bonding.

Thermal interface materials are mainly used for heat transfer.

KOMPA Thermal Structural Adhesive is designed to combine both functions.

The adhesive can help:

  • Fix battery components

  • Maintain structural stability

  • Improve interface contact

  • Support heat transfer

  • Simplify material integration

This integrated approach is particularly suitable for advanced EV battery and energy storage system designs.


Product Specifications

Property Description
Product Name Thermal Structural Adhesive
Alternative Name Thermal Conductive Structural Adhesive
Base Chemistry Polyurethane
Material Type Thermally Conductive Structural Adhesive
Appearance Customized according to formulation
Rheology Semi-Flowable
Main Functions Structural Bonding and Thermal Management
Interface Wetting Excellent
Hydrophobicity Excellent
Double 85 Performance Excellent
Aluminum Adhesion Excellent adhesion to 3003 aluminum
Main Substrate Aluminum and battery-related substrates
Main Application EV Battery and Energy Storage Battery
Typical Application Cell-to-Cold Plate Bonding
Other Applications Cell-to-Cell Bonding / Cooling Plate Reinforcement
Application Method Industrial Dispensing
Customization Available

The specific technical data may vary according to the final formulation, application conditions, and customer requirements. Please contact KOMPA for detailed technical data and application-specific recommendations.


Request a Customized Thermal Structural Adhesive Solution

Looking for a thermal conductive structural adhesive for EV batteries, energy storage systems, or liquid cooling plate assemblies?

KOMPA provides application-specific polyurethane adhesive solutions for battery PACK manufacturers and new energy companies.

Our technical team can support:

  • Product selection

  • Sample development

  • Application evaluation

  • Customized polymer development

  • Battery material solutions

Contact KOMPA today to discuss your application requirements and develop a suitable thermal structural adhesive solution for your battery project.

KOMPA E-CATALOGUE.pdf

Factory Video

Lab Test Video

 Factory Show

precision cutting of silicone foam gaskets for automotive applications

 Lab Show

silicone foam material fire resistance test in laboratory

Applications

  • EV battery packs and energy storage systems

  • On-board chargers (OBC), inverters, and BMS units

  • IGBT & MOSFET power modules

  • LED lighting & telecom base stations

  • Consumer electronics & industrial control boards

fire resistant silicone foam sheet applied in EV battery system

 Certification

silicone foam material certified with RoHS and REACH compliance

Available Forms

KOMPA Thermal Structural Adhesive can be developed and supplied according to the customer's application and production process.

Customized Packaging

Packaging formats can be customized according to the material system and dispensing equipment.

Potential packaging options may include:

  • Cartridge packaging

  • Industrial containers

  • Customized packaging systems

The final packaging format should be selected according to:

  • Adhesive viscosity

  • Component configuration

  • Dispensing equipment

  • Production volume

  • Storage requirements


Industrial Dispensing

The semi-flowable formulation is suitable for industrial adhesive application processes.

Depending on the customer's production line, the adhesive can be evaluated for:

  • Manual dispensing

  • Semi-automatic dispensing

  • Automated dispensing

  • Meter-mixing dispensing systems

Application parameters can be optimized according to the required adhesive quantity, bonding area, and production cycle.


Customized Material Development

KOMPA can develop customized thermal structural adhesive solutions according to specific customer requirements.

Customization may consider:

  • Battery cell type

  • Battery PACK design

  • Cooling system structure

  • Substrate material

  • Required thermal performance

  • Adhesive application process

  • Curing requirements

  • Environmental conditions

This enables the adhesive to be developed for the actual application rather than simply selected from a standard product range.


Applications

EV Battery Packs

KOMPA Thermal Structural Adhesive is primarily designed for new energy vehicle battery applications.

It can be used for:

  • Battery cell bonding

  • Cell-to-liquid cooling plate bonding

  • Cell-to-cell bonding

  • Battery PACK structural bonding

  • Thermal management integration

During battery operation, cells generate heat during charging and discharging.

The thermal structural adhesive can help establish a thermal transfer interface between the battery cell and liquid cooling system while also providing structural fixation.


Cell-to-Liquid Cooling Plate Bonding

Cell-to-liquid cooling plate bonding is one of the main applications of thermal structural adhesive.

A typical structure is:

Battery Cell → Thermal Structural Adhesive → Liquid Cooling Plate → Cooling Medium

In this structure, the adhesive provides both:

  • Structural bonding

  • Thermal interface support

Excellent interface wetting helps the adhesive contact the bonding surfaces effectively.

The semi-flowable consistency allows the material to spread across the target bonding area while maintaining controlled application behavior.

The adhesive is suitable for battery architectures that require the integration of mechanical bonding and thermal management.


Cell-to-Cell Bonding

Thermal structural adhesive can also be used for bonding between battery cells.

The adhesive may help provide:

  • Cell positioning

  • Structural fixation

  • Assembly stability

  • Vibration resistance

The exact adhesive design should be selected according to the cell type, cell arrangement, bonding area, and production requirements.

KOMPA can provide customized material development for different battery structures.


Energy Storage Batteries

Energy storage systems require reliable structural materials capable of long-term operation.

KOMPA Thermal Structural Adhesive can be used in applications including:

  • Energy storage battery PACKs

  • Industrial energy storage systems

  • Commercial energy storage systems

  • Liquid-cooled energy storage batteries

The material's hydrophobicity and Double 85 performance support applications requiring durability under demanding environmental conditions.


Liquid Cooling Plate Reinforcement Ribs

Liquid cooling plates may require reinforcement ribs or additional structural components to improve their mechanical stability.

KOMPA Thermal Structural Adhesive can be used for bonding:

  • Reinforcement ribs

  • Aluminum structures

  • Cooling plate components

  • Battery thermal management components

The excellent adhesion to 3003 aluminum makes the material suitable for liquid cooling plate reinforcement applications.


Battery Thermal Management Systems

As battery energy density continues to increase, effective thermal management becomes increasingly important.

Thermal structural adhesive can become part of the interface between the heat-generating battery cell and the cooling system.

The adhesive helps integrate:

  • Mechanical fixation

  • Interface contact

  • Thermal management

This multifunctional performance can help simplify the material structure of battery PACK systems.


Why Choose KOMPA

Molecular-Level Polymer Design

KOMPA New Materials Research Institute develops polymer materials from the molecular level.

By designing specific polymer structures and molecular weight systems, we can optimize material properties according to actual application requirements.

This approach enables the development of materials with a balanced combination of:

  • Adhesion

  • Flexibility

  • Mechanical performance

  • Thermal management capability

  • Environmental durability


Application-Specific Material Development

Different battery designs require different adhesive solutions.

KOMPA can develop products according to:

  • Battery cell structure

  • Battery PACK architecture

  • Liquid cooling system

  • Substrate material

  • Bonding area

  • Production process

  • Environmental conditions

The objective is to provide a material solution that matches the customer's actual application.


Experience in New Energy Materials

KOMPA focuses on advanced materials for new energy and industrial applications.

Our product portfolio includes:

  • Thermal structural adhesives

  • Silicone foam

  • Thermal pads

  • Thermal insulation materials

  • High-temperature insulation materials

  • Ceramic fire-resistant silicone materials

  • Thermal potting materials

This allows KOMPA to provide integrated material solutions for battery PACK manufacturers.


Integrated Battery PACK Material Solutions

A modern battery PACK may require multiple material technologies.

Different components may require:

  • Structural bonding

  • Thermal management

  • Electrical insulation

  • Thermal insulation

  • Fire protection

  • Sealing and cushioning

KOMPA can support customers with a broader portfolio of polymer and high-temperature material solutions.

This helps customers coordinate material development across different parts of the battery system.


Technical Support and Customized Development

KOMPA works with customers to understand their actual application requirements.

Technical development may include:

  • Application analysis

  • Material selection

  • Sample development

  • Bonding evaluation

  • Substrate compatibility testing

  • Process optimization

For projects requiring customized performance, our technical team can work with customers to develop application-specific solutions.


Frequently Asked Questions

What is thermal structural adhesive?

Thermal structural adhesive is an adhesive material that combines structural bonding with thermal management functionality.

It is designed to mechanically bond components while also supporting heat transfer through the adhesive interface.


What is thermal structural adhesive used for in EV batteries?

It is mainly used for:

  • Bonding battery cells to liquid cooling plates

  • Bonding battery cells to each other

  • Bonding liquid cooling plate reinforcement ribs

  • Integrating structural bonding and thermal management


Can this adhesive bond 3003 aluminum?

Yes. KOMPA Thermal Structural Adhesive is designed to provide excellent adhesion to 3003 aluminum.

This makes it suitable for liquid cooling plates and aluminum reinforcement structures.


Is this a polyurethane thermal adhesive?

Yes. The product is a polyurethane-based thermal conductive structural adhesive designed for new energy battery applications.


What is Double 85 performance?

Double 85 refers to an accelerated environmental aging condition of approximately 85°C and 85% relative humidity.

It is used to evaluate the durability of materials under combined high-temperature and high-humidity conditions.


Is the adhesive suitable for energy storage batteries?

Yes. The adhesive can be used in energy storage battery systems requiring structural bonding and thermal management.

The final material selection should be based on the specific battery design and operating conditions.


Can the adhesive be customized?

Yes. KOMPA can develop customized thermal structural adhesive solutions according to the customer's:

  • Battery structure

  • Substrate material

  • Cooling system

  • Application process

  • Environmental requirements


What information is needed for a customized adhesive solution?

To recommend a suitable solution, customers are encouraged to provide:

  • Substrate materials

  • Bonding area

  • Battery cell type

  • Cooling system design

  • Required adhesive thickness

  • Application method

  • Operating temperature

  • Environmental requirements

This information helps KOMPA evaluate the application and develop a more suitable material solution.

Label Content

Each carton is labeled with product code, lot number, and specification details.

Storage & Handling Instructions

  • Store in a dry, ventilated area away from direct sunlight

  • Recommended storage temperature: normal temperature

  • Avoid heavy pressure or sharp objects

  • Shelf life: 12 months from production date if unopened and properly stored

Optional Custom Packaging

  • Vacuum packaging for long-term storage

  • Die-cut parts on release liner roll or sheet

  • Barcode or QR-code labeling

  • Inner trays or custom-fit foam inserts for precision parts

  • OEM or neutral packaging available upon request

Additional Packaging Features

  • Moisture-proof and dust-proof wrapping

  • Export-ready wooden pallets for large volume shipments

Shipping

  • Global shipping via air, sea, or courier

  • Lead time: 7–10 working days based on order volume and customization

  • Express prototyping support for urgent projects

secure packaging of thermal insulation silicone sheets for battery system clients

Our Key Partners Include

  • Huawei – Global leader in communications, smart devices, and energy solutions

  • ZENERGY – Trusted supplier specializing in new energy battery systems

  • SAIC Motor – One of China’s largest and most innovative automotive manufacturers

  • Dongfeng Motor – Leading state-owned company in commercial and passenger vehicles

  • CRRC – World’s largest manufacturer of rail transit equipment and systems

  • CALB – Global innovator in lithium battery technology and energy storage solutions

KOMPA silicone foam key partner


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