The Global Battery Pack Seals Market is a critical component of the clean energy transition, driven by the exponential growth of Electric Vehicles (EVs), consumer electronics, and grid-scale energy storage systems. These seals are essential for preventing contamination, managing thermal expansion, and ensuring the safety and longevity of battery packs. According to comprehensive market analysis, the global Battery Pack Seals market was valued at USD 1.45 Billion in 2021 and is projected to reach USD 2.68 Billion by 2028, growing at a Compound Annual Growth Rate (CAGR) of 9.2% during the forecast period (2022–2028). This robust growth is fueled by escalating EV production, advancements in battery technology, and stringent safety regulations.

As the world pivots toward electrification, the performance of battery seals directly impacts the reliability, safety, and efficiency of energy storage solutions. In this in-depth analysis, we profile the Top 10 Companies in the Battery Pack Seals Industry—a diverse group of material scientists, engineering specialists, and global manufacturers who are defining the standards for next-generation battery sealing technology.

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🔟 1. Freudenberg Sealing Technologies

Headquarters: Weinheim, Germany
Key Offering: High-performance elastomer seals, custom gaskets, and thermal management solutions

Freudenberg Sealing Technologies is a global leader in sealing solutions, with a strong focus on the rapidly evolving battery and EV markets. The company develops specialized seals that offer excellent resistance to extreme temperatures, coolants, and electrochemical exposure within battery packs. Their products are instrumental in ensuring the operational integrity of battery systems in automotive and industrial applications.

Innovation & Strategic Focus:

• Development of advanced fluoropolymer and silicone-based materials for superior chemical resistance.

• Strategic partnerships with major automotive OEMs for integrated battery sealing systems.

• Investments in R&D for next-generation solid-state battery sealing technologies.

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9️⃣ 2. Parker Hannifin Corporation

Headquarters: Cleveland, Ohio, USA
Key Offering: O-rings, gaskets, custom molded seals, and fluid sealing products

Parker Hannifin’s Engineered Materials Group provides critical sealing components for the energy storage industry. Their seals are designed to withstand the demanding environments of lithium-ion battery packs, including exposure to electrolytes and thermal cycling. The company’s global presence ensures supply chain reliability for manufacturers worldwide.

Innovation & Strategic Focus:

• Proprietary material formulations for enhanced thermal stability and compression set resistance.

• Comprehensive testing capabilities to validate seal performance under simulated battery operating conditions.

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Battery Pack Seals Market – View in Detailed Research Report

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8️⃣ 3. 3M Company

Headquarters: Saint Paul, Minnesota, USA
Key Offering: Adhesive tapes, foam tapes, and specialty sealing materials

3M is a diversified technology company whose industrial adhesives and tapes division plays a vital role in battery assembly. Their high-performance tapes and sealing solutions are used for bonding, cushioning, and environmental sealing within battery packs, offering an alternative to traditional gaskets. 3M’s solutions contribute to lightweighting and design simplification for EV batteries.

Innovation & Strategic Focus:

• Innovation in acrylic and silicone-based foam tapes that provide both adhesion and sealing.

• Focus on flame-retardant and thermally conductive materials to enhance battery safety.

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7️⃣ 4. DuPont de Nemours, Inc.

Headquarters: Wilmington, Delaware, USA
Key Offering: High-performance polymers including Viton® fluoroelastomers and Kalrez® perfluoroelastomers

DuPont provides advanced materials that are fundamental to manufacturing durable battery pack seals. Their specialty elastomers offer exceptional resistance to harsh chemicals, high temperatures, and aggressive environments, making them ideal for sealing battery housings and internal components against moisture and contaminants.

Innovation & Strategic Focus:

• Leading material science expertise in fluoroelastomers for extreme service conditions.

• Collaboration with seal fabricators to optimize material performance for specific battery chemistries.

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6️⃣ 5. Henkel AG & Co. KGaA

Headquarters: Düsseldorf, Germany
Key Offering: Liquid gasketing, silicones (LOCTITE® brand), and thermal interface materials

Henkel’s adhesives technologies business is a key enabler for modern battery pack design. Their portfolio includes form-in-place gaskets (FIPG) and cured-in-place gaskets (CIPG) that are robotically dispensed, allowing for complex sealing geometries and automated assembly lines. This is increasingly important for high-volume EV production.

Innovation & Strategic Focus:

• Development of low-outgassing silicones to prevent contamination inside sensitive battery cells.

• Integrated solutions that combine sealing with thermal management and structural bonding.

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5️⃣ 6. Canada Rubber Group

Headquarters: Toronto, Canada
Key Offering: Custom molded rubber seals, extruded profiles, and sponge gaskets

Canada Rubber Group (CRG) is a prominent North American manufacturer specializing in custom elastomeric components. They supply a wide range of seals, including silicone sponge and rubber sponge gaskets, which are essential for creating ingress protection (IP67/IP68) in battery enclosures for outdoor and automotive applications.

Innovation & Strategic Focus:

• Expertise in compression molding of EPDM and silicone sponge for consistent sealing performance.

• Focus on serving the booming North American EV and energy storage system markets.

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Battery Pack Seals Market – View in Detailed Research Report

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4️⃣ 7. Graco Inc.

Headquarters: Minneapolis, Minnesota, USA
Key Offering: Precision fluid dispensing equipment for form-in-place gasketing (FIPG)

While not a seal manufacturer itself, Graco is a critical player in the battery pack sealing ecosystem. The company’s advanced dispensing systems are used by battery and automotive OEMs to apply liquid sealants and gasketing materials with high precision and repeatability, which is crucial for automated, high-throughput manufacturing.

Innovation & Strategic Focus:

• Pioneering automated dispensing solutions that improve quality control and reduce material waste.

• Integration of vision systems and robotics for complex battery pack sealing paths.

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3️⃣ 8. Ascend Performance Materials

Headquarters: Houston, Texas, USA
Key Offering: High-performance polyamides (Nylon 66) and advanced engineered materials

Ascend Performance Materials produces high-performance plastics used in battery components, including housings and structural parts that interface with seals. The properties of their materials—such as dimensional stability, high heat resistance, and good chemical resistance—are critical for ensuring the long-term effectiveness of the sealing system under hood and in challenging environments.

Innovation & Strategic Focus:

• Development of halogen-free flame-retardant compounds for enhanced battery safety standards.

• Lightweighting solutions that contribute to increased EV range.

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2️⃣ 9. ThreeBond Holdings Co., Ltd.

Headquarters: Tokyo, Japan
Key Offering: Anaerobic adhesives, silicone sealants, and industrial bonding agents

ThreeBond is a leading Japanese chemical specialist with a strong presence in the electronics and automotive sectors. Their sealants and adhesives are widely used in battery assembly for sealing battery cases, bonding busbars, and potting electronic control units. Their products are known for reliability in the demanding environments of EVs.

Innovation & Strategic Focus:

• Specialization in thermally conductive sealants that aid in battery thermal management.

• Strong R&D focus on materials compatible with new, high-energy-density battery chemistries.

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1️⃣ 10. Hermetic Seal Technology

Headquarters: Lancaster, Pennsylvania, USA
Key Offering: Custom hermetic seals, glass-to-metal seals, and feedthroughs

Hermetic Seal Technology specializes in creating true hermetic (airtight) seals for the most demanding applications, including aerospace, military, and high-reliability automotive batteries. Their expertise is crucial for battery systems that require absolute protection from moisture and gases, such as those used in extreme environments or for long-duration storage.

Innovation & Strategic Focus:

• Expertise in glass-to-metal and ceramic-to-metal sealing technologies.

• Providing solutions for battery pack pressure equalization and safety venting systems.

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Battery Pack Seals Market – View in Detailed Research Report

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🔋 Outlook: The Future of Battery Pack Seals Is Smarter and More Integrated

The battery pack seals market is undergoing a rapid transformation. As battery technology advances toward higher energy densities and faster charging capabilities, the demands on sealing solutions intensify. The industry is shifting from passive sealing components to integrated, multi-functional systems that contribute to safety, thermal management, and structural integrity.

📈 Key Trends Shaping the Market:

• Adoption of Form-in-Place Gasketing (FIPG): Growing preference for dispensed liquid gaskets over cut or molded gaskets for design flexibility and automation compatibility.

• Material Innovation for Solid-State Batteries: R&D into new seal materials that can handle the different operating requirements and chemistries of forthcoming solid-state batteries.

• Stringent Safety and IP Standards: Increasing regulatory requirements for ingress protection (IP67/IP68) and flame retardancy are pushing seal performance to new levels.

• Supply Chain Localization: Battery and EV manufacturers are building regional supply chains, creating opportunities for local seal suppliers to partner with gigafactories.

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Battery Pack Seals Market – View in Detailed Research Report

The companies profiled above are not merely component suppliers; they are essential innovation partners enabling the safe and efficient electrification of transportation and energy systems worldwide.