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tesa® ACXplus Box Seal for battery enclosure

As EV battery enclosure designs continue to evolve, manufacturers need sealing solutions that balance performance, manufacturability, and serviceability. On this page you can find some explainer videos about our tesa® ACXplus Box Seal for battery enclosure.

All videos

Introduction

In this introduction to the tesa® ACXplus Box Seal series, discover how this acrylic foam sealing solution supports

  1. efficient assembly,
  2. reliable sealing performance, and
  3. easier service throughout the battery enclosure lifecycle.

How the material works

Discover how tesa® ACXplus Box Seal combines reliabile sealing performance with manufacturing flexibility. Engineered with a compressible acrylic foam core, the material conforms to surface variations, accommodates production tolerances, and helps compensate for thermal expansion between substrates. 

tesa® ACXplus Box Seal enables precise positioning and adjustment during assembly, supporting efficient manufacturing processes while maintaining a durable, long-lasting seal. The solution is also designed with serviceability in mind, allowing battery enclosures to be opened for inspection, repair, or rework  without unnecessary complexity. 

Learn how the material is engineered to support durable battery enclosure sealing while helping manufacturers improve sealing reliability, simplify assembly and support easier maintenance throughout the product lifecycle.  

Aged sample

Battery enclosure seals must perform throughout the life of the vehicle - not just on day one.

Watch how tesa® ACXplus Box Seal performs after aging, demonstrating its ability to maintain sealing performance while supporting serviceability when battery enclosures need to be reopened for inspection, repair, or end-of-life processing.

Hand application

Proper application is essential to achieving consistent sealing performance.

In this demonstration, see how tesa® ACXplus Box Seal can be applied quickly and accurately by hand, helping create a uniform seal while supporting efficient manufacturing and simplified rework when needed.

Competitive seals & common challenges

What makes  tesa® ACXplus Box Seal different from traditional sealing solutions?

Not all battery enclosure sealing methods offer the same balance of efficiency and serviceability.

This video explores common challenges associated with traditional sealing approaches and highlights key considerations when selecting a sealing solution for EV battery enclosures. Learn how design, manufacturing, and service requirements all play an important role in long-term performance.

Additional applications

Battery enclosure sealing requirements continue to evolve as various designs become more advanced.

Explore additional applications where tesa® ACXplus Box Seal can help support reliable sealing performance while providing flexibility for manufacturing and future service. From initial assembly through end-of-life, discover how one sealing solution can address multiple design needs.

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01tesa® ACXplus 76730 Box Seal

Thickness: 2.8 mm

Gaps: 0.9 mm - 2.0 mm

Target application:

  • Suitable for smaller boxes
  • Sealing of ECUs
  • (Battery box sealing)

 

tesa black adhesive tape with blue protective backing partially peeled, isolated on white background (This text has been generated by AI)

02tesa® ACXplus 76754 Box Seal

Thickness: 5.4 mm

Gaps: 1.7 mm - 4.1 mm

Target application:

  • Battery box sealing

 

 

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Talk to an expert

Get in touch now

Looking for the right battery enclosure sealing solution? Contact our experts for application advice, product recommendations, and support in selecting the best tesa® ACXplus seal for your specific requirements.

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Last updated on Oct 13, 2026