--- title: Solving BESS Enclosure Sealing Challenges | Marian, Inc. description: See how Marian, Rogers, and 3M combine silicone foam, adhesive technology, and precision die cutting to develop custom BESS enclosure gaskets. image: https://blog.marianinc.com/hubfs/Blog-Synopsis-Photo-BESS%20v2.jpg --- - [Facebook](https://www.facebook.com/marianincorporated) - [LinkedIn](http://www.linkedin.com/company/marian-inc.?trk=company_name) - [Twitter](http://twitter.com/Marianinc) - [Youtube](http://www.youtube.com/user/marianincsolutions) 1-800-773-0062 [Mandarin / 中文](https://www.marianinc.com.cn) [![Marian, Inc.](https://blog.marianinc.com/hs-fs/hubfs/Marian_November2019/Images/Marian%2c%20Inc..png?width=340&height=156&name=Marian%2c%20Inc..png "Marian, Inc.")](https://marianinc.com/) - [Capabilities](https://marianinc.com/capabilities/) - [Prototyping](https://marianinc.com/capabilities/prototyping/) - [Die Cutting](https://marianinc.com/capabilities/die-cutting/) - [Slitting](https://marianinc.com/capabilities/slitting/) - 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Engineers must also consider how the gasket will attach to the enclosure, fit within the available sealing area, and be manufactured for consistent assembly. In this *In the Field* elective course from [The Enclosure Institute™](https://marianinc.com/enclosure-institute/), representatives from Marian, Rogers Corporation, and 3M™ explore these considerations through a BESS enclosure sealing application. The discussion follows the development of a custom gasket construction, from selecting a silicone foam and compatible adhesive to precision die cutting and finished-part delivery. *\*Disclaimer: the [Enclosure Institute™](https://marianinc.com/enclosure-institute/) is a free educational resource created by Marian, Inc. and Rogers Corporation to help engineers navigate enclosure sealing with expert guidance.* ---   ## ![Representative Battery Energy Storage System](https://blog.marianinc.com/hs-fs/hubfs/iStock-2251695310.jpg?width=200&height=300&name=iStock-2251695310.jpg)Developing a BESS Enclosure Sealing Solution Outdoor BESS enclosures are exposed to a wide variety of conditions and must be designed to withstand and operate reliably in those situations. Developing an effective sealing construction requires evaluating the gasket material, adhesive, and manufacturing requirements together, and working with a converter helps simplify processes even further by bringing suppliers directly into the material selection conversation. A customer reached out to us with a BESS application that was experiencing leaking issues. They needed a long-term solution that: 1\. Protected the enclosure from moisture, dust, and other environmental conditions and extremes. 2\. Allowed for periodic access for servicing but permanently bonds to the enclosure.   ### The Custom BESS Sealing Solution ![Custom gasket](https://blog.marianinc.com/hs-fs/hubfs/Full-Lamination.jpg?width=325&height=245&name=Full-Lamination.jpg)Rogers identified BISCO® HT-800 silicone foam as a suitable gasket material because it performs well in outdoor applications that will experience the elements, has low stress relaxation, excellent memory, and can withstand swings in temperature, UV, ozone, and more. With silicone as the chosen sealing material, not just any adhesive would provide a secure bond because of silicone's low surface energy. 3M contributed 3M™ Double Coated Tape 9731 to the material stack up to support adhesive attachment to both the enclosure and the silicone seal. This material offers versatility because of its differential construction, meaning the final tape is made using two different adhesives - acrylic on one side and silicone on the other. This is key because low surface energy materials such as silicone most easily adhere to other low surface energy materials, making this differential double coated tape an ideal material for the application   Combining BISCO® HT-800 and 3M™ Double Coated Tape 9731 materials provided the foundation for a custom sealing component, but selecting compatible materials is only the beginning.   ## Converting BESS Sealing Materials into Custom Gaskets As a Preferred Converter for Rogers and 3M, Marian helps engineers transform selected raw materials into finished components that meet their enclosure design and assembly requirements. For this BESS application, Marian demonstrates how 3M™ Double Coated Tape 9731 can be laminated to Rogers BISCO® HT-800 silicone foam and precision die cut to the required gasket geometry. Factors such as dimensional tolerances, material thickness, adhesive placement, and alignment within the enclosure all play a role in the finished component's design. Marian also considers how the parts will be delivered and installed. Depending on the customer's assembly process, finished components can be supplied kiss-cut on rolls, in sheets, or individually packaged. By considering these requirements early, Marian helps OEMs simplify material sourcing, converting, and assembly while developing custom gaskets suited to their applications.   ![Part Delivery Options](https://blog.marianinc.com/hs-fs/hubfs/Part-Delivery-Options.png?width=600&height=254&name=Part-Delivery-Options.png) ## In the Field: BESS Enclosure Sealing In this Enclosure Institute™ elective, representatives from Marian, Rogers, and 3M discuss their respective roles in developing a BESS enclosure sealing solution. Watch the discussion to learn how material suppliers and converters can collaborate to address enclosure sealing challenges.     ## Additional BESS Enclosure Design Resources For more information about enclosure sealing materials and design considerations, explore these articles from Rogers Corporation: - [Designing a BESS Enclosure Seal: Material, Adhesive and Converting Considerations](https://www.rogerscorp.com/blog/2026/designing-a-bess-enclosure-seal-material-adhesive-and-converting-considerations) - [6 BESS Enclosure Sealing Considerations for Outdoor Battery Energy Storage Systems](https://www.rogerscorp.com/blog/2026/6-bess-enclosure-sealing-considerations-for-outdoor-battery-energy-storage-systems) ## Explore the BESS OEM Design Guide Looking for additional guidance on battery energy storage system design? The Enclosure Institute™ BESS elective includes a downloadable **BESS OEM Design Guide**, providing additional educational resources for engineers working on battery energy storage applications. **[Enroll in The Enclosure Institute™](https://marianinc.com/enclosure-institute/) to watch the elective course and access the BESS OEM Design Guide.**   **[![Enroll for free](https://no-cache.hubspot.com/cta/default/330082/interactive-189007007606.png)](https://blog.marianinc.com/hs/cta/wi/redirect?encryptedPayload=AVxigLJ67iWQAgYQC8ttWGOyQszo6vtl5I8w4T3nWGoxgyax%2B6ySueFdypzQm0zN8M1LPCiaPO%2FLOyVOLWV63%2Bdoxea0Cz%2FrGUf1RXj9EYQDFB0m0pe6qwpE83gPcCtoRDzcYzkYw4OoSsak8FvlFqXSXwb7tKFyBT7pUvS5sIQEzs9PMMYeyotI1A%2BsVKQlDFUSuZqc0Xo6fN2j4xBazKT%2FcA%3D%3D&webInteractiveContentId=189007007606&portalId=330082)**   For engineers developing custom enclosure gaskets, Marian can help evaluate material options, adhesive constructions, die-cutting requirements, and finished-part configurations to support their specific applications. [![Enclosure Institute™ logo](https://blog.marianinc.com/hs-fs/hubfs/enclosure-institute-logo-Final-TM-2048x2048.jpg?width=187&height=187&name=enclosure-institute-logo-Final-TM-2048x2048.jpg)](https://marianinc.com/enclosure-institute/) ---   Working on an enclosure application and not sure where to start or currently knee-deep in an active project and not sure what's next? [Contact us](https://info.marianinc.com/contact-us?_gl=1*zpa13x*_gcl_au*MTAwMTcwNzQ4MS4xNzQ5MDYwMzY3) and we'll put you in touch with a Sales Engineer in your area. Our technical teams can walk you through all the important considerations to make sure your application is ready to go to market without issues.   ---   Topics: [Foams](https://blog.marianinc.com/blog/topic/foams), [Manufacturing](https://blog.marianinc.com/blog/topic/manufacturing), [BISCO Silicone](https://blog.marianinc.com/blog/topic/bisco-silicone), [Silicone](https://blog.marianinc.com/blog/topic/silicone), [Battery](https://blog.marianinc.com/blog/topic/battery), [Material selection](https://blog.marianinc.com/blog/topic/material-selection), [3M](https://blog.marianinc.com/blog/topic/3m), [Automated Assembly](https://blog.marianinc.com/blog/topic/automated-assembly), [Enclosure Institute](https://blog.marianinc.com/blog/topic/enclosure-institute), [Enclosures](https://blog.marianinc.com/blog/topic/enclosures), [Rogers Corporation](https://blog.marianinc.com/blog/topic/rogers-corporation), [BESS](https://blog.marianinc.com/blog/topic/bess) This is a search field with an auto-suggest feature attached. - There are no suggestions because the search field is empty. ### Subscribe to Blog Updates ## Featured posts ### Posts by Topic - [3M (14)](https://blog.marianinc.com/blog/topic/3m) - [Acrylic Foam Tape (7)](https://blog.marianinc.com/blog/topic/acrylic-foam-tape) - [Application Story (11)](https://blog.marianinc.com/blog/topic/application-story) - [Assembly (15)](https://blog.marianinc.com/blog/topic/assembly) - [Automated Assembly (10)](https://blog.marianinc.com/blog/topic/automated-assembly) - [Automotive (3)](https://blog.marianinc.com/blog/topic/automotive) - [Avery Dennison (1)](https://blog.marianinc.com/blog/topic/avery-dennison) - [Battery (8)](https://blog.marianinc.com/blog/topic/battery) - [BESS (1)](https://blog.marianinc.com/blog/topic/bess) - [BISCO Silicone (29)](https://blog.marianinc.com/blog/topic/bisco-silicone) - [CFD (8)](https://blog.marianinc.com/blog/topic/cfd) - [Cleanroom (1)](https://blog.marianinc.com/blog/topic/cleanroom) - [Compression Set (5)](https://blog.marianinc.com/blog/topic/compression-set) - 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