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Rubber & Silicone Seals
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Rubber Molding
O-Rings - Gaskets - Molded Rubber Parts - EMI Shielding - GORE Vents - Sponge Cellular Foams - Seals - Adhesives & Sealants 

Our products are customized to your needs. 

Our team of applications engineers are ready to

help you with your design. 

Sealing Devices is a manufacturer/fabricator of gaskets, O-rings, EMI shielding, adhesives, seals, custom molded rubber, and sponge parts.


We also do compression, transfer and injection molding on-site and have in-house tooling.

We provide assistance designing in materials on the front end of projects.

Let our Applications Engineers share years of product knowledge and experience in suggesting materials and product solutions to fit your specific application requirements.

With recommendations for gasketing, venting, shielding, thermal management and sealing projects, engineers provide innovative solutions for your applications through Sealing Devices large portfolio of parts, fabricated materials, and value-added services. 


Design assistance to ruggedized Commercial off the Shelf Components (COTS) for challenging Military, Aerospace, Electronics and Industrial Applications. 


Failure analysis to address customer applications experiencing sealing, EMI/RFI, and thermal management issues, and then recommending alternative solutions to the problem.


Assistance with seal selection for existing special gaskets and seal interfaces.

Sealing devices provides products across all different industries including Industrial, Communications & IT, Military, Aerospace and Fluid Power. 

Sometimes you need the extra insight that only an engineer with extensive sealing and shielding experience can suggest.

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Sealing Devices
Lancaster , PA

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