About InSealing

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Metalized Ceramics and Brazing Solutions

InSealing is a custom manufacturer of glass-to-metal, ceramic-to-metal, hermetic seals and feedthroughs. Our team has a wide range of knowledge to design and develop the hermetic connectors, hermetic packages, hermetic headers, vacuum viewports, hermetic seals and hermetic feedthroughs to fit your specifications.

Ceramic Metallization

InSealing metallizes precision ceramic and sapphire components for military, medical, and aerospace applications. Our metallized parts are used in critical assemblies brazed by our in-house team or by other brazing suppliers and OEMs

Brazed Assembly

Our experienced team of engineers will select the appropriate brazing fixtures, joint design, and process best-suited to your application

CNC Machining

CNC machining combines repeatability and efficiency with precision to produce high-quality parts from a wide range of metals and plastics.


Years of Experience


Happy Clients



Finished Projects


Our Awards

What Are Our Customers Saying ?

Every customer is valuable to us. Here are the reviews of some of our customers who chose us.

We have purchased about 8 different custom parts from INSEALING. You have always provided a high quality product that met our specifications and expectations. It is a pleasure to work with such an excellent company.

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Jane Doe

We have had very good results with your feedthroughs. They work better than the same parts that were made by our old vendor in Japan.

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The new delivery is just passed the Quality check. We are surprised that these parts are very good in terms of dimensions.

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