Hermetic Sealing

Qnnect offers both glass-to-metal sealing and ceramic-to-metal sealing capabilities to our customers, as we recognize that depending on your application’s thermal requirements, weight and material requirements, you need the option of choosing the best sealing technology that creates the optimal hermetic seal for a specific application.

Our Sealing Technologies


Our ceramic-to-metal seals incorporate the patented Kryoflex® polycrystalline ceramic and are an alternative to conventional compression glass and metallized alumina ceramics. Kryoflex is a unique material that relieves stress within itself and eliminates one the most common causes of hermetic failure – cracked glass. Kryoflex hermetic seals demonstrate excellent electrical performance, while withstanding mechanical and thermal stresses and it will directly seal into materials such as stainless steel, titanium, and aluminum.

Glass-to-Metal Seals

Qnnect offers glass-to-metal pin sealing directly into most any iron/nickel alloy connector or housing. Our glass-to-metal sealing capabilities, available at multiple facilities, allow for matched sealing, compression sealing, and high reliability sealing using special oxidation and requiring higher processing temperatures. Our hermetic glass-to-metal seals meet or exceed MIL-STD-883 and JEDEC Spec 9A.

Our Commitment to Quality

Our commitment to quality helps ensure our customers are successful with their customers. And when we say “quality,” we don’t just mean producing the highest quality products, because that goes without saying; for Qnnect, exceptional quality extends to our processes, the way in which we interact with our customers, our employees and the world. Quality is how Qnnect does business.

Our Products

We offer innovative solutions and produce state-of-the-art products for Defense & Aerospace, Energy, Industrial,Medical and Optical Networking industries.

Our Services

We’re not just a manufacturer; we offer our customers value added services to help them succeed when in-house capacity is not an option.