The Invisible Hero in Hermetic Sealing:

Kovar Sealing Glass
Featured Product

Sealing Glass Powder

Expertly crafted for optimal flow and efficiency, our sealing glass powder, provided in form of granulates, offer unmatched bonding strength, customizable colors, and seamless integration into various industries. Ideal for high-precision manufacturing, they're the go-to solution for reliable, durable seals.
Glass Specifications & Applications

Glass Specifications & Applications

Applications Code Glass Composition Density Sintering Temperature TEC/10-6(30-300℃) Color
Sealing for Kovar SK016 SiO2-Na2O-K2O 2.254  g/cm3 970~980  Tm/℃ 5.0±0.5 Green, Blue, White, Brown

The Application Areas of Products

 
  • Glass-to-metal-sealed Connectors
    Oscillator Base
  • Glass-to-metal-sealed TO Packages
    Rectangular Connector
  • Smart Watch Casebacks
    Circular Connector
Key Consideration:
Sealing Glass Characteristics
 
 

Optimal Sealing Temperatures

Achieve perfect bonds at temperatures that preserve integrity.

Harmonized Thermal Expansion

Our seals match your materials, ensuring durability against thermal stress.

Eco-Friendly, Lead-Free Glass

Safe for both people and the planet, our seals meet stringent environmental standards.

Customizable Colors

Tailor your seals to fit any design aesthetic, enhancing product appeal with a spectrum of color options.

Understanding the Basics: Sealing Glass Definition

Sealing glass is a type of technical glass used to create airtight seals, typically in industrial or scientific applications. This kind of specialty glass is designed to bond with metals and ceramics when heated, forming a tight seal that is both mechanically strong and hermetically sealed (air- and watertight). The key property of sealing glass is its thermal expansion characteristics, which are closely matched to those of the material it is intended to bond with. This compatibility is crucial to prevent stress and potential breakage due to differences in expansion rates when the joined materials are subjected to temperature changes.
Glass to Metal Seal Design Guide and Process
01. What is a Glass to Metal Seal?

A glass to metal seal is a critical component used in various industries to create a hermetic seal between glass and metal parts. This technology ensures airtight sealing, which is essential in environments where preventing gas or liquid leaks is crucial.

02. How are Glass to Metal Seals Manufactured?

Glass to metal seal manufacturers employ specialized processes involving the careful selection of metal and glass materials, ensuring compatibility and thermal expansion rates. The process typically involves melting the glass into a metal component, creating a bond that seals upon cooling.

03. What are the Common Applications of Glass to Metal Seals?

Glass to metal seals are widely used in electronics for hermetic connectors, in aerospace for pressure-tight windows, and in medical devices for implantable components. Their ability to maintain integrity under extreme conditions makes them ideal for these applications.

04. What is Sealing Glass and How is it Used?

Sealing glass is a specific type of glass formulated to bond with metals. It's used in creating glass to metal seals due to its thermal expansion properties, which closely match those of the metal, ensuring a durable and robust seal.

05. What are the Benefits of Hermetic Sealing in Glass to Metal Seals?

Hermetic sealing in glass to metal seals offers numerous benefits, including protection against moisture and contaminants, preservation of vacuum or pressure conditions, and enhanced durability and reliability in harsh environments.

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