Contact
724-537-7791
© GBC Advanced Materials 2025
Site by WeAreLion
724-537-7791

Engineered Advanced
Glass Solutions

Pressed and Drawn to Perform.

We shape specialty glass into forms that hold together critical systems in aerospace, electronics, and advanced assemblies. Whether pressed or drawn, every GBC component is built in our in-house tooling and modification shop, with tightly controlled materials, and application-specific precision.

The only limit is your design.

Pressed Glass / Glass Preforms

From the beginning, GBC’s core capabilities involved around the manufacturing of complex preforms for customers who demand high-precision parts at scale.

Characteristics

Using filled glass compositions, including alumina-loaded, Hydralox blends, coining glasses, and Fusite glasses, we press donuts, rings, tubes, and discs in colors that serve both function and form.

With thousands of custom tools already in house – and the capability to build more – we support intricate geometries with tight tolerances, fast turnarounds, and consistent results across production runs.

Specs

Using filled glass compositions, including alumina-loaded, Hydralox blends, coining glasses, and Fusite glasses, we press donuts, rings, tubes, and discs in colors that serve both function and form.

With thousands of custom tools already in house – and the capability to build more – we support intricate geometries with tight tolerances, fast turnarounds, and consistent results across production runs.

Drawn / Extruded Glass Tubing

For applications where wall thickness, surface finish, and material purity can’t be compromised, GBC offers drawn glass tubing using dedicated glass-specific kilns. We go the extra mile to maintain the integrity of each run and go further to meet what your manufacturing processes demand with precision and excellence.

Specs
  • Materials: Corning 7070 (green) | Fusite K (green, black) | Fusite T (blue)
  • Over three decades of extruded glass manufacturing experience
  • No tooling required; OD and ID controlled by the speed and flow rate during the drawing process
  • Tight OD/ID tolerances for electronic and structural use
  • Standard and custom sizes, with every diameter available between 32k and 125k
  • Ideal for hermetic sealing, electrical feedthroughs, high-voltage systems, electrical packs, and flat packs
Download Catalog Specs

Shaped to meet
Your Needs

For customers who need precision from the first unit to the last, GBC is the partner that gets it right. Our engineers control the process from forming to geometry to batch scheduling and strict quality control, so what you get is consistent, clean, and ready to perform.

Our Edge
  • Fully integrated manufacturer handling every step from powders and forming to machining and sintering – all performed in-house.
  • Full traceability and repeatability
  • Capable of multi-hole geometries and complex press profiles
  • Glasses chosen and formulated for function: electrical, thermal, structural
  • Lead times as short as two weeks, with stocked material and flexible tooling options
Pressed. Drawn. Delivered.
Request a Quote