Hermetic Products

BG manufactures products for use in pressure vessels (high pressure and vacuum applications). BG’s hermetic products use “hard-seal” methods such a molten glass, epoxy, and crush metal sealing to achieve a permanent pressure-tight barrier. Most commonly these methods are used to achieve ceramic-to-metal seals.


  • Electric Feedthroughs (Chillers/Compressors)
  • Bushings (Electric Transformers)
  • Electrode Assemblies (Spark Plugs and Igniters)


  • Glass Sealing
  • Epoxy Sealing
  • Crush Metal Sealing
  • High-Temperature Construction
  • High-Voltage Operation

Product Examples

Contact BG today.

Quality. Delivery. Customer Satisfaction