Every Stage
Your trusted partner in ceramic-to-metal seals
Ceramic Seals Limited is a leading UK manufacturer specialising in ceramic-to-metal seals, ceramic feedthroughs and advanced technical sealing solutions. We’re trusted by clients operating in ultra-high vacuum, high-pressure and extreme-temperature environments.
As an independent company with a reputation for technical excellence, we design and manufacture hermetic ceramic seals, electrical feedthroughs and metallized alumina components. From one-off prototypes to repeat production, our ceramic-to-metal seal assemblies are engineered for reliability, leak-tight performance and long-term stability.
Bespoke Ceramic-to-Metal Seals & Custom Feedthrough Assemblies
Many applications require more than standard catalogue components. We specialise in the design and manufacture of bespoke ceramic-to-metal seals, custom ceramic feedthroughs, and advanced technical sealing assemblies engineered to meet demanding electrical, vacuum, pressure and thermal requirements.
Working directly with your engineering team, we support projects from initial concept and prototype development through to qualification and repeat production. Customisation can include:
- Materials and geometry
- Conductor configuration
- Flange / housing design
- Ceramic grade and metallization
- Braze alloy selection
- Plating / Protective finishes
Whether you require a single prototype or an ongoing production programme, we deliver reliable, hermetic ceramic sealing solutions built around your application.
That’s why we’re AS9100 and ISO 9001 certified
We operate under AS9100:D and ISO 9001:2015 accredited quality systems, ensuring:
- Full traceability
- Process control
- Repeatability
These certifications reflect our commitment to delivering high-reliability components that meet the stringent demands of aerospace, defence, and other critical industries.
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