Best Hermetic Product Manufacturer for Custom Solutions

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Why Manufacturer Expertise Matters

Choosing the best hermetic product manufacturer is critical for systems that operate in extreme environments. Hermetic components must meet exacting standards for leak integrity, electrical performance, and mechanical durability. Poor manufacturing quality can result in system failure, safety risks, and costly downtime.

Comprehensive Hermetic Product Portfolio

Complete Hermetics designs and manufactures a full range of custom hermetic products, including:

Custom Engineering and Prototyping

Unlike standard suppliers, Complete Hermetics focuses on custom hermetic solutions. The engineering team works closely with customers to develop prototypes, validate designs, and transition seamlessly into production. This collaborative approach minimizes risk and ensures optimal performance.

Advanced Manufacturing Capabilities

From glass-to-metal and ceramic-to-metal sealing to brazing and soldering, Complete Hermetics maintains strict process control and quality standards. The company supports both low-volume specialty projects and large-scale production programs.

Industries Served Worldwide

Hermetic products from Complete Hermetics support aerospace, defense, medical, semiconductor, energy, and industrial markets, where failure is not an option. Customers worldwide rely on the company’s expertise and consistency.

Partner with Complete Hermetics

As a trusted hermetic product manufacturer, Complete Hermetics delivers precision, reliability, and flexibility from design through production. Our engineering team collaborates closely with customers to develop custom sealing solutions that meet demanding electrical, mechanical, and environmental requirements. Using advanced materials, proven glass-to-metal and ceramic-to-metal technologies, and strict quality control, we ensure consistent performance in mission-critical, high-reliability applications across aerospace, medical, energy, and industrial markets.

📞 Phone: 714-265-1238
📧 Email: info@completehermetics.com
🔗 Contact Form

Choose Complete Hermetics for precision sealing solutions built to perform in critical environments.

MIL-SPEC Hermetic Connectors

Hermetic Seal Connectors for Reliable Electrical Interconnects

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Understanding Hermetic Seal Connectors

Hermetic seal connectors are engineered to provide dependable electrical connections while maintaining an air-tight and gas-tight seal across pressure boundaries. Their primary function is to prevent gases, moisture, and contaminants from entering sealed systems where environmental exposure could otherwise lead to corrosion, signal degradation, or mechanical failure. In hermetic systems, these connectors serve as a critical interface between internal electronics and external environments, ensuring long-term performance and protection.

Hermetic Sealing Across Pressure Boundaries

In hermetic interconnect applications, hermetic seal connectors prevent gas transmission through connector interfaces, even when penetrating pressurized bulkheads or sealed equipment housings. This capability is essential in systems exposed to pressure differentials, vibration, and temperature variation. Proper hermetic sealing preserves stable internal conditions and protects sensitive electronics from external contamination, making these connectors indispensable in high-reliability environments.

Design Options and Sealing Technologies

Complete Hermetics designs and manufactures hermetic seal connectors using advanced glass-to-metal and ceramic-to-metal sealing technologies. These connectors are available in both circular and rectangular configurations, with customizable contact counts, pin sizes, shell styles, and mounting options. Materials such as stainless steel, Kovar, titanium, and aluminum are carefully selected to meet mechanical strength, corrosion resistance, and environmental performance requirements.

Electrical Performance and Long-Term Reliability

In addition to acting as pressure barriers, hermetic seal connectors must maintain consistent electrical performance over extended service lifetimes. Stable contact resistance, insulation integrity, and precise mechanical alignment are essential to avoid intermittent faults or signal loss. Hermetic sealing minimizes oxidation and moisture ingress, reducing maintenance needs and significantly extending connector service life in demanding applications.

Industries and Applications

Hermetic seal connectors are widely used in aerospace systems, medical devices, offshore drilling equipment, industrial automation, energy infrastructure, and defense applications, where exposure to harsh environments is unavoidable and failure is not an option.

Why Choose Complete Hermetics

Complete Hermetics designs and manufactures hermetic seal connectors, hermetically sealed connectors, hermetic feedthroughs, and hermetic headers for demanding applications. In addition to connector solutions, the company offers vacuum feedthroughs, battery end seals, TO headers, and custom hermetic assemblies tailored to specific requirements. With deep engineering expertise and flexible manufacturing, Complete Hermetics delivers interconnect solutions built for reliability in extreme environments.

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High-Pressure Hermetic Seals for Extreme Environments

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What Are High-Pressure Hermetic Seals?

High-pressure hermetic seals are designed to maintain a completely air-tight and gas-tight barrier in systems exposed to extreme pressure differentials. Hermeticity is defined as the state of being air or gas tight, and in interconnect applications, it refers to sealing technology that prevents gases from passing through pressure boundaries via connectors or feedthroughs. A classic hermetic application is a receptacle feedthrough penetrating a pressurized bulkhead or sealed equipment housing.

Why Pressure Integrity Matters

In high-pressure systems, even microscopic leaks can result in pressure loss, corrosion, electrical failure, or safety risks. Hermetic seals prevent gas migration while preserving electrical insulation and mechanical stability. This makes them essential in environments where reliability and safety are non-negotiable.

Custom Hermetic Sealing Solutions

Complete Hermetics specializes in custom hermetic products, including hermetically sealed connectors, hermetic headers, hermetic packages, hermetic seals, and hermetic feedthroughs. Every seal is engineered to meet specific pressure, temperature, and environmental requirements. Advanced modeling and prototyping capabilities allow precise optimization before production.

From Prototypes to Production

Whether customers require small-scale manufacturing for prototypes or mass production for thousands of components, Complete Hermetics supports the full lifecycle. The company works closely with customers to ensure exact specifications are met, regardless of application complexity.

Serving Global Industries

Located in Santa Ana, California, Complete Hermetics serves customers worldwide in aerospace, defense, energy, medical, offshore drilling, and industrial systems. High-pressure hermetic seals are widely used in pressurized vessels, downhole drilling tools, aerospace systems, and military equipment.

Contact Complete Hermetics Today

Complete Hermetics guarantees customer satisfaction through close collaboration, engineering expertise, and rigorous quality standards. Each hermetic seal is designed to perform reliably under extreme pressure and environmental stress.

Precision Hermetic Technology and Custom Hermetic Solutions

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Custom Hermetic Manufacturing Expertise

Precision hermetic technology requires deep materials knowledge, process control, and engineering collaboration. Complete Hermetics is a custom manufacturer of glass-to-metal seals, ceramic-to-metal seals, hermetic feedthroughs, and hermetic seals, supporting demanding applications across multiple industries.

Comprehensive Hermetic Product Portfolio

Complete Hermetics designs and manufactures a complete range of hermetic solutions, including:

Industries That Depend on Hermetic Precision

These products are vital to defense systems, medical technology, semiconductor equipment, energy infrastructure, and aerospace platforms, where failure is not an option.

From Concept to Production Scalability

Precision hermetic technology must support both early-stage development and long-term manufacturing scalability. Complete Hermetics works closely with customers during the concept phase to evaluate materials, sealing methods, and performance requirements before transitioning designs into repeatable production processes. This approach minimizes redesign risk and ensures consistency across production runs. Whether supporting low-volume prototypes, qualification builds, or full-scale manufacturing, precision process control enables reliable hermetic performance while meeting cost, schedule, and quality objectives for complex engineering programs.

Engineering, Prototyping & Manufacturing

Founded in 2002 and located in Santa Ana, California, Complete Hermetics is a wholly owned subsidiary of Aegis Technology Inc. The company offers extensive engineering support, rapid prototyping, and scalable manufacturing capabilities for both low-volume and production-scale programs.

Why Choose Complete Hermetics

Complete Hermetics delivers precision hermetic technology, including hermetic seals, feedthroughs, connectors, vacuum viewports, and hermetically sealed packages engineered for extreme environments. In addition, the company provides battery end seals, hermetic headers, power packages, and custom hermetic assemblies tailored to customer specifications. With advanced manufacturing and hands-on engineering collaboration, Complete Hermetics supports critical systems worldwide.

📞 Phone: 714-265-1238
📧 Email: info@completehermetics.com
🔗 Contact Form

Trust Complete Hermetics to deliver solutions that seal your success.

MIL-SPEC Hermetic Connectors

Hermetically Sealed Connectors for Aerospace and Medical Use

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What Are Hermetically Sealed Connectors?

Hermetically sealed connectors provide reliable electrical connections while preventing oxygen, moisture, bacteria, and contaminants from entering sealed systems. These connectors are designed for applications where conventional connectors fail due to corrosion, pressure changes, vibration, or temperature extremes.

A One-Stop Hermetic Connector Manufacturer

Complete Hermetics is a one-stop source for glass-sealed hermetic connectors and ceramic-sealed hermetic connectors, offering both electrically hermetic and vacuum-sealed connector solutions. Custom designs are available for virtually any mounting requirement, filling gaps left by conventional connector manufacturers.

MIL-Spec & Custom Connector Solutions

For military and aerospace applications, Complete Hermetics manufactures MIL-Spec hermetic connectors, including MIL-DTL-38999, MIL-C-5015, MIL-C-26482, and MIL-C-26500, as well as custom legacy replacements. Both circular and rectangular connectors are available with configurable contact counts, shell styles, and sealing technologies.

Lightweight Hermetic Connector Options

Weight matters. Titanium hermetic connectors provide exceptional strength-to-weight ratio and high-temperature resistance, while aluminum hermetic connectors offer ultra-lightweight solutions for low-temperature aerospace and military applications.

Environmental Protection and System Safety

Beyond electrical connectivity, hermetically sealed connectors play a vital role in protecting entire systems from environmental exposure. Moisture ingress, oxygen intrusion, and microbial contamination can quickly degrade sensitive electronics or compromise sterile environments in medical applications. Hermetic connectors create a sealed barrier that preserves internal conditions regardless of external pressure, humidity, or chemical exposure. This level of protection improves overall system safety, reduces maintenance requirements, and supports regulatory compliance in aerospace, medical, and defense industries where reliability and cleanliness standards are exceptionally strict.

Industries Served

Hermetically sealed connectors are used in submarines, offshore oil rigs, vacuum chambers, laboratory equipment, medical devices, and commercial and military aircraft, where reliability is critical.

Contact Complete Hermetics

Complete Hermetics manufactures hermetically sealed connectors, glass-to-metal seals, ceramic-to-metal seals, hermetic feedthroughs, hermetic headers, and vacuum-rated assemblies for extreme environments. The company also supports customers with custom connector designs, battery end seals, and power packages engineered to exact specifications. With flexible manufacturing and deep technical expertise, Complete Hermetics delivers hermetic connector solutions you can trust.

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Glass-to-Metal Seals for Precision Hermetic Technology

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How Glass-to-Metal Seals Work

Glass-to-metal seals are created by heating glass to a molten state and bonding it directly to metal under carefully controlled conditions. As the materials cool, the glass forms a strong, hermetic bond with the metal, creating an airtight and electrically insulating seal. This process allows electrical conductors to pass through metal housings without permitting moisture, gas, or contaminants to enter the sealed environment. Because of their proven reliability, glass-to-metal seals remain one of the most widely used hermetic sealing technologies across multiple industries.

Performance Advantages of Glass Sealing

One of the key advantages of glass-to-metal seals is their ability to maintain hermetic integrity under pressure changes, humidity exposure, and moderate temperature extremes. Glass provides excellent dielectric strength, corrosion resistance, and chemical stability, making it suitable for long-term use in harsh environments. Compared to epoxy or mechanical sealing methods, glass-to-metal seals offer significantly longer service life and more predictable performance over time.

Material Compatibility and Stability

Successful glass-to-metal sealing depends on matching the coefficient of thermal expansion (CTE) between the glass and metal components. Materials such as Kovar, Alloy 52, stainless steel, and copper-based alloys are commonly used to achieve this balance. When properly engineered, these seals tolerate thermal cycling and mechanical shock without cracking or leakage, making them suitable for both static and dynamic applications.

Manufacturing Precision and Repeatability

Glass-to-metal sealing requires precise control over glass composition, firing temperature, and cooling rates. This level of control ensures consistent quality and repeatability across production runs. As a result, glass-to-metal seals are ideal for both prototype development and high-volume manufacturing, allowing manufacturers to scale production without sacrificing reliability.

Common Applications

Glass-to-metal seals are widely used in glass-to-metal sealed lids, battery end seals, capacitor end seals, sensors, medical implants, and industrial electronics. They are also commonly found in automotive systems, pressure sensors, and energy storage devices where cost-effective hermetic performance is required.

 

Contact Complete Hermetics

Complete Hermetics is a custom manufacturer of hermetic sealing solutions, specializing in glass-to-metal seals, ceramic-to-metal seals, hermetic connectors, hermetic feedthroughs, hermetic headers, TO headers, vacuum feedthroughs, and battery end seals. The company designs and produces hermetically sealed components and custom hermetic assemblies for aerospace, defense, medical, energy, and telecom applications, delivering reliable performance in extreme environments from prototype development through full-scale production, backed by deep engineering expertise.

MIL-SPEC Hermetic Connectors

Hermetic Connectors for Aerospace, Medical, and Defense Systems

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Why Hermetic Connectors Matter

Hermetic connectors provide sealed electrical interconnections while maintaining reliable electrical performance under extreme environmental conditions. They prevent moisture, gas, and particulate intrusion that can cause corrosion, insulation failure, or signal loss. These connectors are essential in aerospace, medical, defense, automotive, and industrial systems exposed to vibration, pressure changes, and temperature extremes.

MIL-Spec and Material Options

Many applications require MIL-Spec hermetic connectors, including circle connectors, and rectangular connectors. Materials such as titanium, stainless steel, Kovar, and aluminum are selected for strength, corrosion resistance, and lightweight performance. Titanium hermetic connectors are especially valuable in aerospace and medical systems where weight reduction and biocompatibility are critical.

Design Flexibility and Electrical Performance

Hermetic connectors can be configured for solder-in or laser-weld installation, high-density pin layouts, EMI shielding, and high-voltage or high-frequency operation. Glass-to-metal and ceramic-to-metal sealing technologies ensure long-term hermeticity even under mechanical shock and repeated thermal cycling.

System Integration and Longevity

Beyond environmental sealing, hermetic connectors support long-term system reliability by maintaining stable contact resistance and alignment. They reduce intermittent faults, minimize maintenance risk, and extend service life in systems where repair access is limited or impossible.

Mission-Critical Applications

Hermetic connectors are widely used in satellites, avionics, implantable medical devices, unmanned systems, and defense electronics.

Contact Complete Hermetics

Complete Hermetics is a custom manufacturer of hermetic connectors, glass-to-metal seals, ceramic-to-metal seals,  and hermetically sealed packages for demanding applications. The company also provides custom connector designs, battery end seals, TO headers,  and vacuum feedthrough solutions to meet specialized requirements. With precision engineering and flexible production, Complete Hermetics delivers hermetic interconnect solutions customers can trust.

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Hermetic Seals for High-Pressure and Harsh Environments

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What Are Hermetic Seals?

Hermetic seals are engineered to create a completely airtight barrier that prevents moisture, gas, and contaminants from entering sensitive electronic or mechanical systems. These seals are essential in applications where even microscopic leakage can cause performance degradation, safety issues, or catastrophic system failure. Industries such as aerospace, defense, medical devices, energy, and offshore drilling rely on hermetic sealing to protect mission-critical components operating in extreme conditions.

High-Pressure and Corrosion Resistance

Unlike conventional gaskets or epoxy-based sealing methods, hermetic seals prevent gas transmission through pressure boundaries. Glass-to-metal seals and ceramic-to-metal seals are the most widely used hermetic technologies because they offer excellent electrical insulation, corrosion resistance, and mechanical strength. These seals are specifically designed to withstand high pressure, vibration, thermal cycling, and chemically aggressive environments.

Materials and Sealing Technologies

Hermetic seals are manufactured using materials such as Kovar, stainless steel, Alloy 52, titanium, and aluminum, selected for controlled thermal expansion and long-term structural stability. Glass and ceramic sealing processes are precisely controlled to prevent cracking during temperature changes. These technologies ensure predictable performance across wide temperature ranges and long service lifetimes.

Lifecycle Reliability and Compliance

Hermetic seals also play a critical role in safety, regulatory compliance, and lifecycle cost reduction. Poor sealing can lead to corrosion, insulation breakdown, or electrical failure. Hermetic seals are commonly validated using helium leak detection, thermal shock testing, and pressure cycling to ensure long-term durability in regulated industries.

Applications Across Industries

Hermetic seals are used in medical implants, aerospace avionics, lithium battery assemblies, semiconductor housings, downhole drilling tools, and high-vacuum systems. They are also increasingly used in automotive and electric vehicle electronics, where moisture resistance and long operational life are essential.

Contact Complete Hermetics

Complete Hermetics is a custom manufacturer of glass-to-metal seals, ceramic-to-metal seals, hermetic connectors, hermetic feedthroughs, hermetic headers, and hermetically sealed packages engineered for extreme environments. In addition to precision sealing solutions, the company offers vacuum feedthroughs, battery end seals, TO headers,  and power packages for aerospace, defense, medical, energy, and telecom applications. From prototype development through full-scale production, Complete Hermetics partners closely with customers to deliver precision-engineered hermetic solutions with unmatched reliability.

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Medical Hermetic Seals for Life-Critical Electronic Devices

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Why Hermetic Seals Are Essential

Medical hermetic seals play a critical role in ensuring the safety, reliability, and biocompatibility of implantable and diagnostic electronics. When devices operate inside the human body or are exposed to sterilization processes, they must withstand moisture, bodily fluids, chemical exposure, and extreme thermal variations. Even the smallest leak can cause internal corrosion, signal failure, or biological contamination. As modern medical devices become smaller yet more capable, the demand for advanced hermetic sealing technologies grows significantly.

Glass-to-Metal & Ceramic-to-Metal Sealing Technologies

Complete Hermetics designs medical-grade seals using glass-to-metal (GTM) and ceramic-to-metal (CTM) sealing methods. Glass seals provide cost-effective, high-strength bonding between metal housings and conductive pins, while ceramic seals are ideal for high-voltage or long-term implants due to their exceptional dielectric strength. Using materials such as titanium, stainless steel, and high-purity alumina ceramics, these seals are engineered to perform reliably in demanding biological environments.

Regulatory-Ready Testing & Biological Safety

Medical hermetic seals must meet FDA, ISO 14708, IEC 60601, and biocompatibility standards. Complete Hermetics performs rigorous testing—including helium leak detection, sterilization simulation, thermal shock, electrical insulation analysis, and X-ray inspection—to ensure every seal meets life-critical reliability requirements. Traceability, cleanliness, and manufacturing consistency are maintained at every step.

Applications in Modern Healthcare

Medical hermetic seals enable secure operation in:

  • Pacemakers & implantable cardioverter defibrillators (ICDs)
  • Neurostimulation & pain-management implants
  • Implantable batteries & power modules
  • Surgical navigation tools
  • Diagnostic imaging equipment
  • Long-term biosensor implants

Contact Complete Hermetics

For precision-engineered medical hermetic seals that support life-critical technology, trust the expertise of Complete Hermetics.

Hermetic Seals and Feedthroughs for Extreme Environments

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Why Hermetic Seals Are Essential

Hermetic seals are critical to protecting sensitive electronics from gas, liquid, and pressure infiltration. Whether in aerospace flight control systems, industrial power assemblies, or medical equipment, the success of an electronic device often depends on the integrity of its hermetic sealing. When systems operate under high stress or environmental fluctuation, a small leak can lead to catastrophic failure.

Complete Hermetics Expertise

Complete Hermetics is a trusted hermetic seal manufacturer with decades of engineering experience. The company designs and fabricates both glass-to-metal and ceramic-to-metal feedthroughs, each tailored to meet precise mechanical, thermal, and electrical requirements. Every product undergoes helium leak detection, electrical insulation testing, and dimensional verification to ensure it exceeds global reliability standards. Their multidisciplinary team collaborates closely with clients to optimize performance, durability, and manufacturability for each application. With a commitment to innovation, Complete Hermetics continues to advance sealing technologies that meet the evolving needs of aerospace, medical, and defense industries.

Glass-to-Metal Seals and Applications

A glass-to-metal seal is formed when molten glass bonds tightly to metal under carefully controlled thermal expansion. The resulting structure creates a gas-tight joint ideal for devices exposed to temperature swings or humidity changes. Common applications include aviation sensors, industrial pumps, high-voltage connectors, and sealed relays. Compression and matched seals are both available depending on the intended use environment.

Ceramic-to-Metal Alternatives

When systems demand higher operating voltages or extreme temperature resistance, ceramic-to-metal seals provide superior dielectric strength and corrosion resistance. Complete Hermetics engineers these seals for medical scanners, power distribution modules, and vacuum enclosures used in aerospace and research.

Customization and Finishing Options

Materials such as stainless steel, Inconel, Kovar, and titanium are combined with custom plating—gold, nickel, or silver—for enhanced conductivity and solderability. Each configuration is designed in collaboration with the customer to meet functional, thermal, and geometric requirements.

Contact Complete Hermetics

For precision-engineered hermetic seals and feedthroughs that perform in the harshest conditions, trust Complete Hermetics —your global partner in dependable sealing solutions.

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