Custom Hermetic Solutions for Mission-Critical Applications

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In high-stakes industries like aerospace, defense, semiconductors, and medical devices, custom hermetic solutions are not optional—they’re essential. The integrity of sensitive electronic systems depends on the performance of components that can resist moisture, gas, and extreme environmental conditions. That’s where hermetic seals and hermetic connectors come in—providing the airtight barrier necessary to ensure uninterrupted functionality in the harshest settings.

Engineered for Precision: Custom Hermetic Feedthroughs and Headers

Not all applications are the same, and neither are their sealing requirements. Complete Hermetics specializes in manufacturing hermetic feedthrough assemblies and hermetic headers designed for exacting specifications. Using materials such as Kovar, stainless steel, titanium, and aluminum, they offer glass-to-metal and ceramic-to-metal seals that meet rigorous performance standards. These materials not only deliver superior corrosion resistance and thermal durability but also maintain electrical isolation—an absolute must in high-reliability sectors.

Hermetic Connectors for Harsh Environments

From hermetic connectors that meet MIL-DTL-38999 specs to custom configurations in circular or rectangular formats, Complete Hermetics ensures connectivity without compromise. These connectors support a wide range of shell sizes and pin layouts, enabling seamless integration into aerospace control systems, satellite payloads, and advanced industrial automation setups. Each connector is leak-tested to meet or exceed helium leak standards, safeguarding your mission-critical assets against contamination and failure.

The Role of Hermetic Packages in System Longevity

Beyond connectors and headers, hermetic packages provide a complete enclosure solution for sensitive electronics. These airtight casings shield circuits and sensors from environmental hazards, including temperature fluctuations, vibration, and corrosive chemicals. Complete Hermetics crafts these packages with the same high standards that govern all of their hermetic product lines, ensuring consistent protection and performance.

Partner with Complete Hermetics Today

Whether you’re upgrading a defense system, designing advanced medical instrumentation, or building next-gen aerospace controls, trust Complete Hermetics for unmatched quality and customization in hermetic seals, hermetic feedthrough, hermetic connectors, hermetic packages, and hermetic headers. Their engineering team collaborates with you from concept to completion to deliver solutions that excel under pressure—literally.

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Top-Rated Hermetic Seal Manufacturer for Reliable Electronic Protection

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Why Hermetic Products Matter in Modern Electronics

When it comes to ensuring long-term performance in mission-critical systems, hermetic products are essential. They shield sensitive electronics from moisture, gases, and contaminants that can compromise functionality. From aerospace and defense to telecom and medical devices, the need for reliable, airtight protection is more vital than ever.

Advanced Glass to Metal Seals & Ceramic to Metal Seals

The use of glass to metal seals and ceramic to metal seals enables robust protection in the harshest environments. These advanced sealing methods maintain electrical conductivity while ensuring a complete hermetic barrier. Whether in low-earth orbit satellites or implantable medical devices, these seals preserve performance under high pressure, radiation, and extreme temperature swings.

Customized Hermetic Connectors and Feedthroughs

Precision matters when it comes to interconnectivity. That’s why hermetic connectors and custom hermetic feedthroughs are indispensable in complex electronic systems. Designed to resist corrosion and maintain high electrical isolation, these components ensure seamless signal and power transfer without compromising environmental protection.

High-Performance Hermetic Headers and Power Packages

For high-voltage or high-temperature applications, hermetic headers and power packages built from materials like copper tungsten or molybdenum provide exceptional thermal dissipation. These packages support avionics, radar, and defense systems that operate in unforgiving conditions. Sealed with cutting-edge technologies, they maintain structural integrity and airtightness under stress.

Tailored Hermetic Enclosures for Telecom and Photonics

The growing demands of 5G networks, photonic devices, and optical systems require compact, high-frequency-compatible hermetic enclosures. Complete Hermetics delivers scalable, precision-engineered designs that maintain signal clarity and extend system life in high-speed communications, LIDAR, and imaging systems.

Choose Complete Hermetics: Your Trusted Hermetic Seal Manufacturer

At Complete Hermetics, we don’t just manufacture components—we engineer reliability. Whether you’re prototyping a custom module or scaling for production, we offer full-service solutions including glass to metal seals, custom hermetic feedthroughs, and hermetic connectors. Every part is rigorously tested to exceed industry standards for leak rate, insulation resistance, and thermal performance.

Explore our full line of hermetic products today. As a leading hermetic seal manufacturer, Complete Hermetics is ready to partner with you to deliver precision, durability, and peace of mind. Contact us now to begin your next high-reliability project.

Vacuum Viewports

What Makes Custom Hermetic Viewports Essential for High-Tech Applications?

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In advanced fields such as defense, space, medical endoscopy, and laser optics, the need for precision-engineered hermetic products is non-negotiable. One critical component that supports these high-stakes operations is the hermetically sealed viewport—also known as a vacuum window, hermetic window, or vacuum viewport. These terms are often used interchangeably across industries that demand airtight performance and enduring material integrity under extreme conditions.

Why Hermetic Viewports Are Crucial

Custom hermetic seals and feedthroughs are designed to preserve a contamination-free environment while ensuring high optical clarity and structural stability. In applications like infrared imaging or laser targeting systems, a hermetically sealed viewport acts as a critical interface that transmits light while blocking moisture, pressure variation, and other environmental threats. These advanced assemblies must comply with military and aerospace standards such as MIL-PRF-13830, ensuring rugged performance from -100°C to 450°C.

Precision Engineering with Advanced Materials

What sets these glass to metal seals and ceramic to metal seals apart is the high degree of customization available. At Complete Hermetics, each viewport is engineered using the ideal combination of window and flange materials. Common viewport substrates include sapphire, fused silica, magnesium fluoride, and zinc selenide, each selected for its optical and thermal properties. These are paired with flanges made of Kovar, stainless steel (CF, NW), titanium, or aluminum—depending on the application’s specific sealing and mechanical needs.

With leak rates tested below 1×10⁻⁹ atm·cc/sec He, these viewports are built for environments where absolute integrity is required. Whether for use in deep-space missions or in sterile surgical imaging systems, these custom hermetic seals and feedthroughs provide unmatched protection and performance.

Choose a Trusted Hermetic Seal Manufacturer

When precision, durability, and compliance are mission-critical, trust a proven hermetic seal manufacturer. Complete Hermetics has years of experience delivering custom solutions for some of the most demanding industries in the world.

Looking for a reliable partner for custom hermetic windows and feedthroughs?

Contact Complete Hermetics today  to learn how our vacuum viewports, glass to metal seals, and ceramic to metal seals can help you achieve flawless performance under pressure.

Hermetic Seals: Custom Solutions for Harsh Environments

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The need for absolute containment, insulation, and durability in high-performance sectors drives the demand for reliable hermetic seals.  These components are critical to maintaining system integrity under extreme conditions such as pressure fluctuations, high temperatures, and corrosive environments. As a trusted hermetic seal manufacturer, Complete Hermetics delivers precision-engineered solutions in both glass-to-metal seals and ceramic-to-metal seals, customized for your specific application.

Glass-to-Metal Hermetic Seals

Glass-to-metal hermetic seals are the industry standard for cost-effective, high-strength, and corrosion-resistant protection. These seals are used in a wide range of hermetic products including electrical feedthroughs, vacuum systems, and RF or microwave applications. Complete Hermetics fabricates both compression and matched seals:

  • Compression Seals: Ideal for high-pressure use, with thermal expansion properties engineered for strength.
  • Matched Seals: Used when the coefficient of thermal expansion is closely aligned between materials, often in microelectronic and medical applications.

Our glass-to-metal hermetic feedthroughs are plated for enhanced corrosion resistance and electrical performance, with finishes like gold, silver, and nickel.

Ceramic-to-Metal Hermetic Feedthroughs

Where higher temperatures or voltages are required, ceramic-to-metal seals outperform their glass counterparts. At Complete Hermetics, we design and manufacture custom ceramic-to-metal feedthroughs and hermetic seals for use in aerospace, medical devices, and industrial power systems.

We also offer ceramic-doped glass seals—an advanced option that supports extreme heat tolerance up to 600°C, providing a lower-cost alternative to traditional ceramic sealing methods while maintaining high reliability.

Your Partner in Custom Hermetic Solutions

Whether your project requires miniaturized electrical feedthroughs or rugged hermetic connectors, Complete Hermetics has the expertise and flexibility to deliver. We specialize in custom hermetic seals and feedthroughs using advanced materials and tight manufacturing tolerances.

Connect with Complete Hermetics Today

If you’re looking for industry-leading performance and reliability, trust Complete Hermetics, your dedicated hermetic seal manufacturer. We provide customized, high-quality hermetic products to meet any challenge. Get in touch today to discuss your specific needs for glass-to-metal or ceramic-to-metal hermetic seals and feedthroughs.

Vacuum Viewports

Vacuum Viewports: Clear Performance Under Pressure

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In high-performance systems where vacuum integrity and optical clarity are paramount, vacuum viewports—also known as vacuum windows, hermetic windows, and hermetically sealed viewports—are indispensable. These components serve as critical interfaces between atmospheric and vacuum environments while allowing precise optical transmission for lasers, infrared, and imaging technologies. At the forefront of innovation, Complete Hermetics delivers customized hermetic products designed for challenging operational demands in space, defense, medical, and industrial sectors.

Custom-Engineered Hermetic Viewports

Unlike standard optical windows, hermetic viewports must maintain vacuum integrity under extreme environmental conditions. Complete Hermetics specializes in custom hermetic seals and feedthroughs, offering advanced window assemblies that conform to MIL-PRF-13830 and MIL-O-13830 standards. Whether for deep-space missions or high-power laser applications, these glass to metal seals and ceramic to metal seals  deliver unmatched performance and reliability.

Each unit is built to meet client-specific requirements—size, shape, optical transmission, thermal endurance—across a broad range of material configurations. Typical window materials include Sapphire, Fused Silica, Glass, Magnesium Fluoride, and Zinc Selenide. For flange materials, options such as Stainless Steel (CF/NW), Kovar, Titanium, and Aluminum ensure mechanical compatibility and chemical resistance.

Uncompromising Performance Standards

Every viewport from Complete Hermetics undergoes rigorous testing to ensure zero compromise on sealing integrity. These custom hermetic seals maintain leak rates of less than 1×10⁻⁹ Atm·cc/sec He and withstand bake-out temperatures up to 450°C, functioning reliably from -100°C in cryogenic setups to extreme high-heat applications. Optical elements are precisely aligned and polished to meet demanding military optical specifications.

Contact Complete Hermetics for Hermetic Products

When precision, durability, and customizability are non-negotiable, trust Complete Hermetics—a leading hermetic seal manufacturer—to deliver tailored solutions that power the world’s most advanced systems. From defense-grade laser optics to medical endoscopy and aerospace sensors, our hermetic products set the benchmark in sealing technology.

Contact Complete Hermetics today  to explore how our vacuum viewports, glass to metal seals, and ceramic to metal seals can elevate your mission-critical designs. Let us help you seal your success—hermetically.

Hermetic Seals for High-Reliability Applications

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When it comes to ensuring absolute containment in harsh conditions, hermetic seals are indispensable. These highly specialized components are critical in a range of demanding industries—from aerospace and defense to medical and energy systems. As a leading hermetic seal manufacturer, Complete Hermetics delivers tailored solutions through its extensive line of hermetic products, including glass-to-metal seals, ceramic-to-metal seals, and advanced custom hermetic seals and feedthroughs.

Excellence in Glass-to-Metal Sealing

Glass-to-metal seals are widely used for their exceptional insulation properties, pressure resistance, and cost-efficiency. Using precisely engineered thermal expansion matching techniques, Complete Hermetics fabricates both compression and matched seals, capable of withstanding extreme temperatures, rapid pressure changes, and corrosive environments. These seals can achieve hermeticity rates up to 1 x 10⁻⁹ atm cc/sec He and insulation resistance exceeding 1 GΩ @ 100 VDC—ideal for electrical feedthroughs, RF, and microwave applications.

Complete Hermetics also offers a variety of plating options, including gold, silver, electroless nickel, and tin, to enhance corrosion resistance and bonding characteristics.

Advanced Ceramic-to-Metal Seals

For more rugged environments where glass-to-metal seals fall short, Complete Hermetics specializes in ceramic-to-metal seals. These are engineered for high-voltage, high-temperature, and high-pressure applications—such as vacuum chambers, aerospace modules, and diagnostic equipment. Though more labor-intensive, ceramic seals excel in endurance, offering extended reliability in temperatures up to 600°C when using our ceramic-doped glass innovation.

Customized Engineering and Sealing Innovation

Whether you need a hermetic solution for microelectronics, medical devices, or military systems, Complete Hermetics works directly with clients to design custom hermetic seals and feedthroughs that meet exact performance specifications. From titanium terminals for battery systems to high-reliability hermetic connectors, our engineering team delivers unmatched precision.

Engage Complete Hermetics for Your Hermetic Solutions

For expertly crafted hermetic products built to survive the toughest conditions, trust the expertise of Complete Hermetics. As a premier hermetic seal manufacturer, we’re ready to design the most reliable glass-to-metal and ceramic-to-metal seals on the market. Contact Complete Hermetics today to discuss your custom requirements and discover innovative solutions for your sealing challenges.

Top Hermetic Manufacturer Delivering Precision and Performance

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When it comes to reliable hermetic products, precision engineering and proven expertise are non-negotiable. As a top hermetic manufacturer, Complete Hermetics leads the industry with custom solutions for highly demanding environments. Specializing in glass-to-metal and ceramic-to-metal seals, the company develops advanced components tailored for aerospace, defense, medical devices, semiconductors, and energy systems.

Engineered for Performance in Extreme Environments

Whether you’re operating in vacuum, high-pressure, or high-temperature environments, Complete Hermetics offers components that ensure absolute sealing integrity. Their portfolio includes hermetic connectors, hermetic feedthroughs, and hermetic headers—all designed with precision to maintain signal integrity and eliminate the risk of leakage or contamination. These hermetic solutions are ideal for applications where failure is not an option.

Innovation in Hermetic Packaging and Integration

From hermetic packages to custom battery end seals and vacuum viewports, Complete Hermetics delivers advanced materials integration and performance. Their in-house expertise in brazing and soldering allows for tailored assemblies that meet rigorous industry and military specifications. Every component is engineered to maintain mechanical and electrical performance in the most demanding operating conditions.

Reach out to Complete Hermetics today to learn how our advanced solutions can improve the reliability and efficiency of your applications. We also offer expert customization in hermetic connectors, vacuum viewports, and hermetic headers designed to meet your precise requirements.

Leading Hermetic Manufacturer for Advanced Engineering Needs

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When reliability and precision are non-negotiable, industries across aerospace, defense, medical, and energy sectors turn to a trusted hermetic manufacturer. Hermetic technology plays a vital role in safeguarding sensitive electronic components from moisture, gas, and other environmental contaminants. This is where expertly engineered hermetic products become essential to mission-critical systems.

Comprehensive Hermetic Product Solutions

From hermetic seals and feedthroughs to hermetic connectors and hermetic packages, modern engineering requires versatile, high-performance solutions. These components are indispensable for protecting instrumentation in extreme conditions—whether in deep space or inside a life-saving medical device. Products such as battery end seals, hermetic headers, and vacuum viewports are built to withstand high pressure, temperature, and vacuum environments, ensuring operational integrity.

Precision Engineering of Hermetic Connectors and Headers

At the heart of many high-tech systems are hermetic connectors and hermetic headers, which maintain electrical integrity while preventing the ingress of gases or moisture. With custom design options and expert brazing and soldering techniques, these components are manufactured to exacting standards to meet unique application requirements.

Vacuum Viewports and Hermetic Feedthroughs for Specialized Applications

Vacuum viewports enable optical access in high-vacuum environments without sacrificing the integrity of the sealed system. Similarly, hermetic feedthroughs allow electrical or signal transmission while maintaining environmental barriers. These features are critical for scientific instruments, cleanroom systems, and advanced manufacturing processes.

Your Partner in Custom Hermetic Manufacturing

For over two decades, Complete Hermetics has provided engineered excellence as a premier hermetic manufacturer. As a wholly owned subsidiary of Aegis Technology Inc. in Santa Ana, CA, Complete Hermetics combines advanced prototyping with full-scale production capabilities. Whether you require hermetic products, hermetic packages, or custom hermetic seals and feedthroughs, our experienced team delivers precision-built components for your most demanding needs.

Contact Complete Hermetics today to discover how our innovative solutions can enhance the reliability and performance of your applications. We also specialize in hermetic connectors, vacuum viewports, and hermetic headers tailored to meet your exact specifications.

What Are Hermetic Seals Used For?

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Hermetic seals are critical components used in a wide range of industries, including aerospace, medical, and energy sectors. This article explores the diverse applications of hermetic seals and the expertise of Complete Hermetics in manufacturing these essential products.

Hermetic Products and Their Importance

Complete Hermetics is a leader in designing and manufacturing hermetic products, specializing in hermetic seals and feedthroughs. Their products ensure reliable protection against environmental conditions, making them indispensable in critical applications. These products include hermetic feedthroughs and glass to metal seals, designed to maintain integrity under extreme conditions.

Glass-To-Metal Seals

Complete Hermetics excels in producing glass-to-metal seals, which involve heating glass to a molten state and bonding it with metal. This process forms a robust seal that withstands drastic temperature changes and pressure variations, crucial for high-stress environments. Glass-to-metal seals are favored for their durability and cost-effectiveness, especially when compared to ceramic seals.

Ceramic-To-Metal Seals

Expanding their expertise, Complete Hermetics also offers ceramic to metal seals, known for their high-temperature resilience, reaching up to 600°C. These seals are perfect for applications requiring extreme thermal resistance, such as in high-performance aerospace components and advanced medical devices.

Types of Glass-To-Metal Seals

  1. Compression Seals: These are used when the coefficient of thermal expansion (CTE) of the metal exceeds that of the glass. The metal contracts around the glass as it cools, creating a high-pressure capable seal, often used in environments where pressure can reach up to 14,000 PSI.
  2. Matched Seals: These involve materials whose CTEs are closely matched, reducing stress in the glass and enhancing durability. Commonly used in electronic connectors, matched seals are preferred for their ability to handle thermal and mechanical shocks effectively.

Technological Advancements and Custom Solutions

Complete Hermetics doesn’t just follow industry standards; they set them. Their engineers custom-design seals and feedthroughs according to customer specifications, ensuring that each component meets the precise needs of their applications. Whether you need a solution for high-voltage applications or a custom configuration for medical equipment, Complete Hermetics has the capability and expertise to deliver superior hermetic products.

Connect with Complete Hermetics

If you’re in need of reliable hermetic seals or feedthroughs, look no further than Complete Hermetics. With a track record of excellence and innovation, they are equipped to handle the most challenging requirements. To find out more about their products and services or to discuss your specific needs, contact Complete Hermetics today. Engage with their team of experts to ensure your equipment remains protected and performs flawlessly in any environment.

Which Hermetic Seal Manufacturer is Best?

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When it comes to ensuring the reliability and durability of equipment in extreme conditions, hermetic seals are essential. These specialized components provide a complete and durable barrier against environmental variables such as moisture, dust, and other contaminants. Among the array of manufacturers, one stands out for their excellence in producing high-quality hermetic seals and feedthroughs.

Glass-to-Metal and Ceramic-to-Metal Seals

Complete Hermetics excels in the production of glass-to-metal seals and ceramic-to-metal seals. These two types of seals are crucial for applications that require robust and reliable sealing capabilities. Glass-to-metal seals are perfect for use in electronic components, as they offer superior insulation properties and durability under thermal stress. Similarly, ceramic-to-metal seals are favored in applications requiring high thermal stability and electrical insulation.

Hermetic Feedthroughs for Advanced Applications

In addition to traditional seals, Complete Hermetics also specializes in hermetically sealed feedthroughs. These are designed to ensure safe and secure passage for cables and wires through barrier walls without compromising the seal. Such feedthroughs are essential in medical, military, and aerospace applications, where integrity and reliability are paramount.

Quality and Reliability

Complete Hermetics stands out in the industry due to their commitment to quality and reliability. Each product undergoes rigorous testing to meet stringent quality standards. Their hermetic products ensure long-lasting protection against environmental challenges, making them the go-to choice for industries requiring the highest level of seal integrity.

Choose Complete Hermetics for Your Sealing Needs

For those in need of reliable hermetic seals and feedthroughs, look no further than Complete Hermetics. Whether you require glass-to-metal or ceramic-to-metal seals, their products are designed to offer unparalleled performance. Trust in their proven track record and let Complete Hermetics be the solution to your sealing challenges. Contact Complete Hermetics team today to learn more about how their products can be integrated into your projects. Remember, for the best hermetic sealing solutions, Complete Hermetics is your premier choice.