When it comes to electronics operating in the extreme conditions of space, reliability is paramount. Spacecraft, satellites, and other aerospace equipment must endure some of the harshest environments imaginable, including vacuum, intense radiation, extreme temperature fluctuations, and prolonged exposure to solar and cosmic radiation.
One of the key challenges in designing electronics for space applications is mitigating outgassing—a phenomenon that can lead to contamination of sensitive components, degradation of optical systems, and potential electrical failures. To prevent such issues, NASA and other space agencies impose strict material selection criteria, particularly for coatings used on printed circuit assemblies (PCAs) and other electronic assemblies.
This is where HumiSeal 1B12 comes in. As a NASA-approved conformal coating with low outgassing properties, HumiSeal 1B12 has been rigorously tested and certified to meet the stringent requirements set by NASA’s ASTM E595 standard. This makes it a trusted choice for aerospace engineers looking to protect vital electronic components in space environments.
In this article, we will explore the significance of low outgassing materials in space applications, the features and benefits of HumiSeal 1B12, and its key applications in aerospace and satellite technology.
Understanding Outgassing in Space Applications
What is Outgassing?
Outgassing is the release of volatile organic compounds (VOCs) from materials when exposed to vacuum conditions. This is particularly problematic in space, where the absence of atmospheric pressure causes these volatiles to escape from surfaces more readily. Many conventional materials, such as adhesives, plastics, and coatings, can release small amounts of gases over time.
These gases, if not properly controlled, can lead to serious operational issues, such as:
To counter these risks, NASA and the European Space Agency (ESA) have developed strict guidelines for the use of materials in spacecraft and satellite systems.
NASA’s Low Outgassing Requirements (ASTM E595)
NASA’s ASTM E595 standard is one of the primary tests used to evaluate materials for low outgassing properties. The test measures two key values:
To be considered suitable for space applications, materials must have a TML of less than 1.0% and a CVCM of less than 0.1%. HumiSeal 1B12 meets these requirements, making it a highly reliable conformal coating for aerospace and space-related electronics.
HumiSeal 1B12: A Low Outgassing Conformal Coating
Overview of HumiSeal 1B12
HumiSeal 1B12 is a fast-drying, acrylic-based conformal coating designed to provide superior protection for PCAs and other electronic assemblies.
Unlike many conventional coatings which can release more significant amounts of volatile compounds, HumiSeal 1B12 has been specially formulated to exhibit extremely low outgassing properties—a crucial feature for applications in vacuum environments.
Key Features and Benefits of HumiSeal 1B12
HumiSeal 1B12 has been rigorously tested under ASTM E595 and meets the strict low outgassing requirements set by NASA. This ensures that it will not release volatile compounds that could contaminate critical spacecraft components.
Designed to shield electronics from moisture, dust, and chemical exposure, HumiSeal 1B12 enhances the durability and longevity of space-bound equipment.
HumiSeal 1B12 provides outstanding electrical insulation, preventing short circuits and ensuring the stability of PCBs in extreme environments.
Unlike some conformal coatings that require extensive curing times, HumiSeal 1B12 dries quickly and can be applied via spray, brush, or dip methods, making it highly adaptable for different manufacturing processes.
HumiSeal 1B12 contains a UV tracer, allowing engineers to quickly verify proper coverage under UV light. This is particularly useful in quality control processes, ensuring complete protection of coated components.
Applications of HumiSeal 1B12 in Space Technology
Modern satellites are packed with highly sensitive electronics, including communication systems, navigation equipment, and onboard computing units. HumiSeal 1B12’s low outgassing characteristics prevent contamination of critical components, ensuring the long-term reliability of spacecraft operating in vacuum conditions.
Space telescopes, spectrometers, and other scientific instruments rely on pristine optical clarity to gather accurate data. By reducing the risk of volatile residues accumulating on lenses and sensors, HumiSeal 1B12 helps maintain the precision and effectiveness of optical systems used in deep space exploration.
Flight computers, sensor arrays, and other avionics in spacecraft and launch vehicles must remain fully operational in extreme conditions. HumiSeal 1B12’s protective coating prevents moisture ingress, corrosion, and electrical degradation, making it an essential component in ensuring mission success.
Robotic arms, landers, and autonomous spacecraft often feature complex electronic circuits that require protection. The low outgassing properties of HumiSeal 1B12 prevent unwanted chemical deposits from interfering with actuators, servos, and other precision components.
Why HumiSeal 1B12 is the Preferred Choice for Space Applications
Aerospace engineers and electronics manufacturers working on space missions, satellite technology, and high-reliability electronics need materials that offer superior performance without compromise. HumiSeal 1B12 delivers on this promise, combining:
As space exploration continues to advance, the demand for high-reliability materials will only increase. HumiSeal 1B12 stands out as a trusted solution, enabling engineers to build spacecraft and satellite systems that can withstand the extreme conditions of space while ensuring long-term mission success.
Conclusion
The challenges of space require cutting-edge materials that can withstand vacuum environments, protect sensitive electronics, and ensure long-term reliability. HumiSeal 1B12, with its NASA-approved low outgassing properties, provides an ideal solution for aerospace applications, ensuring that critical electronic components remain fully functional in the harshest environments.
For aerospace engineers, satellite manufacturers, and space technology developers, HumiSeal 1B12 represents a proven, reliable, and effective choice—helping push the boundaries of space exploration while protecting the vital electronics that make it all possible.