Satellite communications (SATCOM) and space exploration need materials that can withstand extreme temperatures, vacuum conditions, high radiation, and mechanical stress. Whether it’s for rockets, satellites, space stations, or rovers, there are rubber materials that can meet demanding requirements. Still, it’s critical to choose the right compound for your specific application.
Elasto Proxy is an ISO 9001:2015 and AS9100 D certified company that distributes rubber materials and fabricates finished products like seals, gaskets, and insulation. Contact us to discuss your SATCOM or space exploration application and keep reading to learn more about rubber for space.
Rubber in Space and Time
During NASA’s Apollo program, specialized silicone seals in the lunar module enabled astronauts to land on the Moon. Less than two decades later, the Space Shuttle Challenger exploded after FKM O-rings failed. FKM is a high-performance rubber, but it becomes brittle and inelastic when exposed to frigid temperatures like the ones on Challenger’s launch pad that night.
Today, the market for space exploration is projected to have a compound annual growth rate (CAGR) of 16.21% through 2032, when the industry will reach $1879B in value. The market is even larger when geostationary satellites like the ones used by SpaceX are included. If you’re designing parts for programs like this, material properties are a mission-critical consideration.
Material Properties and Compound Selection
Many rubber products for satellite communications and space exploration require materials with some or all of these properties.
- Extreme temperature resistance
- Vacuum stability
- Radiation resistance
- Chemical resistance
- Mechanical durability
- Flame resistance
- EMI shielding and ESD protection
Elasto Proxy can help you to select the right rubber for your application. Contact us.
Extreme Temperature Resistance
The coldest temperature ever recorded on Earth was -89.2°C (-128.6F). The hottest was 56.7°C (134°F). In deep space, temperatures of -270°C (-518°F) are expected. For spacecraft that return to Earth, temperatures can reach 1600°C (2912°) during re-entry. Clearly, commodity rubber isn’t an option here.
Vacuum Stability
The vacuum pressure of space causes some compounds to release volatile components. In turn, these volatiles can cloud camera lenses and interfere with other instruments. Depending on your application, a rubber that meets ASTM E595 low outgassing requirements may be required.
Radiation Resistance
Solar and cosmic radiation can degrade rubber and result in a loss of mechanical properties and elasticity. That’s part of the reason why the Perseverance Rover on Mars contains so few elastomeric parts. For X-rays and gamma rays, specialized compounds that contain lead are available. Scientists are also developing new compounds for Martian missions.
Chemical Resistance
The FKM rubber in Challenger’s launch rockets was chosen because of its excellent resistance to fuel. Yet designers must balance chemical resistance against other requirements, such as temperature. They also need to account for exposure to specific types of propellants and lubricants.
Mechanical Durability
Rubber products for SATCOM and space exploration are subjected to significant mechanical stress. They must withstand shock, vibration, and impact loads without cracking or deteriorating. In some cases, A-A-59588 3B aerospace silicones with flex-fatigue resistance may be needed.
Flame Resistance
Fires in space are especially dangerous because they consume precious oxygen and threaten electronic controls. Silicone sponge and foam materials with UL 94 V0 flame ratings are used in some space applications, and these elastomers also provide environmental sealing.
EMI Shielding and ESD Protection
The electronics in satellites and space vehicles contain sensitive electronics that need protection against electromagnetic interference (EMI). Electrostatic discharge (ESD) can also damage electronics. Electrically conductive EMI gaskets and cushioning pads are potential solutions.
Rubber Products for Satellites and Space Exploration
Elasto Proxy works with a network of trusted suppliers and can source specialized rubber materials.
- If you need distribution services, we can buy what you need, store materials in our warehouses, and send you shipments on-demand or according to your production schedule.
- If you need manufacturing services, we can supply you with low-to-medium volumes of high-quality parts, including prototypes.
Ready to learn more? Talk to our team and get the value you deserve.
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