Elasto Proxy fabricates EMI gaskets for space vehicles, rockets, satellites, and military and civilian spacecraft. We use water jet cutting to convert electrically conductive silicones made of low outgassing, flame retardant, MIL-DL-83528 QPL certified, or fuel and solvent resistant materials. Custom molded EMI shielding gaskets for space applications are also available.
EMI shielding from Elasto Proxy combines reliable environmental sealing with proven protection against electromagnetic interference (EMI). To speed product assembly, we can provide you with EMI shielding gaskets that have an electrically conductive pressure-sensitive adhesive (PSA) backing.
Keep reading to lean more and ask Elasto Proxy for EMI gaskets in low-to-medium volumes.
Low Outgassing EMI Gaskets for Space Flight
Low outgassing EMI gaskets are made of shielding silicones that meet ASTM E595 requirements for low levels of outgassing, a problem that can cloud optics, sensors, and electronics in the vacuum of space. ASTM E595 is based on a test method that was developed by NASA. It determines the volatile content of material samples placed in a heated vacuum chamber.
As the table below shows, Elasto Proxy fabricates low outgassing elastomers that provide alternatives or offsets to Parker Chomerics CHO-SEAL® and W.L. Gore GORE-Shield® products. We also fabricate an EMI shielding silicone with a TR-10 low-temperature capability of -70°C (-94°F). TR-10 is the temperature at which a vulcanizate retracts 10%.
Low Outgassing EMI Shielding Materials
Elasto Proxy Material | Short Description | Offsets | Notes |
EMI2368-65 | 65-durometer | CHO-SEAL 1285 | MIL-DTL-83528, Type B |
EMI2529 | 68-durometer | CHO-SEAL 6502 | Corrosion Resistant |
EMI502-40-V0 | 40-durometer | GORE GS2100 | Flame Retardant |
EMI502-60-V0 | 65-durometer | GORE GS5200 | Flame Retardant |
EMI502-55LT | 55-durometer | Low Temperature |
Note: If you need non-conductive gaskets, ask us about a 50-durometer, low outgassing elastomer with extreme low-temperature resistance.
MIL-DTL-83528 EMI Gaskets for Space Flight
MIL-DTL-83528 EMI gaskets are made of electrically conductive elastomers that meet the lettered requirements of MIL-DTL-83528, a U.S. military detail specification that is sometimes written as MIL-G-83528 or M83528. Elasto Proxy’s MIL-DTL-83528 Type B material, EMI2368-65, also meets ASTM E595 requirements for low levels of outgassing.
Elasto Proxy fabricates MIL-G-83528 EMI gaskets from materials that belong to the M83528 Qualified Product List (QPL). This approved product list is maintained by the Defense Logistics Agency (DLA), part of the U.S. Department of Defense (DoD). As the table below shows, our M83528 gasket materials are alternatives or offsets to Parker Chomerics CHO-SEAL® products.
MIL-DTL-83528 EMI Shielding Materials
MIL-DTL-83528 | Elasto Proxy Material | Key Specifications | Compare to |
Type A | EMI2569-65 | 65-durometer | CHO-SEAL 1215 |
Type B | EMI2368-65 | 65-durometer | CHO-SEAL 1285 |
Type C | EMI2573-75 | 65-duromer | CHO-SEAL 1287 |
Type D | EMI2486-70 | 75-durometer | CHO-SEAL 1298 |
Type D | EMI2571-85 | 70-durometer | CHO-SEAL 1212 |
Flame Retardant EMI Gaskets for Space Flight
Flame retardant EMI gaskets are made of shielding silicones with UL 94V0 flame ratings. They also meet ASTM E595 outgassing requirements. These materials contain cost-effective nickel-graphite particles and can be used in place of GORE GS2100 and GORE GS5200. W.L. GORE discontinued these two spaceflight materials in 2020.
Flame Rated EMI Shielding Materials
Flame Rating | Elasto Proxy Material | Short Description | Compare to | |
UL 94 V0 | EMI502-40-V0 | 40-durometer | GORE GS2100 | |
UL 94 V0 | EMI502-60-V0 | 60-durometer | GORE GS5200 | |
Fuel and Solvent Resistant EMI Gaskets for Space Flight
Fuel and solvent resistant EMI gaskets use fluorosilicone as the base elastomer and contain silver-aluminum or nickel-graphite particles. These materials provide enhanced resistance to aggressive fluids and offer excellent low-temperature resistance. Two of the materials that we fabricate meet MIL-DTL-83528 requirements and provide alternatives to Parker Chomerics CHO-SEAL® products.
Fuel and Solvent Resistant EMI Gasket Materials
Elasto Proxy Material | Short Description | CHO-SEAL Offset | MIL-DTL-83528 |
EMI2486-70 | 70-durometer | CHO-SEAL 1287 | Type D |
EMI502F-50 | 50-durometer | ||
EMI502F-60 | 60-durometer | ||
EMI502F-80 | 80-durometer | ||
EMI550-45 | 45-durometer | CHO-SEAL 1287 | |
EMI550-70 Passivated | 70-durometer | Type D |
Find EMI Gaskets for Spaceflight
Do you need EMI gaskets for spaceflight applications like satellites, rockets, or other types of spacecraft? Whether it’s for military or civilian applications, Elasto Proxy can provide the EMI shielding gaskets that you need, and in lower minimum order quantities (MOQs) than you’ll find elsewhere.
