Specialty Silicone Products (SSP) makes conductive EMI RFI O-rings from nickel-graphite silicone SSP502-65. SSP extrudes the cords, makes the tooling, and uses a bonding method that reduces the risk of EMI leakage and eliminates the “hard spot” found in other conductive gaskets.
SSP502-65 is a 65-durometer silicone that’s filled with nickel-coated graphite particles. This silicone elastomer is very electrically conductive and combines reliable environmental sealing with superior shielding against electromagnetic interference (EMI) and radio frequency interference (RFI). A third-party shielding report is available for this EMI RFI silicone.