MIL-PRF-8516F, MILITARY SPECIFICATION SEALING COMPOUND, SYNTHETIC RUBBER, ELECTRIC CONNECTORS AND ELECTRIC SYSTEMS, CHEMICALLY CURED (31 JUL 1997) (SUPERSEDING MIL-S-8516F)., This specification covers a two-component, chemically cured synthetic rubber compound for insulating, sealing, reinforcing, and corrosion protection of electric connectors, wiring, and other electric apparatus. This specification has provisions for shelf-life extension (see 3.2.4).