MIL-PRF-24613A(SH), PERFORMANCE SPECIFICATION DECK COVERING MATERIALS, INTERIOR, COSMETIC POLYMERIC (3 NOV 2007)., This specification establishes the performance requirements for cosmetic polymeric deck covering materials to be applied either directly over primed or unprimed, clean steel and aluminum interior deck surfaces, or over deck covering underlay materials conforming to MIL-PRF-3135, that provide a wear resistant, low maintenance deck surface.