MIL-DTL-15665J
specified in 3.4.8.1 or epoxy specified in 3.4.8.2. The enamel or epoxy
shall be applied so as to be uniform in color, free from bubbles, foreign
inclusions, cracking, crazing, or other defects which might affect
appearance. There shall be no overrunning of enamel or epoxy.
3.7.2.1 Colors. Enamel or epoxy colors shall match the shades of
the Institute of Heraldry color chips specified on the applicable
specification sheet (see 2.2.2).
3.7.2.2
Hard enameling. Hard enamel specified in 3.4.8.1 shall be
charged, fired and stoned level with the dikes.
No design elements shall
be removed during the stoning process. There shall be no noticeable burn
spots as a result of the firing. The hard enamel shall then be lapped,
felted, or wheel polished to produce a glass like finish. The finish
shall be adherent and free from bubbles, pits, foreign inclusions,
cracking, crazing, burned edges or darkened enamel.
3.7.2.3
Epoxy Resin. Epoxy resin specified in 3.4.8.2 shall be
applied and stoned level with the dikes. No design elements shall be
removed during the stoning process. The epoxy resin shall then be lapped,
felted, or wheel polished to produce a glass like finish. When tested as
specified in 4.5.6, the epoxy shall have a shore D hardness of not less
than 85.
3.7.2.4 Baking enamel. The face and edges of subdued insignia shall
be coated with enamel specified in 3.4.8.3. Prior to enameling, the
entire insignia shall be given a black chemical finish conforming to MIL-
F-495. When tested as specified in 4.5.8, the baking enamel shall not
flake or chip.
3.7.3 Cutting down. When necessary to remove nicks, scratches, pin
holes or other blemishes, the insignia shall not be cut down to the extent
that any details of the design are obliterated or reduced.
3.7.4 Lacquering. All insignia, except Marine Corps black enameled
insignia, gold plated insignia and nickel plated insignia, shall be
lacquered using lacquer specified in 3.4.9 as applicable (see 3.7 and
appropriate specification sheet). The dry lacquer film shall be
continuous, level, adherent and free from lint, dust or other foreign
matter. When tested as specified in 4.5.7, the tissue paper shall not
adhere to the clear lacquered surface.
3.8 Government loaned property. Hubs will be loaned by the
Government and shall be used to make the contractor's working dies
necessary for one contract or order (see 3.5 and 6.4).
3.9 Marking for identification. Except for the Air Force service
cap insignia, Air Force branch of service insignia, Marine Corps branch of
service insignia and female hat insignia, the contractor shall stamp his
trade mark or other identifying mark and the letters "GI" (GI for
government procurement only) legibly and inconspicuously on the back of
each item. When practical, the items will be stamped in the forced areas.
Marking shall be placed on the attaching bar for Army branch of service
insignia and on the washer or thumb nut for the Air Force service cap
insignia, Marine Corps branch of service insignia, and Marine Corps
service cap insignia. Female hat insignia and Air Force branch of service
insignia need not be marked.
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