MIL-STD-130N
TABLE III. Consideration criteria in selection of marking methods
(This table is given only as a guide. These suggested methods may not meet the needs of your application.)
Protective finish |
Surface roughness in inches (metric) |
Marking method |
Remarks |
|
|
No protective finish or a |
125 microinches (3.2 microns) or coarser 125 to 63 microinches (3.2 to 1.6 microns) All surfaces 125 microinches (3.2 microns) or coarser 125 to 63 microinches (3.2 to 1.6 microns) 63 microinches (1.6 microns) or finer All surfaces All surfaces 125 microinches (3.2 microns) or coarser 125 to 63 microinches (3.2 to 1.6 microns) 63 microinches (1.6 microns) or finer All surfaces Matte texture I Velvet matte |
Cast, forged, molded, thermal spray, Metal fusion, epoxy Metal stamp Molded, engraved metal stamp, dot peen, vibro peen Laser markable inks or paints and epoxies, thermal spray & metal fusion Photo Anodizing Electro-chemical etch (electrolytic process) Cast, forged, molded, metal stamped, thermal spray, Metal fusion, epoxy Laser engraved Molded, engraved metal, stamp, dot peen, vibro peen, acid etch, blast (grit) , thermal spray, Metal fusion, epoxy. Laser engrave Decalcomania, laser discoloration, laser (paint pigmentation), laser (bonding), epoxy, thermal spray, Metal fusion, Photo Anodizing Laser engrave Rubber stamp, pre-encoded stencil, ink jet Laser markable inks or paints and epoxies, Thermal spray, Metal fusion. Rubber stamp, epoxy & pre- encoded stencil, decalcomania, ink jet, Thermal spray, pre-encoded inserts, Metal fusion, Photo Anodizing Rubber stamp, pre-encoded stencil, Ink Jet, marking machine, decalcomania, hand brush or laser markable inks or paints & epoxies with clear coat, Thermal spray, Metal fusion, Photo Anodizing. Digitally printed subsurface |
Specify "raised" or "depressed" only when necessary; used on non-machined surfaces. On machined surfaces Specify "depressed", when marking a functional surface. Additive marking. Cover with matte finish clear coat for additional protection Specify depth of depression or, if raised, the amount of build-up. Specify "depressed" when marking a functional surface, plus mark prior to application of finish. As above, may be marked after anodizing or plating. As above, plus mark prior to application of finish On ground or sanded surfaces after anodize or plating. Apply over protective coating before oiling, cover with clear lacquer or equivalent Specify depth of penetration, especially on plated surfaces. Apply over protective finish before oiling. Use ink in accordance with A-A-208, type I, or an equivalent type, cover with clear lacquer on nonporous surfaces. Additive marking. Cover with matte finish clear coat for additional protection As above. Painted, machined surfaces. Painted, ground, or sanded surfaces Do not penetrate dry film thickness. For marking of printed wiring boards and assemblies, epoxy base fungus resistant, non-conducting ink in accordance with A- A-56032 may be used |
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coating of light |
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oil applied after marking. Phosphate, dry film, anodize, or plating Paint Epoxy or urethane coating Polycarbonate IPolyester with hardcoating |
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