I,...,...,-1-0September1993SUPERSEDINGMIL-A-8625E25Aprll1988NOTMEASUREMENTSENSITIVEMIL-A-8625FIMILITARYSPECIFICATION———-.—..-ANOC)ICCOATINGSFORALUMINUMANDALUMINUMALLOYS“Thisspec!ffcatlonIsapprovedforusebyallDepartmentsandAgenciesoftheDepartmentofDefense.1.SCOPE1.1Scope.ThisspecificationcoverstherequirementsforSIXtypesandtwoclassesofelectrolyticallyformedanodiccoatingsonaluminumandaluminumalloysfornon-architecturalapplications(see6.1).1.2Classification.TheanodiccoatingTypesandClassescoveredbythisspecificationareasspecifiedherein(see6.2and6.21):1.2.1TypesTypeI-Chromicacidanodizing,conventionalcoatingsproducedfrom-chromicacidbath(see3.4.1)TypeIBChromicacidanodizing,lowvoltageprocess,22~2V,(see3.4.1)TypeIC-Non-chromicacidanodizing,foruseasanon-chromate-alternativeforTypeIand16coatings(see3.4.1and6.1.2)TypeIISulfuricacidanodizing,conventionalcoatingsproducedfromsulfurlcacidbath(see3.4.2)Type116-Thinsulfuricacidanodizing,foruseasanon-chromateTypeIII-alternativeforTypeIand16coatings(see3.4.2and6.1.2)HardAnod\\cCoatings(see3.4.3)1.2.2Classes.:Class1-Non-dyed(see3.5.)Class2-Dyed(see3.6.)Benefic~alcomments(recommendations,additions,deletions)andanypertinentdatawhichmaybeofuseInImprovingthisdocumentshouldbeaddressedto:CommandingOfficer,NavalAlrWarfareCenterAircraftDlvlsionLakehurst,CodeSR3,Lakehurst,NJ08733-5100,byusingtheself-addressedStandardlzatlonDocumentImprovementProposal(00Form?426)appearlnqattheendofthisdocumentorbyletter.AMSCN/AAREAMFFPDISTRIBUTIONSTATEMENTA:Approvedforpublicrelease;distributionIsunlimited.——————----——--———-.—MIL-A-8625F2.APPLICABLEDOCUMENTS2.1Governmentdocuments,2.1.1Speciflcattonsandstandards.Thefollowlngspeclflcatlonsandstandardsformapartofthisdocumenttotheextentspeclfledherein.Unlessotherwisespeclfled,theissuesofthesedocumentsarethosel~stedhtheuissueoftheI)epartmentofDefenseIndexofSpecificationsandStandards(0001SS)andsupplementthereto,citedInthesolicitation.SPECIFICATIONS.MILITARYMIL-P-23377-PrimerCoating,Epoxy-Polyamide,ChemicalandSolventResistantMIL-C-81706-ChemicalConversionMaterialsforCoatingAlumlnumandAluminumAlloysMIL-P-85582-PrimerCoatings:Epoxy,WaterborneFEDERALQQ-A-250/4-AluminumAlloy2024,PlateandSheetSTANDARDSFEDERALFED-sTD-141-Paint,Varnish,Lacquer,andRelatedMaterials:MethodsForSampltngandTestingFED-STD-151-Metals;TestMethodsMILITARYMIL-STD-105-SamplingProceduresandTablesForInspect~onByAttribute(UnlessotherulseIndicated,copiesoffederalandmilitaryspecificationsandstandardsareavailablefromDODSSP-CustomerService,StandardlzatlonDocumentsOrderDesk,700RobblnsAvenue,Building4D,Phlladelphla,PA19111-5094.)2.2Non-Governmentpublications.Thefollowtngdocumentsformapartofthis-documenttotheextentspecifiedherein.Unlessotherwisespeclfled,the~ssuesofthedocumentswhichareDODadoptedarethosellstedIntheIssueofthe0001SScitedInthesolicitation.Unlessotherwisespeclfled,theissuesofdocumentsnotllstedIntheDODISSaretheissuesofthedocumentscitedfnthesollcltatlon(see6.2).AMERICANSOCIETYFORTESTINGANDMATERIALS(ASTH)ASTMB117MethodofSaltSpray(Fog)TestingANSI/ASTMB137=HeightofCoatingonAnod~callyCoatedAluminum,MeasurefnentofASTMB244-ThicknessofAnodicCoatingsonAlumlnumandofOtherNonconductiveCoatingsonNonmagneticBasisMetalswithEddyCurrentInstruments,MeasurementofASTMD822-LightandWaterExposureApparatus(Carbon-ArcType)forTestingPaint,Varnish,LacquerandRelatedProducts,StandardPracticeforOperatingM~L-A-8625FASTMD2244--ColorD“lfferencesofOpaquOflter~alsiInstrumental.,.,JEvaluationofStandardPracticeforOpera$@gLightExposureApparatus(Carbon-AicType)bllthandllf’thoutWaterforExposureofNon-metallicMaterialsOperatingLight-ExposureApparatus(Xenon-ArcType)WithandbllthoutIlaterforExposureofNon-metalllcmaterialsASTMG23ASTMG26-(Applicationforcop~esshouldbeaddressedtotheAmericanSocietyfor.TestingandMaterials,1916RaceStreet,Phlladelphla,PA19103.)32.3Orderofprecedence.Intheeventofaconflictbetweenthetextofthisdocumentandthereferencescitedherein,thetextofthisdocumenttakesprecedence.NothingInthisdocument,however,supersedesapplicablelawsandregulat~onsunlessaspeclflcexemptionhasbeenobtained.3.REQUIREMENTS3.{Materials.Thematerialsusedshallbesuchastoproducecoatingswhichmeettherequirementsofthisspecification.3.1.1Basemetal.Thebasemetalshallbefreefromsurfacedefects,causedbymachining,cutting,scratching,polishlng,buffing,roughening,bending,stretching,deforming,rolling,sandblasting,vaporblastlng,etching,heattreatmentcondltlon,alloychemtstryImbalanceandinclusions,thatwillcausecoatedtestpanelsorpartstofaflanyoftherequirementsofthisspecification.Thebasemetalshallbesubjectedtocleaning,etching,anodlzlngandseallngproceduresasnecessarytoyteldcoatingsmeetingallrequirementsofth!sspecification.3.2Equipmentandprocesses.Theequipmentandprocessesemployedshallbesuchastoproducecoatingswhichmeettherequirementsofth~sspecification.-UnlessotherwisespecifiedInthecontract,purchaseorderorapplicabledrawfng(see6.2),processoperatingconditionsshallbeattheoptionofthesupplfer.3.3General.3.3.1Anodlztngofpartsandassemblies.3.3.1.1Anodlzlngofparts.Unlessotherwisespecifiedinthecontract,purchaseortierorap@Jicabledr$u?fig(see’6:2),partsshallbeanodizedafter,,,al?heattreatment,~.machining,~e?dlr!g?formingandperforatinghavebeen.completed.!3.3.1.2Anod~zhdofassemb~ies.‘UnlessotherwisespeclfledInthecontract,purchase”brderorapplicabledrawi%g,anodiccoatingsshallnotbeappliedto-assemblteswhtch’will’entrapthe’electrolyteInjointsorrecesses(componentsshallbeanodizedseparatelypriortoassembly).Nhenanodlzlngofassembliesisauthorizedbythe;coit~actjpurchase,orderorapplicabledrawing,theproce,sslng,fflet~odused’s~allnotresultinsubsequentdamagetotheassemblyfromelectrolyteentraprnent[(TypeIor”IAcoatingsshallbeusedunlessanothercoatingTypeIsspecl,fied).Assemblieswhichcontainnon-aluminumpartssuchassteel,brassororganicsubstances,whichwouldbeattackedbypretreatmentoranodizingsolutlonsorwouldpreventun{formformationoftheanodlccoating,shallnotbeanodizedasassemblies,unlessthenon-aluminumsurfacesaremaskedorelectricallyinsulatedInamannerwhichproducesanodlccoatingsmeetingtherequirementsofthisspecification.3MIL-A-8625F3.3.1.2Anodtzlngofcomplex.shapes.HhenanodizingcomplexshapeswhichuIIIentraptheelectrolyteinrecesses,theprocessingmethodusedshallnotresultinsubsequentdamagetothepartfromelectrolyteentrapment(TypeIor1AcoatingsshallbeusedunlessanothercoatingTypeIsspeclfled).3.3.2Handllngandcleanlnq.Partsshallbesohandledduringallpretreatment,anodizingandposttreatmentsthatmechanicaldamageorcontaminationwI1lbeavoided.Partsshallbefreeofallforefgnsubstances,oxidesandsoils,suchasgreases,oILpafntandweldingflux
’.’:“,.:::y....,.:......’............“.’3.OOCUMENTTiTLC1.DOCUMENT.-MT1.NUMB[RXDOCUMLMY0A7t(YYMhfOOjq&MATTNC.SNATUREOFCHANGE(kdtntlfypatagtaphnutntwandinducitproposedrewrite,if~“ble.Attachqflra.“$/wetsasneeded.),..‘d”S.RfA$ONFORRtCOMMtNDAllON8.a.PRtPARltfGACTIVIWOFFICER,NAVALAIR‘G{FARECENTERAIRCRAFTDIVISIONLAKEHURSTSYSTEMSREQUIREMENTSDEPARTMENTLADOFKSSOchdezipC*)!ECOFMA~OINGCommercial(1)b.TELEPHONE(MudetitCode)(2)AUTOVON(908).323-7488WYOU00NOTRECtlVtAREPLYWITHIN624-748845OAY$,CONIA~:CODESR3LAKEHURST,NJ08733-5100MfenseQualityqndStandardizationOffice5203LtesburgPike,Suite1403,fallsChurch,VA22041-M66Telephone(703)7S&23aAUTOVON289.2340“
