GM 4384-1994 GENERAL ELECTRODEPOSITION PRIMER REQUIREMENTS

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1、m9OOb3?=l0002=lb960.5ESd1GENERALMOTORSENGINEERINGSTANDARDS1MaterialsandProcesses-PaintIGENERALELECTRODEPOSITIONPRIMERREQUIREMENTSGM4384M1SCOPE.Thisspcciticationdetailsthegeneralmaterials3REQUIREMENTS.performance,compatibility,andprocessinginformationrequirementsforcorporateapprova

2、lofelectrodeposition3.1RESTRICTEDANDREPORTABLECHEMICALS@IJO,E-coat,Electrocoat)primers,Thisspecificationapplies(GMlOOOM).By1997startofsaleablevehicles,allmaterialstolow,medium,andhighfilmbuildmaterialsforuseonvehi-suppliedtothisspecificationmustcomplywiththerequirc-cles,spaaframes

3、andsmallparts.TheseprimersareintendedmentslistedinGMlOOOM,“RestrictedandReportabletoprovidecorrosionandchipresistanaandmayormaynotchemicals”.beintendedforsubsequentcoatingforappearanceapplica-3.2TheGMELPOengineerresponsiblefortechnologyqual-tions.ificationshallbecontactedpriortote

4、stinitiation.Thefollowingproductinformationshallbesubmittedatthestartof1.1Materialsqualifiedtothisstandardshallmeettheperfor-testing.TypicalmeasurementrangesshallbeprovidedwheremancetequirementsshowninTable2fortheclassoffinishapplicable.specifiedintheindividual998xXxX.Additionalte

5、stingandanyexceptionstotherequirementsdetailedhcrcinarenotedinProductcodetheindividualprimer’srespective998xXxXspecification.FeedratioTheprimersareclassifiedasfollows:Solutionconductivity(ASTMD4399)Volume%solids(ASTMD2369B)forcomponents9984017:LowFilmBuildSheetMetal&ServiaPartsWei

6、ght%solidsforcomponents(black)VOC(ASTMD3960)9984094:MediumFilmBuildusedwithprimersurfacerHardness-ASTMD3363(Pencilhardness)(grayandblack)ASTMD1474(Tukonhardness)998407O:HighFilmBuildusedwithorwithoutprimersur-Density(ASTMD1475)f-r(gray)Gallonweight9984139:SpaceFrame(grayorblack)pH

7、(ASTME70)Materiallife1.2Materialstargetedforapprovalunderthespecificationslistedabovemustmeetthe3criterialistedbelow.TheELPO3.21VolatileOrganicCompounds(VOC),ASTMD3960.engineerresponsibleforapprovalwilldecidepriortosubmis-ThemaximumallowablelevelofVOCisspecifiedineachsionwhichofth

8、esecriteriawillbeapplicable.indiv