GM 9071P-2002 Tape Adhesion Test for Paint Finishes

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1、ENGINEERINGTestMethodGM9071PSTANDARDSMaterialsTapeAdhesionTestforPaintFinishes3.1.1NominalDimensions.1ScopeWidth……………………………………….20mmNote:Nothinginthistestmethodsupersedesap-Thickness,totalASTMD3652M………0.14mmplicablelawsandregulationsunlessaspecificexemptionhasbee

2、nobtained.Thickness,backingASTMD3759M…..0.08mmNote:IntheeventofaconflictbetweentheEng-3.1.2Properties.lishandthedomesticlanguage,theEnglishlan-Peelstrength,steelASTMD3330M430N/mminguageshalltakeprecedence.TensilestrengthASTMD3759M…….7kN/mnomThisstandardspecifiest

3、hetestmethodtobeusedforevaluatingtheadhesionpropertiesofpaintedElongationASTMD3759M……………..5%nommetalandplasticbeforeandafterenvironmental3.1.3ShelfLife…………………….12monthsmax.testing.Thisstandarddescribesthecrosshatchtapetest(MethodA)andX-cuttapetest(Method3M610,3M6

4、70or3M898havebeenfoundB).Paintsystemsarerequiredtomeetthere-suitableforthispurpose.OthertapesourcesquirementsofMethodAand/orMethodB.Unlessshouldbecomparedtoboththeaboveparametersotherwisespecified,whendryfilmthicknessisandtheabovetapesource.GM9035Pmodifiedgreater

5、than125mmuseX-cuttapetest(MethodforinfraredanalysisoftapemayalsobeusedtoB).IfneitherMethodAnorMethodBisusabledeterminetheequivalency.duetosizeand/orshapeconstraints(typically3.2Sharppointedrazorknife,razorblade,orfoundinsmallparts)thesenseofthetestshallbeGardcopa

6、intadhesiontester(P-A-T)cuttingtool.utilized.3.3Rubbereraser(penciltype)orequivalent2Referencesinstrumentforapplyingtape.3.4AcuttingguidecanbeusedforMethodA,ifNote:Onlythelatestapprovedstandardsareap-thecuttingtoolisnotavailable.plicableunlessotherwisespecified.2

7、.1Normative.4TestMaterialASTMD3330MASTMD3652ASTMD37594.1Whenspecifiedthecoatedtestspecimensshallbesubjectedtoanenvironmentaltest,such2.2GM.aswaterimmersion,humidityorsaltspraytest,GM4365MGM9035Petc.beforeconductingthetapeadhesiontest.Inthiscase,conducttheenvironm

8、entaltestasrequiredanddrythesamplesbyblottingwith3TestEquipmentabsorbentpaperorcloth.3.1PressureSensitiveAdhesionTape.Itis4.2Therecoverytimeafterexposureextrem