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1、WORLDWIDETestMethodENGINEERINGGMW14829MaterialsSTANDARDSTapeAdhesionTestforPaintFinishes•Peelstrength,steelASTMD3330M760N/mmin1Scope•ElongationASTMD3759M…………..….5%max.Thisstandardspecifiesthetestmethodtobeused3.1.3ShelfLife……………………12monthsmax.toevaluatetheadhesionpro
2、pertiesofpainted3.1.4RecommendedProducts….3M8981,3M898metalandplasticbeforeandafterenvironmental3.2Sharprazorknife,retractablecarbidecutterbytesting.ThisstandarddescribesthecrosshatchReider(Swiss)“RicoMarker”,orcuttingtoolbytapetestusingthecuttingtoolorcuttingguide.A
3、llGardcoorBYKGardnercross-cuttester.paintsystemsmustmeettheadhesionrequirementswheneithermethodisused.Unless3.3Cuttingguideat1mm,2mmand3mm.otherwisespecified,thedryfilmthicknesswill3.4Rubbereraserorequivalentinstrumentfordeterminewhichguideortoolisrequired.Ifeitherap
4、plyingtape.methodisnotusableduetosizeand/orshape3.5Stiffpencilbrush.constraints(typicallyfoundinsmallparts)thesenseofthetestshallbeutilized.4TestMaterialNote:NothinginthespecificationsupersedesapplicablelawsandregulationsunlessspecificThetestpieceswhereverpossiblesha
5、llbetheexemptionhasbeenobtained.finishedpart.Ifsize,shape,etc.ofthefinishedpartisunsuitable,testsshallbeconductedonspeciallyNote:IntheeventofconflictbetweentheEnglishpreparedcoatedtestpanels.anddomesticlanguage,theEnglishlanguageshalltakeprecedence.--`,,```,,,,````-`
6、-`,,`,,`,`,,`---5TestMethod2References5.1SummaryofTestMethod.TheadhesionoforganiccoatingsasdeterminedbythistestmethodNote:Onlythelatestapprovedstandardsareshallbedefinedasthetendencyofthecoatingtoapplicableunlessotherwisespecified.becomedetachedinthevicinityofscribed
7、linesin2.1ExternalStandards/Specifications.theshapeofalatticepatterncutthroughtheASTMD3330MASTMD3759coating,beforeandafterexposuretodefinedenvironmentalconditions.ASTMD36525.2TestSamplePreparation.2.2GMStandards/Specifications.5.2.1Partsintheasreceivedconditionsshoul
8、dbeGM4365Mcleananddrybeforeconductingthetest.Oil,waxoranyresidueinthepaintedsurfaceshallbe3TestEquipmentremovedwithsoapandwateroran
