ASTMD39328007595110O032932OI4-5210Designation:D3932-804CTbAMERICANSOCIETYFORTESTINGANDMATERIALS1916RaceSt.,Philadelphia,Pa.19103ReprintedfromtheAnnualBookofASTMStandards,CopyrightASTMIfnotlistedInthecurrentcombinedindex,willappearinthenextedition.StandardPracticefortheCONTROLOFTHEAPPLICATIONOFSTRUCTURALFASTENERSWHENATTACHEDBYHOTMELTADHESIVE‘ThisstandardisissuedunderthefixeddesignationD3932;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.1.scope1.1Thismethodcoversthecontrolsneces-saryfortheuseofhotmeltadhesivewhenusedtoattachstructuralfasteners,structuralfas-tenersbeingclassifiedasanyattachmentin-tendedtocarryaload.Thismethodconfinesitselftothetechniqueforproperuseoftheadhesiveanddoesnotrecommendeitherthetypefastenerorthehotmeltadhesivetobeemployed.Theareastobedefinedaresurfacepreparationinitsvariousforms,andmethodsfortheapplicationofthe“hotmelts.”Severaltypesoftoolingrequiredfortheapplicationaredescribed.2.ApplicableDocuments2.1ASTMStandards:D897TestforTensilePropertiesofAdhesiveD907DefinitionsofTermsRelatingtoAd-Bonds2hesives23.DescriptionofTerms3.1cleansurfQce-asurfacethatisfreeofforeignmaterialbothvisibleandinvisible.Acleansurfacecanbedeterminedbythestand-ardwaterbreaktest.3.2waterbreaktest-anysurfacethatischemicallycleancanbetestedbytheuseofadropofwater,distilledwaterpreferred.Ifthesurfaceisclean,thewaterwillbreakandspread;acontaminatedsurfacewillcausethewatertobead.Acleansurfaceisessentialformaximumbondstrength.3.3ForDefinitionsofotherterms,refertoDefmitionsD907.4.ApparatusforSurfacePreparationandHotMeltAdhesiveApplication4.1Theapparatusrequiredfallsintotwocategories,cleaningmaterialsandapplicationtools.4.1.1CleaningMaterials4.1.1.1ChemicalScrub:(a)Lintlesstackrag,(b)Corrosionresistant,steelwool,(c)Chemicalsolventcompatiblewithsur-faceunderpreparation,(d)Abrasivepowercleaner,and(e)Distilledwater.4.1.1.2AbrasiveCleaning-Abrasivecle...
