Designation:D4317−16StandardSpecificationforPolyvinylAcetate-BasedEmulsionAdhesives1ThisstandardisissuedunderthefixeddesignationD4317;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.INTRODUCTIONThisspecificationisareplacementforFederalSpecificationMMM-A-180C,ClassB,August6,1979,Adhesive,VinylAcetateResinEmulsion,whichsupersededMMM-A-193C,October26,1967.Ithasbeenexpandedtoincludethemorewater-resistantpolyvinylacetate-basedadhesivesnowonthemarket,inadditiontothelesswater-resistantonesformerlycoveredbytheFederalSpecification.1.Scope*1.1Thisspecificationcoverspolyvinylacetateorpolyvinylacetatecopolymerresinemulsionadhesivessuitableforuseonwood,wood-basedsubstrates,orplasticlaminates.Itdoesnotcoverthegroupofpolyvinyl-basedadhesiveswhicharesuitableforbondingflexiblefilms.1.2Theadhesivesareclassifiedatthreeperformancelevelsinaccordancewithwater-resistanceasshowninTable1andTable2.SeeSection5foradescriptionoftheexpectedexposureconditionsforeachclassofadhesive.SeeTableX1.1foraclassificationoftypicalendproductsthataremanufac-turedusingadhesivesatthethreeperformancelevelscoveredbythisspecification.1.3Thefollowingindexisprovidedasaguidetothetestmethodsportionofthisspecification:SectionTestsforPhysicalProperties9Viscosity9.1.1Density9.1.2Nonvolatiles9.1.3pH9.1.4TestsforAdhesiveBond10BlockShearStrength,Compression10.2PlywoodShearTests10.31.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesisareforinformationpurposesonly.1.5Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodportion,Sections9and10,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesa...
