Designation:E1555−12StandardSpecificationforStructuralPasteAdhesiveforSandwichPanelRepair1ThisstandardisissuedunderthefixeddesignationE1555;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope1.1Thisspecificationdefinesthosecharacteristicsthatarerequiredofadhesivestobeusedintherepairofsandwichpanelsfordurable,rigidwall,relocatablestructures.1.1.1Thisspecificationcoverstwo-partepoxyadhesivesuitableforbondingaluminumalloyfacingstononmetalliccore,coretocore,andcoretoperimeteraluminumextrusionframeintherepairofdurablerigidwallrelocatablestructures.Theadhesiveshallbesuitableforformingbondsthatwillwithstandexposuretotemperaturesfrom−54to93°C(−65to199°F)andhighrelativehumidityandwillalsowithstandthecombinationsofstress,temperature,andrelativehumiditythatareexpectedtobeencounteredinservice.Theadhesiveshallalsobesuitableforthebondingofpanelinsertsandedgeattachments.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandardwhereonlySIunitsaregiven,orwhereSIunitsaregivenfirstfollowedbyinch-poundunits;whereinch-poundunitsaregivenfirstfollowedbySIunits,theinch-poundunitsaretoberegardedasthestandard.1.3Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsdescribedinthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2B209SpecificationforAluminumandAluminum-AlloySheetandPlateD1002TestMethodforApparentShearStrengthofSingle-Lap-JointAdhesivelyBondedMetalSpecimensbyTen-sionLoading(Metal-to-Metal)D1781TestMethodforClimbingDrumPeelforAdhesivesD2919TestMethodforDet...