ML17321A098
| ML17321A098 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 02/28/1982 |
| From: | TSI, INC. |
| To: | |
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| ML17321A099 | List: |
| References | |
| 80581, NUDOCS 8406210367 | |
| Download: ML17321A098 (53) | |
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TSgTECHNICALNOTE80581THERMO-TAG330CONFORK4BLESTRESSSKINTHREEHOURPIREWALLSYSTEMAPPLICATIONPROCEDURESFEBRUARY198284062i03678406j5PDRADQCK050003i5FPDRt)THERMALSCIENCE,INC.~3260BRANNONAVE.~ST.LOUIS,MO63139~(314)352-8422Telex:Domestic44-2384~Overseos209901~Telecopier(314)352-5626 II TSXTECHNICALNOTE80581T)KRHO-LAG330CONFORMABLESTRESSSKINTHREEHOURFIREMQLSYSTEMAPPLICATIONPROCEDURESFEBRUARY1982le0INTRODUCTIONThisproceduresetsforththesequentialstepsinvolvedinapplyingtheTHERMO-LAG330ConformableStressSkinThreeHourPireVa11SystemtofirevallsTheTliERMO-LAG330ConformableStressSkinThreeHourPireMallSystemconsistsofTHElNO-LAG330-1SublimingCoating,THERM-LAGStressSkinType330-69aadTHZ1QC-LAG351SeriesPrimer.2.0PRE-APPLICATIONPRACTICES'.1alificationofContractorTheapplicationshallbeperformedbyaqualifiedcontractorvhohashadpriortraininginapplyingthematerialsandwhohastheequipmentrequiredtoperformtheapplication.2.2SafetPrecautions3Thecontractorshallfollovstaadardindustrialsafetypractices.establishedforthehandlingofchemicalcoatingsaadshallconformto'applicableOSHAandovaersafetyrulesinallrespects.'DeliveThecoatingmaterialsshallbedeliveredtotheJobsiteinoriginallysealedcontainersvhichsbovtheproductname,batchorlotnumber,color,nameofthemanufacturerandtheexpirationdate.
2.4~Storae'hecoatingmaterialsshallbestoredoffthegroundwhennotinuseinanareaprovidedforthatpurpose.Thematerialsinstorageshallbeprotectedagainstfreezingandfromt'emperaturesabove100'F.2.5TemeratureandPreciitationThecoatingmaterialsshallbeappliedonlytodrysurfaces.Thetemperatureofthecoatingmaterialandsurfacestobecoatedshallbeabove40'Fduringthematerialapplicationandcuringperiods.Thecontractorshallfurnishandinstallanyprotectivecoversrequiredtoprotectthenewlyappliedcoatingfromrainfall,hardfreezeorcontaminantsduringitsinitialcuringperiod2.6ProtectionofAdscentSurfacesemati1sdri30EXPANDEDMETALOROTHERSTEELSUPPORTMATERIALSURFACEPREPARATIONThecontractorshallmaksofforotherwiseprotectionalladjacentareasand"inplaceequipmeat"fromreceivingaaymaterialoversprayduringthecoatingapplication.Anyspilledmaterialandoversprayshal1beremovedpromptlyusing~~terwetragsorspongesbefore.therahaed3.1Prepare'thesurfaceonbothsidesoftheexpandedmeta1orothersteelsupportmateriaLforapplicationoftheTHERMO-LAG351Primerbyremovinganydirt,scale,rustorothercontamiaants.Neverapplytheprimerdirectlyover'anybardor'lossypaintedsurfaceswithoutrougheningthesurfaceinaccordancewithstandardpaintingpractices.342P~esurethatthesurfacesonbothsidesofthecleanedexpandedmetalorothersteelsupportmaterialarecompatiblewiththeTHER-'%-LAG330-1SublimingCoatingbymakingcrosshatchadhesiontestsAD~ysapplyabarriercoatofTHERMO-LAG351Primeroversteelsurfaceswhichhavebeenpreviouslyprimedwithazincbasedprimer-Alldoubtfullpaintedsurfacesshouldberemovedusingmechanicalmetho'ds,ApplytheTHERM)-LAG351PrimertobothsidesoftheproperlypreparedexpandedmetalorothersteelsupportmaterialusingsprayequipmentorarollerTheminimumacceptabledryprimerthicknessshallbe0.002inches,whichisnormallyachievedbyapplyingataspreadrateofcirca200sq.ft.pergallon.
3.3Measureprimerthicknessusinganapproveddirectreadiaggauge,3.4Makecrosshatchadhesiontests,asperFederalStandard141a,ontheprimedsurfaceoneachsideoftheexpandedmetalorothersteelsuppor'tmaterialtoassureproperadhesioabetveentheprimeraad~thesteelsurfaceexists-priortoproceedingwiththeapplicationoftheTREZHO-LAG330-1Sub1imiagCoating.3.5Makeatleastonecrosshatchadhesionteatevery100aqaurefeetofprimedsteelsurfacearea.Anyprimedsurfaceareavhichfailsthecrosshatchadhesiontestshallberemovedusing.mechanicalcleaningmethodsaadshallbereprimedwithTHERMD-LAG351Primer~3.6SurfacesarereadytoreceivetheapplicationoftheTHERMO-LAG330-1SublimingCoatingaftersuccessfulcrosshatchadhesiontestshavebeenestablished.40'PPLICATIONOFTHERHD-LAG330-1SUBLIMINGCOATINGANDTHERMO-LAGSTRESSSKINTXPE330-69/4.1Coatbothprimedsidesoftheexpandedmetalorothersteelsupport.materialwithTHHRO-LAG330-1SublimingCoating.Useabsorbentmaterialsuchasplyvoodorparticleboardasabackingfortheexpandedmetalwhensprayiagthefirstsideoftheexpandedmetal.Thecoatingshallbeappliedinaccordancewithinstructionsgivenin,Section4.0,Paragraph4.1.1through4.1.6ofTSI'sTechnicalNote80181-RevisionII-datedDecember1981~shownhereinasAppeadixA,4.2ApplyTHE/QQ-LAGStressSkinType330-69tothevetsurfacesoneachsideafterthefinalpassandusearollertoflattenoutanywrinklesandtoembedtheStressSkinsecurely.ThenapplysufficieatTHHQQ-LAG330-1.SublimingCoatingtocovertheembeddedTHERHO-LAGStressSkinORRKNCOATINGPRIORTO?QUNTING4;3Cutfour.identicalsectionsofTH1UQX)-LAGStressSkinlargeenoughtocompriseaportionofthefirewall4.4CoattwosectionsoftheTHERM)-LAGStressSkiavithTHERM-LAG330-1SublimingCoating.Thecoatingshallbeappliedi'naccordancewithinstructionsgiveninSection4.0,Paragraph4.1.1through4.1.6ofTSI'sTechnicalNote80181-RevisionII-datedDecember1981,shcr~hereinasAppendixh.
4.5ApplyapeofthepreviouslycutsectionsofStressSkintoeachofthetwocoatedsectionsafterthefirstpasswithTHERM-LAG330-1SubliadngCoating.UsearollertoflattenoutanywrinklesandtoembedtheStressSkinsecurely.4.6MountthetwosectionsofcoatedStressSkiaontheexpandedmetalorothersteelsupportmaterialusing410bolts,washersandnuts.Theholesandcounterboreforthe410boltassembliesaretobedrilledon12inchcenterswiththetwocoatedsectionsbeingheldinplace.4.7ApplysufficientamountsofTHERHO-LAG330-1SublimingCoatingtofillthecounterboreholesandtocovertheembeddedStressSkin.ORASANACCEPTABLEOPTION4.84.9CutfouridenticalsectionsofStressSkintogetherwithanidenticalsectionofexpandedmetallargeenoughtomountoatheinstalledrectangularsteeltubingorotherstructuralsteelentities.FastenonesectionofStressSkintoeachsideoftheexpandedmetalsectionusingmechanicalfasteners.~4.10CoatbothattachedStressSkinsectionswithTHERMO-LAG330-1SublimingCoating.ThecoatingshallbeappliediaaccordancewithinstructionsgiveainSection4.0,Paragraph4.1.1through4.1.6ofTSIsTechnicalRote80181-RevisionII,datedDecember1981andIshownhereinasAppendixh4.11ApplyoneofthepreviouslycutsectionsofStressSkintoeachofthetwocoatedsectionsafterthefinalpassofTHERMO-LAG330-1SublimingCoating.UsearollertoflattenoutanywrinklesandtoembedtheStressSkinsecurely4.12Mountthecoatedsectionontherectangularsteeltubingorotherstructuralsteelentitiesusiaglongbolts,wasbersandnuts.ApplysufficientamountsofTHERMO-LAG330-1Sub1imingCoatingtocoverthe.boltbeadsandtherectangularsteeltubingorotherstructuralsteelentities 5.0POSTAPPLICATIONPRACTICESf5.1hcleanandorderlyconditionshallbemaintainedintheapplicationarea.Followingtheapplication,alloverspray,debrisandequipmentshallberemovedandthearealeftinaconditionacceptabletotheewer.6.0EUIPMENTSUGGESTIONS6.1ThemosteconomicalandsatisfactorymethodofapplyingTHERMO-LAC330-1Sub1imingY~terialisbyeitherairlessorairtypesprayequipment6.2SuggestedcomplementofsprayequipmentforbothtypesareshowninAppendixBtothisprocedure6.3kschematicofSuggestedPenetraingY~asuringDevicesisshowninAppendixCtothisprocedure APPENDIXhTSI'STECHNICALNOTE80181-REVISIONIl-DATEDDECEHBER1981ISECTION40COATINGAPPLICATIONTECHNIQUES 4.0COATINGAPPLICATIONTECHNTUES80581-iri3-1.AG330CONiiSTRESSSKINTHREEHOURFIREVA1.1.SYSTEM-FEBRUARY39824.1Srahlication4.1.1ApplytheTHERHO-LhC330-1SublimingCoatingoveraproperlypreparedsurface.Makesurethatthesurfacetobecoatedisclean,dry,above40'Fandfreefromscale,rustorothercontaminants.4.1.3UApplythematerialinasmanypassesasrequiredtoprovidetherequiredFilmbuildofthecoatingthickness,takingcaretoavoidslumpingorsaggingofthecoating.Normally,arequired0.500inchdrycoatingthicknessisaccomplishedbyapplyingthreewetcoatsof0.225inches.Bowever,thethicknessvhichcanbesafelyappliedinasinglepassvi11.dependonthetemperature,humidityandotherfactorsthatarebestdeterminedonthegobsiteh1thematerialinsmoothevenpasses,takingcaretokeepthesprayppygunfanpaternata90'nglewheneverpossible.Reachingwithaspraygunvillcausethespraypatterntovaryfromthe90angleandvillresultinaroughersurfacethannorma3.~4.1.4I'akefrequentwetthicknessmeasurementsduringtheapplicationusingapenetrationmeasuringdevicesuchasshowninAppendshtoensurethatthecoatingisbeingapplieduniformlyandat'therequiredvetfilmthicknessThesevetthicknesscheckssha11bemadeeveryfivesquarefeetoreverytworunningfeetofcoatedsurfacearea.(hote:%hentakingmeasurementsallerforashrinkagerateofcirca25Xbetweenthevetandthedesireddryfilmcoatingthickness.)Removeexcessbuildupofcoatingmaterialatedgesandpointsbybrushingorrollingthesurfacevithadampspongeroller.Sredgesofthesubstratefromeachsidetocausethematerialtoedwraparoundtheedge.Iftheedgecoatingisnotcompletedcloseuseawetrollerortroweltosealtheedgesurface4.1.7.Ap1Fiberglass'rmoringtothewetsurfaceafterthefinal'as's'andpyusearollertoflattenoutanywrinklesandtoembedthefiberglasssecurely~Ihenapplysufficientmaterialtocovertheembeddedfiberglass4.1-8Removeallruns,sage,dripsorothersurfaceimperfectionsbeforethematerialcuresusingwetspongerollers,brushesorhandtrowels.Ri.VISIONII
A:E!iDIXATOTSlS80581-THERHO-LAG330CONFORyhSI,STRESSSKINTHREEHOURFIREMALLSYSTEM-FEBRUARY19824.2.1HandhlicationrTrovelthematerialtoauniformthicknessusingmoderatepressureandavoidovervorking.Thetrovelshouldbevettedvithvatervhenasmoothfinishisrequired.4.2.2Glovethematerialtocablesandsmallpipesusingstandardvorkgloves.PorksmallareasandkeeptheglovesvettoinsurearelativelyuniformthIckness.4.3DFilmThickness?feasuremeats4.3.1TakedryfilmthicknessmeasurementsaftertheappliedmaterialhascuredMeasuremeatsshallbemadeusingelectrical,peaetratiagormagneticmeasuringInstruments,4,4ReairProcedures-D~e4.4.1RemoveddamagedandloosematerialusingaknifeandscrapperCutbackuntilsoundadheringmaterial.isreached4.4-2TheedgeshouldbeundercuttoformabevelededgeasXnplasterrepair4.4.3Removeallforeignmatterfromthesubstrateusingavirebrush.4.4.4.,SprayortrovelTHERM-LAG330-1ontopatch'area.Severalcoatsofthematerialcanbeappliedtoachievethede'siredfilmthickness..Besuretoallovfor'shrinkageofrepairpatchbybuildingupaslightdomeshapeviththepatch.REVISIONII 9.0DIRECTSPRAYOVEREXPANDEDMETALTHREEHOURFIREWALLDESIGNInstallationoftheDirectSprayoverStressSkinThreeHourDesigntoformaFireWallinvolvescoatingbothsidesoftheexpandedmetalorothersteelsupportmaterialwithTHERMO-LAG330-1SublimingMaterial-SprayGrade,andthenapplyingTHERMO-LAGStr'essSkinType330-69tothewetsurfacesoneachside.Thesequentialstepsinvolvedininstallingthisfirebarrierdesignonthefire,wallsupportmaterialaredescribedinthefollowingparagraphs.9.1InstallationofThreeHourFireBarrierDesin9.1.1Attachtheexpandedmetaltothestructuralsteelframinginthosecaseswhereexpandedmetalis'required.9.1.2PreparethesurfaceonbothsidesoftheexpandedmetalorothersteelsupportmaterialforapplicationoftheTHERMO-LAG,351-2Primerbyremovinganydirt,scale,rustorothercontaminants.Neverapplytheprimerdirectlyoveranyhardorglossypaintedsurfaceswithoutrougheningthesurfaceinaccordancewithstandardpaintingpractices.9.13ApplytheTHERMO-LAG351-2Primertobothsidesoftheproperlypreparedexpandedmetalorothersteelsupportmaterialusingsprayequipmentoraroller.ThePrimershallbeappliedinaccordancewithinstructionsgiveninParagraph12.0herein.9.1.4CoatbothprimedsidesoftheexpandedmetalorothersteelsupportmaterialwithTHERMO-LAG330-1SublimingMaterial-SprayGrade.ThecoatingshallbeappliedinaccordancewithinstructionsgiveninParagraph12.0herein.ApplyTHERMO-LAGStressSkinType330-69tothewetsurfacesoneachsideafterthefinalpassandusearollertoflattenoutanywrinklesandtoembedtheStressSkinsecurely.Thenapplysufficient~THERMO-LAG330-1SublimingMaterial-SprayGrade,tocovertheembeddedTHERMO-LAGStressSkin.2-32 ORWHENCOATINGPRIORTOMOUNTING.9.1.5CuttwoidenticalsectionsofTHERMO-LAGStressSkinlargeenoughtocompriseaportionofthefirewall.CoattwosectionsoftheTHERMO-LAGStressSkinwithTHERMO-LAG330-1SublimingMaterial-SprayGrade,intherequireddryfilmcoatingthicknessof0.625"+/-0.125".ThematerialshallbeappliedinaccordancewithinstructiongiveninParagraph12.0herein.9.1.7MountthetwosectionsofcoatedStressSkinontheexpandedmetalorothersteelsupportmaterialusingapproved810bolts,washersandnuts.Theholesandcounterborefortheapproved810boltassembliesaretobedrilledon12inchcenterswiththetwocoatedsectionsbeingheldinplace.9.1.8ApplysufficientamountsofTHERMO-LAG330-1SublimingMaterial-SprayGrade,intherequireddryfilmthicknesstofillthecounterboreholes.ORASANACCEPTABLEOPTION9.1.'9CuttwoidenticalsectionsofStressSkintogetherwithanidenticalsectionofexpandedmetallargeenoughtomountontheinstalledrectangularsteeltubingorotherstructuralsteelentities.9.1.10Coatingtheexpandedmetalwithadryfilmthicknessof0.625"+/-0.125"oftheTHERMO-LAG330-1SublimingMaterial-SprayGrade.ThecoatingshallbeappliedinaccordancewithinstructionsgiveninParagraph12.0herein.2-33 9.1.1ApplyoneofthepreviouslycutsectionsofStressSkintoeachofthetwocoatedsectionsafterthefinalpass'ofTHERMO-LAG330-1SublimingMaterial-SprayGrade.UsearollertoflattenoutanywrinklesandtoembedtheStressSkinsecurely.!I'.1.2:Mountthecoatedsectionontherectangularsteeltubingorotherstructuralsteelentityusingapprovedlongbolts,washersandnuts.9.1.3ApplysufficientamountsoftheTHERMO-LAG330-1SublimingMaterial-SprayGradetocovertheboltheads.
12.0COATINGAPPLICATIONTECHNIVES12.1THERMO-LAG351PrimerAlication12.1.1PreparethesurfaceofthesteelentityforapplicationoftheTHERMO-LAG351TypePrimerbyremovinganydirt,scale,rustorothercontaminants.Neverapplytheprimerdirectlyoveranyhardorglossypaintedsurfacewithoutrougheningthesurfaceinaccordancewithstandardpaintingpractices.12.1.2MakesurethatthecleanedsteelsuraceiscompatiblewiththeTHERMO-LAG330-1SublimingMaterialbymakingcrosshatchadhesiontestsasfollows:.CrossHatchAdhesionTest.Theprimeriscutoveranareaapproximately4"by4"inasquarematrix,eachsquarebeingapproximately1/2"by1/2".Ahighqualitytapeis'applieddiagonally.tothesquare.Uponcompletionofthetapeapplication,itisrubbedin~firmlytoassuregoodadhesion.Withonecompleteperkingmotion,thetapeisremoved.Ifmorethan3percentofthePrimerisremovedfromthesurface,theapplicationisfaulty.Thistestshouldbeperformedinareaswhicharedeemedcriticalandinasmanyplacesasrequiredbythespecification.UponcompletionoftheCrossHatchAdhesionTest,thetestareasshouldbeagainwiththeTHERMO-LAG351-2Primerbyeitherbrushingorlightspray.r2-43
AlwaysapplyabarriercoatofTHERMO-LAG351TypePrimeroversteelsurfaceswhichhavebeenpreviouslyprimedwithazincbasedprimer.Alldoubtfulsurfacesshouldberemovedusingmechanicalcleaningmethods.12.1.3ApplythePrimertotheproperlypreparedsteelsurfaceinonecontinuouscoatusingsprayequipmentoraroller.Theminimumacceptabledryprimerthicknessshouldbe0.002incheswhichisnormallyachievedbyapplyingataspreadrateofcirca200sq.ft.pergallon.12.1.4MeasurePrimerthicknessusinganapprovedmagneticdirectreadinggauge.12.1.5Makecrosshatchadhesiontestsontheprimedsurfacetoassure~properadhesionbetweentheprimerandthesurfaceofthesteelitempriortoproceedingwiththeapplicationoftheTHERMO-LAG330-1SublimingMaterial.12.1.5CoattheprimedsteelsurfaceareawiththeTHERMO-LAG330-1SublimingMaterial.ThecoatingshallbeappliedinaccordancewithinstructionsgiveninParagraph12.2or12.3herein.12.2THERMO-LAG330-1SubliminMaterial-SraAlication12.2.1ApplytheTHERMO-LAG330-1SublimingMaterial-SprayGradeoveraproperlypreparedsurface.Makesurethatthesurfacetobecoatedisclean,dry,above40Fandfreefromscale,rustorothercontaminants.12.2.2Applythematerialinasmanypassesasrequiredtoprovidetherequireddryfilmbuildof'hecoatingthickness,takingcaretoavoidslumpingorsaggingofthecoating.Normally,arequired0.500inchdryfilmcoatingthicknessisaccomplishedbyapplyingthreewetcoatsof0.255inches.However,thethicknesswhichcanbesafelyappliedinasinglepasswilldependonthetemperature,humidityandotherfactorsthatare.bestdetermined.onthejobsite.12.'2.3Applythematerialinsmoothevenpasses,takingcaretokeepthespraygunfanpatternata90degreeanglewheneverpossible.Reachingwithaspraygunwillcausethespraypatterntovaryfromthe90degreeangleandwillresultinaroughersurfacethannormal.2-44
12.2.4Takefrequent,wetthicknessmeasurementsduringtheapplicationusingapenetrationmeasuringdeviceasshowninFigure15toensurethatthecoatingisbeingapplieduniformlyandattherequiredwetfilmthickness.Thesewetthicknesschecksshallbemadeeveryfive(5)squarefeetoreverytwo(2)runningfeetofcoatedsurfacearea.(Note:Whentakingmeasurements,allowforashrinkagerateofcirca25Xbetweenthewetandthedesireddryfilmcoatingthickness.)12.2.5Removeexcessbuildupofcoatingmaterialatedgesandjointsbybrushingorrollingthesurfacewithadampspongeroller.12.2.6Sprayedgesofthesubstratefromeachside'ocausethematerialtowraparoundtheedge.Iftheedgecoatingisnotcompletelyclosed,useawetrollerortroweltosealtheedgesurface.12.2.7Removeallruns,sags,dripsorothersurfaceimperfectionsbeforethematerialcures,usingwetspongerollers,brushesorhandtrowels.12.3THERMO-LAG330-1SubliminMaterialTrowelAlication12.3.1Trowelthematerialtoauniformthicknessusingmoderatepressureandavoidoverworking.Thetrowelshouldbewettedwithwaterwhenasmoothfinishisrequired.12.4'.DrFilmThicknessMeasurements12.4.1Takedryfilmthicknessmeasurementsaftertheappliedmaterialhascured.Measurementshallbemadeusingelectrical,penetratingormagneticmeasuringinstruments.2-45 l3.0REPAIRPROCEDURESTherepairofadamagedsectioninaTHERMO-LAG330FireBarrieriseasilyaccomplishedbycuttingoutandremovingthedamagedmaterialandthenfillinginthecutoutsectionwithnewmaterial.Thefirststepinthisproceduresistoremovethedamagedandloosematerialusingaknifeandscraper.Careshouldbeexercisedthatthedamagedmaterialiscutbackuntilsoundadheringmaterialisreached.Thenextstepistoundercuttheedgesaroundthecutoutsectiontoformabevelededge.Allforeignmatteristhenremovedfromtheexposedsubstratesurfaceinthecutoutsection.Finally,theTHERMO-LAG330SublimingMaterialissprayedortroweledintothecutoutsection.Ifnecessary,severalcoatscanbeappliedtoachievethedesiredfilmthickness.Careshouldbetakentoallowforshrinkageoftherepairpatchbybuildingupaslightdomeshapeonthesurfaceofthepatch.2-47 APPENDIXISDGCESTEDCOMPLE262ZOFREQUIREDSPRAYEQV~XFORTEER.'0-LAC330-1SUBLIMNCCOATINCAPPLXCATIOHhX3GZSSSPRATEQVXPHEHT~AVTIIT1Each1Each1Each1Each2Each1Each1Eh1Each1Each1EachfEach'6EachDESCRIPTIONOPKUXPMENT@draSpray~45:1hirPoveredEaaHydraisticSprayCuaSpecial~ValveRAGIllvith0.55TipsAirAgitatorAirEeguIatorKitAirRegulatorOnlyvfthCaugcAirLineFilterAirLineLubricator~RepairPartsKataExtraTipsvithSeaIs100Feet75Feet25Feet1inch1/2inch3/ercI.DKiPressureFluidBoseI.DHiPressureFluidHoseX.D.HiPressureFluidBose APPENDIXI(COmINUED)FAIRAPESPRhYEULPMEC'A'i7ITTDESCRIPTIONOFUZBKhTIEach1Each1Each1Each2Each1Each.1tach1Each1Each1Each5Each10:1PresidentSprayPu"-pAirPevaredRanLHeavyKasticSprayCueSpecialIkeyValve1I4Inchor1(4Inch"E"SprayTipAirAgitatorLQ'egu1atarLitAirReguIatorOalyMthCausekSrIinct.ubricatorherLfaeFi1ter~RepairPartsKits75Feet25FeetlI2InchX.D.Hi-PressureFIuidHose3/5InchX.D.Hi-PressureFluidHoseB-2
(+I51IMBLSaaa%k~E1lSWSWSE%1%%~1RQSS'ESSSASkECISSIQSRSSSO1SSlQQINQS4151tlQIRMS)A'hhlhRSSSDEASSP~SIIISSSRAAAF%5$>SSSiSiSSSSklNISM)SRRISIRRSSSSSIRSiRSRkQNNSiHSSRRSWSkSSISSSSkSSSkSSiSSlSSSSQSi1~t~a~I
~rtJYWX~~A.pMW~~WWi8igWWY~~MA~~.Pl@i9@7rlT<~.'r7ixrm+~SS7~77~<KFi'jIIISI.0 IQS~/J/pgyl/rrrr February3,1984AmericanElectricPowerI/1RiversidePlazaP.0.Box16631Columbus,Ohio43216-6631Attention:Mr.VicDelFavio
Subject:
HatchCoverRequirementsForTHERMO-LAG330FireBarrierSystemFor3Hour'sProtectionFromAnASTME119TypeFireEnvironmentRE:1)Wesson&AssociatesReportentitled"EffectivenessofFireResistantCoatingsAppliedtoStructuralSteelsExposedTo,DirectFlamesContact,RadiantHeatFluxes,andMechanicalandCryogenicThermalShock"2)Underwriter'sLaboratoriedReportNo.R6802-6A,FileNo.X611"MasticCoatingAppliedToAW14X228SteelColumn"
DearMr.DelFavio:
Werecommendthataminimumthicknessof0.5inchesdryofTHERMO-LAG330-1SublimingMaterialbeusedonbothsidesofthiscovertolimitthemaximumtermperatureriseofthe'steelto1000FwhenexposedtoanincipentASTME1190typefireenvironment.Ifdirectspraymethodsareemployed,pleaseusetheprocedurescontainedinTSI'sTechnicalNote80181entitled:"THERMO-LAG330SublimingFireBarrierSystemsApplicationProcedures",RevisionIV,datedJune1983.ThisminimumthicknessrecommendationcanalsobeprovidedbytheuseofTHERMO-LAGPrefabricatedPanelsina3hourfirerateddesign.Ifyouhaveanyquestions,donothesitatetocontactme.Yourstruly,R.A.Lohman-Manager-QualityAssuranceRAL/mlsTHERMALSCIENCE,INC.~3260BRANNONAVE.~ST.LOUIS,MO63139~(314)352-8422Telex:Domestic44-2384~Overseas209901~Telecopier(314)352-5626 UNDERWRITERSLABORATORIESINC.333PflhCFEEhROADNORTIIIIROOK.II.Ul'OlctKO62anindependent,not;for-p~oj7torganizationtestingforpublicsafetyR6802Northbrook,ILJanuary9,1979TSI,Inc.3260BrannonAve.St.Louis,NO63139Attention:R.Feldman
Subject:
MASTICCOATINGS(CDWZ)Gentlemen:WeareenclosingonecopyoftheReportrevisioncoveringtheabovesubject.Therevisionconsistsofthefollowing:Revisedillustration,6forreportissued6-5-78,dated1-8-79.Verytrulyyours,4.8.Pd'.D.PalikijFireProtectionDept.GP:pgencl.
I~~~PLOTOFBESTFITEQUATIONFOR3HR,RATING~~~~~~~~~I~~~~1I~!I~ill!i~t'".I!iiiiii::iiiliiiii!iiiiiI:iiI.:il:ii!IIII~I.~II~~II~~le::~:~~\~~~~~~~~~~eI!'::j":I:::-:':-:.i-::::l:i::I,~~~~iiii!!jj!I;I!:~I~'I~Il;II""iil}I:Iil:.i)lii!!I!!!:!!!>1'~Ie~it~~~~I'.Is!ii!I'!!:!I!~I~~~~~~~~~~-<<Ie~~~~~~~~~~~~e~~~~~~~e~~I~~~~I~~~~II<<~J>>~~I~~~i~~~~~~~~~I~~I~~~~~I~lI~I'8%II~r~I~I'a~~~::il~~I.<<>I~I~Ite~e~~e~IJ>>tlt~~~~~~ela~lel<<I~~~~~e~~~III~II~I~II~~~I~~~L.I~~~~~~I~~~e0.50Jal~"'ll"-IIiiiil=-.~ll~:---I:::II:::I::::~~~Wn%II~0.493-1/2in.~Y=0.000471X1.32~~~TmNNLLJI--qIe~'>>tt'~a~I~l~<<I025LLJ1~~!!l0.1-~I~~~~>t~~~~>>.IIJtiIeJt~~~~~~I~\+I~$~>>>Iati>talli<<IIi~~J,I>>~<<<<~e~~~~~I~~lle~~Itl,~lt~~~I~~e~I:II't~'II~ete~~~te~~I~~t~~~\I~>~~I>I!lettl~~~I~'>I::I'IIij!Ie>e:li!I.I:lli~t~>>t~II~la)JI-'.~~::I:~~~~IJ"TM-]CATE'I>>JagI~a'~~~>-I'I'e~'~a,J'eeJt~I~I,i>e10100200I~eI~,'.I~'I.'0TIHE,HINUTESILL.6R6802.-6A UNDERWRITERSLABORATORIESINC.CHCACO~HORTHSROOK,ILLXKLVILLK.KY~SA,hTAC'LARA.CAUF.anindependent,not-for-projitorganuatimttestingforpuhhcsafetyFileR6802-6AProject77NK422June5,1978REPORTonMASTICCOATINGAPPLIEDTOAM14X228STEELCOLUMNTSI,Inc.St.Louis,MissouriCopyrightC1978Underwriters1.aboratoriesInc.UnderwritersLaboratoriesInc.authorizestheabovenamedcompanytoreproducethisReportprovideditisreproducedinitsentirety.
FileR6802-6APageG1Issued:6-5-78GENERALThesubjectofthisReportisthefireresistanceClassificationofaW14X228steelcolumnprotected,withType330masticsublimingcoatingappliedtoadryfilmthicknessof15/32in.asdescribedinthesectionentitled"ProtectionofTestAssembly,"andasshowninILL.1.Theobject,ofthisinvestigationwastoestablishafireresistanceClassificationforthecolumndescribedhereinbymeansofafireendurancetestconductedinaccordancewiththeStandardforFireTestsofBuildingConstructionMaterials,UL263(ASTME119,NFPANo.251).Inadditiontothefireendurancetest,thesubmittorrequestedthatweconductanengineeringevaluationofthetestsdescribedinthisReportandtheircolumntestsdescribedinReportsR6802-3andR6802-4,todeterminetheminimumdryfilmt,hicknessoftheType330masticcoatingnecessarytoafforda3hrfireresistanceratingwhenappliedtoaW14X228steelcolumn.Thefiretestwassupplementedbyothertestsandexaminationstofurnishinformationregardingthecompositionandphysicalpropertiesofthematerialsusedandtodeterminethepracticabilityofhandlingandapplyingthecoating.GDP/RMB:plh
,CeFileR6802-6APage1Issued:6-5-78DESCRIPTIONEXAMINATIONOFMATERIALS:Thematerialsusedinthetestassemblyaredescribedbelow.Column-ThecolumnusedinthetestassemblywasaM10X228steelsectionmeasuring8ft,3in.longbet.weenthetopandbottomconcretecaps.Primer-TheprimerwasacorrosioninhibitingmodifiedalkydprimermanufacturedbyTSI,Inc.GlassFiberGauze-Theglassfibergauzewasembeddedinthemasticcoatingtoprovidereinforcement.Thegauzewas12in.wideandweighed1.70ozpersqyd.MasticSubliminCoatin-ThemasticsublimingcoatingmaterialwasmanufacturedbyTSI,Inc.anddesignatedThermoLagType330.Thecoatingmaterialwassuppliedin55galsteeldrums.ThemasticcoatingispresentlyClassifiedbyUnderwritersLaboratoriesInc.underFollow-UpService.Thecompositionandotherpropeitiesofthemasticcoatingareconsideredproprietaryandareonfileat,theLaboratories.PROTECTIONOFTESTASSEMBLY:ThesteelcolumnwasprotectedbyworkmenintheemployofthesubmittorundertheobservationofmembersoftheLaboratories'taff.Thecolumnsurfaceswerewipedwithasolventtoremovesurfacecontaminates.Theprimerwassprayedontothecolumnusinganairgun.7hemasticcoating,whichwassuppliedinsteeldrums,wasspray-appliedtothecolumnsurfacesusingequipmentdesignedforsuchpurposes.
FileR6802-6APage2Issued:6-5-78Themastscoatingwasappliedtothecolumninseveralcoatsatthicknessesofapproximately1/32to1/16in.Eachcoatwasallowedtobecometackybeforethefollowingcoatwasapplied.Afterthecoatinghadbeensprayedtoanapproximatethicknessof13/32in.,theglassfibergauzewaspressedintothecoatingovertheentirecolumnwithadjacentsectionsofthegauzeoverlapped1to3in.Thegauzewaslightlyrolledwithapaintroller.Approximately3/32in.ofadditionalcoatingwasthenappliedtothecolumn.Thecoatingwasappliedtoawet'ilmthicknessofapproximately1/2in.asdeterminedbyseveralmeasurementstakenaftersprayinghadbeencompleted.Thewetanddrydensitiesofthemasticsublimingcoatingweredeterminedbyapplyingthematerialata'representative.thicknesstoa2by2ftsteelplate.Thewetdensitywasobtainedbyweighingtheplateimmediatelyaftersprayingandthedrydensitywas.determinedusingtheairdriedconstantweightofthesteelplateandcoating.Theaveragewetanddry'densitiesofthemasticcoatingwere85.8and61.2pcf,respectively.Whilethemasticcoatingmaterialwascuring,severalcrack'aryinginwidthfromhairlineto1/8in.formedattheintersectionofwebsandflangesofthecolumn.Thesecrackswere~repairedninedaysafterthesprayinghadbeencompleted.Thefinaldryfilmthicknessof15/32in.wasdeterminedonthebasisof108measurementstakenonthecolumn40daysafterthesprayinghadbeencompletedandthematerialhaddriedatroomtemperaturetoaconstantweightcondition.Individualthicknessreadingsvariedfrom11/32to19/32in.TheappearanceofthecolumnassemblybeforethefireendurancetestisshownonILL.2.GDP/RMB:plh FileR6802-6APageTl-'1Issued:6-5-78TESTRECORDN01FIREENDURANCETEST:ThistestwasconductedinaccordancewiththeStandardofUnderwritersLaboratoriesInc.forFire.TestsofBuildingConstructionandMaterials,UL263(NFPANo.251,ASTME119)-DESCRIPTIONOFSAMPLE,Priorto-placingthecolumnassemblyinthefurance,severalcrackswereobservedinthemasticcoatingateachwebandflangeintersection.Thesevariedinwidthfromhairlineto1/16in.andwere1to2in.long.METHODThecolumnwasplacedinthefurnaceandexposedtoflamesofcontrolledextentandseverityinaccordancewiththeStandardTime-TemperatureCurve.Eightthermocouples,distributedaroundthecolumnintwolevelsasshownonILL.3,measuredthetemperaturesinthefurancechamber.Thetemperaturesofthesteelcolumnweremeasuredby14thermocoupleslocatedasshownonILL.4.Throughoutthetest,observationswremadetonotethecharacterofthefire,thecondition.oftheexposedsurfaceofthecolumn,andallotherdatapertinenttothefireresistanceperformanceofthecolumn.CharacterandDistributionoftheFire-Thefurnacefirewasluminousandwelldistributedduringthetest,andthetemperaturesrecordedinthefurancechamberfollowedtheStandardTime-TemperatureCurveasdefinedintheStandardforFireTestsofBuildingConstructionandMaterials,UL263,andasshownonILL.3.
FileR6802-6APageTl-2Issued:6-5-78ObservationsDurinTest-Thefollowingobservationsweremadeduringthefiretest.Allreferencestodimensionsareapproximate.TestTime,MinObservationsThemasticcoatingonthecolumnflangesis'urningblackanddevelopingblisters.Thecolorofthemasticcoatingonthecolumnflangesisblack.Themasticcoatingonthecolumnwebisturningblackanddevelopingsmallblisters...'IThemasticcoatingisblackincolorandcontainsnumerousblistersovertheentirecolumn.Surfacecracksareformingaroundblisterslocatedonthecolumnflanges.Lightflamesareemittingfromthefissuresinthecoating.6.5Flaminghasstopped.Coatingisflamingagain.wide.Thecracksare1/8to1/4in.10'Themasticcoatingisbowingout1/8to1/4in.fromthecracks.Smallareasofthecoatingareturning.tanincolor.Themasticcoatingismostlytanincolor.The'coatingcontinuestoemitflames.Atriangularshapedareaofthemasticcoatingi'sdelaminatingfromthenorthflange2ftbelowthecolumncap.'Theaffectedareameasures12in.inlength,:3to6in.wideand1/4in.thick.
FileR6802-6APageTl-3Issued:6-5-78TestTime~MinObservations25Thecoatingsurfacecontinuestoflameandthecracksarenow1/8to1/2in.wide.Thecoatingisdelaminatingatseveralareasonthewebarea.30Smallpiecesofthecoatingmaterialarefallingfromthecenterareaofthenorthflange.Flamescontinuetoemanatefromthecracks.35Thecoatinghasdelaminatedfromseveralareasonbothflanges.Averagedepthofthedelaminatedmaterialis1/8in.,60Thesurfaceofthecoatingmaterialcontinuestoflame.Thematerialhasbowedout2to0in.fromthesouthflange.Thecoatingmaterialismostlyrustcoloredwithtanareasadjacenttothecracks.Thecoatingisnolongerdelaminatingfromthenorthflange,butcontinuestoflame.7085100Thecoatingisbecomingwhiteincolor.Lightflamescontinuetoenamatefromthecracksinthecoating.Lightflamingcontinues.Thecracksarenow1/8to1in.wide.110Thedepthoftheswellingonbothflangesis1-1/2to23.n~120Thecol'orofthemasticcoatingismostlywhiteandcontinuestoemitflames.Hostcracksare1/8to1-1/2in.wide.
FileR6802-6APageTl;4Issued:6-5-78TestTimep'MinObservations130Lightlazyflamescontinuefromthecolumnwebareas.140Lightflaroescontinuetoemitfromthecoatingattheintersectionofthecolumnwebandbothflanges.150160Thecracksincoatingareclosingduetoswellingofthematerial.Thefiberglassmeshisvisibleonseveralareasofthecoating.Allflaroinghasstoppedandthecoatingiswhiteincolor.IWidthofthecracksattheintersectionofthecoluron4ebandbothflangesis1to1-1/2in.170Cracksatwebandflangeintersectionare1to2in.wide.188Firetestterminated.TemeraturesOfTheColumn-ThetemperaturesthatdevelopedduringthefiretestandthelocationofthethermocouplesatthevariouslevelsareshownonILL.4.Limitingteroperaturesarereachedwhentheaveragetemperatureatanyonelevelexceeds1000Foranyindividualtemperaturereadingexceeds1200F.Thelimitingaveragetemperaturewasreachedat172rainbythethreethermocouples'ocatedatLevelB.Theindividualtemperaturewasreachedat187min.STUDYFORCLASSIFICATIONPURPOSES:AsdiscussedintheSectionGeneralofthisReport,thesubmittorrequestedthatanengineeringevaluationbeperformedtodeterminetheminimumdryfilmthicknessofmasticcoatingrequiredtoafforda3hrratingwhenappliedtoaW14X228structuralsteelcolumn.
FileR6802-SApageT1-5Issued:6-5-78IAsummaryofthecolumntestresultsincludedinthisengineeringevaluationisshownbelow:~ReortR6802-3R6802-4R6802-6AHaterialThickness,In.5/321/415/32OccurrenceOfLimitingTemperature,Min+77127172+-Limitingaveragecross-sectionaltemperatureof'000Fused.Todeterminethethicknessofthemasticcoatingrequiredforthe3hrrating,acomputeranalysisoftheabovematerialthicknessesandtimetoreachthelimitingtemperatureswasobtained.Basedupontheresultingequation,Y=0.000471xitwasdeterminedthataminimumthicknessof1/2in.wouldafforda3hrrating.ThetestdataandtheplotoftheequationareshownonILL.6.Asafetyfactoryof8percent(14min)wasusedtodeterminetheabovethicknesssincetheequationisanextrapolationoftestdata.GDP/RMB FileR6802-6APageC1Issued:6-5-78C~CONCLUSIONSThefollowingconclusionsrepresentthejudgementofUnderwritersLaboratoriesInc.basedupontheresultsoftheexaminationandtestsconductedintheReport,astheyrelatetoestablishedprinciplesandpreviouslyrecordeddata.FIRERESISTANCE~PROPERTIES:Itisjudgedthata1/2in.thicknessofmasticcoating,appliedasdescribedinthisReportwillafforda3hrratingwhenappliedtoastructuralsteelcolumnwhosesizeisequaltoorgreat'erthanaM14X228withamin'imumflangethicknessof1-11/16in.,aminimumwebthicknessof't-1/16in.,andaminimumcrosssectionalareaof67.06sqin.Theassembly,insummarizedformasshown.ontheindividualdesignillustrationincludedinthisReport,willbeillustratedintheFireResistanceDirectoryasColumnDesignNo.X611.ThisClassificationisbasedonthetemperaturelimitationsof1000Faverageand1200Fmaximumallowableasdescribedunderthe"ConditionsofAcceptance"forstructuralsteelcolumnsoftheStandardofUnderwritersLaboratoriesInc.forFireTestsofBuildingConstructionandMaterials,StandardUL263(ASTME119,NFPANo.251).PRACTICABILITY:Themasticcoatingandglassfibergauzeofthetypeusedforthisinvestigationcanbereadilyappliedtosteelcolumnsbyexperiencedworkmenusingproperequipment.MaterialsandsprayingproceduresinaccordancewiththosedescribedinthisReportaresignificantfactorsinthefireresistanceofthisconstruction..CONFORMITY:l'hisconstructionwastestedinaccordancewiththeStandardforFireTestsofBuildingConstructionandMaterials,UL263{ASTME119,NFPANo.251)~
FileR6802-6APageC2Issued:6-5-78FOLLOM-UPPROGRAM:ThemasticcoatingasdescribedhereiniscurrentlycoveredundertheClassificationandFollow-UpServiceofUnderwritersLaboratoriesInc.UndertheService,themanufacturerisauthorizedtousetheLaboratories'lassificationMarkingonsuchproductswhichcomplywiththeFollow-UpServiceProcedureandanyotherapplicablerequirementsofUnderwriters.LaboratoriesInc.OnlythoseproductswhichproperlybeartheLaboratories'lassificationMarkingareconsideredasClassifiedbyUnderwritersLaboratoriesInc.TheClassificationMarkingusedon,themasticcoatingisillustratedbelow:VNDERMRITERSLABORATORIESINC.RCLASSIFIEDMASTICCOATINGSFIRERESISTANCECLASSIFICATIONDESIGNNO.X611SEEULFIRERESISTANCEDIRECTORY
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>)GUIDEBXUVFIRERESISTANCERATINGSX611ACARDDESIGNNO.X611RATING-3HR.~~~,~~~~~~~~~'J~'i~I00'~~~~~'li~~~~-.~i-~~~-t.~~~~I~'~a~g~y~~~r.~~~~yO~~J0~~gf~=R6802-6A FileR6802-6AGuideBXUVFireResistanceRatingsJune5,1978(X611-BCard)(ContinuedFromX611-ACard)Mastic.Coatins>>-Coatingmixedthoroughlyandsprayappliedinseveralcoatsforadryfilmthicknessof1/2in.tocolumnsurfaceswhich,mustbefreeofdirt,loosescaleandoil.Columnsurfacestobeprimedwithamodifiedalkydprimer.Glassfibergauze(Item2)pressedintoroatingpriortoapplicationoffinalcoatandlightlyrolledinplacewithapaintroller.Coatingmayshrinkcausingcracksduringcuring.Thesecracksshallbefilledwithadditionalmasticcoating.TSIInc.-Type330.Investigatedforexteriorandinterioruse.Forexterioruse,Type350topcoattobeappliedovermasticcoatingatarateofapproximately150sqftpergal.2.,GlassFiberGauze-Nominally12in.wide,1.70ozpersqyd.Embeddedinmasticcoatingaroundentirecolumn.SteelColumn-MinimumsizeofcolumnaW14X228,withoutsidedimensionsof16by15-7/8in.,aflangethicknessof1-11/16in.,awebthicknesspf1-1/16in.,andacross-sectionalareaof67.06sqin.>>-BearingtheULClassificationMarking.
FileR6802-6APageC3Issued:6-5-78Reportby:G.D.PALIKIJEngineeringAssistantFireProtectionDepartmentReviewedby:R.M.BERHINIGEngineeringGroupLeaderFireProtectionDepartmentSUBMITTEDBY:GDP/RMB:plhG.T.CASTINOManagingEngineerFireProtection