APPLICATION MANUAL - Viscotaq · This application manual is valid for all VISCOTAQ applications unless otherwise specified. VISCOTAQ products have been developed for the protection

APPLICATION MANUAL

2 Kleiss & co bv - The Netherlands - Phone +31-78-629 1313 – Fax +31-78-629 1314 - Mail [email protected]

CONTENTS

1. IntroductiontoVISCOTAQ

2. Productoverview

3. Applicationandtestingspecifications

4. Storageconditions

5. Productcombinations

6. Certificationand40yearswarranty

7. Repairofdamagedpipelinecoatings

8. Coatingofrisers

9. ApplicationofVISCOSHIELD

10. Coatingofnewpipeswithweldedseams

11. Coatingofgirthwelds

12. Coatingofundergroundflangesandexposedstructures

13. Protectionofseals,boltsandflangeapertures

14. Sealingofpipeandcablewallconduits

15. Protectionofoffshorerisers

3Kleiss & co bv - The Netherlands - Phone +31-78-629 1313 – Fax +31-78-629 1314 - Mail [email protected]

Introduction and general properties

ThismanualinformsyouontheapplicationofVISCOTAQproducts.This application manual is valid for all VISCOTAQ applicationsunlessotherwisespecified.

VISCOTAQ products have been developed for the protectionagainst corrosion of underground and aboveground substrates.VISCOTAQ products have also been developed for sealing pipeandcableconduits,apertures,holesandtankchimesagainst thewaterinfiltration.

VISCOTAQ products can be used for the

• Coatingofpipes• Coatingofrisers• Coatingofflanges• Coatingofmanholes• Coatingofvalves• Coatingofoffshorerisersandpillars• Underwatercoatingofrisers• Coatingofweldedsockets• Repairofalltypeofcoatings• Sealingofpipeandcableconduits• Sealingoftankchimes• Sealingofpipecasings

VISCOTAQ will adhere to virtually any existing coatings :

• VISCOTAQcoatings• Bitumencoatings• Bitumencoatingscontainingasbestos• AlltypeofpolymericcoatingslikePE,PP• Polyurethanecoatings• Epoxycoatings• Concretecoatings

In order to obtain the best performance of VISCOTAQ productsit is important that there is no condensation present on thesurface to be coated or on or between other coatings (layers).It is furthermore advised that the surface temperature of thesubstratetobeprotectedisaminimum3C/37.4Fabovethedewpoint.Moreover it isadvisedtoalwaysblastthesurfacetoanearwhitemetallevelSA2-1/2. IfblastingofthesubstratecannotbeaccomplishedaminimumsurfacepreparationcanbeachievedbymachinebrushST2orSP3.

Chapter 1: Introduction


Chapter 2: Product Overview

VISCOSEALANT is a viscous-elastic paste typematerial for thesealing of pipe and cable conduits against the infiltration ofmoisture and gases. Moreover VISCOSEALANT can be usedto seal flange apertures, tank chimes, transformer chambers,swimming pools, sewage treatment plants, air conditioningsystems, etc. VISCOSEALANT is a 100% inertmaterial and hasan immediate adhesion to wet and dry surfaces of most allundergroundandabovegroundsubstrates.

VISCOWRAP-HT is a viscous-elastic self healing coat wrap forthe protection of underground and aboveground substratesagainstcorrosion.VISCOWRAP-HTcanbeusedinenvironmentsor on substrateswith a surface temperature up to 71 C/160 F.Thematerialisavailableinseveralwidth/lengthcombinations.

VISCOWRAP-HDisaviscous-elasticcoatwrapfortheprotectionofundergroundandabovegroundsubstratesagainstcorrosionin situations where heavy horizontal and vertical shear loadsare expected or where backfill material contains stones. Thematerial can be used in environments or on substrateswith asurface temperature up to 50 C. The material is available inseveralwidth/lengthcombinations.

VISCOPASTE-HT is a viscous-elastic self healing paste for theprotectionofundergroundandabovegroundsubstratesagainstcorrosion. VISCOPASTE-HT is designed to protect voids anduneven surfaces against corrosion and is also used to preventwaterinfiltrationatcasingends,pipepenetration,prefabjoints,etc.Thematerialcanbeusedinenvironmentsoronsubstrateswith a surface temperature up to 71 C/160 F. The material isdeliveredinrollformandcanbecuttosize.

EZ-WRAP is a viscous-elastic self healing coat wrap forencapsulation of substrates and for the protection ofundergroundandabovegroundsubstratesagainstcorrosionandwaterinfiltration.UnlikeVISCOWRAP,whichhasapolyethylenetopcoat,EZ-WRAPhasapolyestertopcoatthatcanbepainted.EZ-WRAPcanbeused inenvironmentsoronsubstrateswithasurfacetemperatureupto65C/159,8F.Thematerialisdeliveredinrollsofdifferentwidth/lengthcombinations.

VISCOSLEEVE is a viscous-elastic heat shrink sleeve for theprotection of girth welds in pipeline systems. VISCOSLEEVE isapplied without a primer. Pre-heating of the field joint is notnecessary. VISCOSLEEVE is wrapped around the joint withoutleaving space underneath and shrinks by the application of amoderateflame.


VISCOTAQ PVC OuterWrap isusedforthemechanicalprotectionofVISCOTAQmaterials.Thematerialisavailableinrollsofdifferentwidth/lengthcombinations.PVCOuterwrapisadvisedforbendedpipelines<4”.

VISCOTAQ PE OuterWrap is used for themechanical protectionofVISCOTAQmaterials.Thematerialisavailableinrollsofdifferentwidth/lengthcombinations.

VISCOTAQ PE ShrinkWrapisusedfortheHeavyDutymechanicalprotectionofVISCOTAQproducts.Thematerialisavailableinrollsofdifferentwidth/lengthcombinations.Thematerials iswrappedhand tight around the VISCOTAQ product and shrinks by theapplicationofamoderateflame.

VISCOSHIELD isaUVcuringpolyesterinrollform.Whenuncuredthematerial is soft and pliable. When cured thematerial offersa RockShield protection against heavy mechanical impact. Thematerialisavailableinrollsofdifferentwidth/lengthcombinations.ThematerialsiswrappedhandtightaroundtheVISCOTAQproductandiscuredbytheapplicationofUVlight.VISCOSHIELDissuitableformechanicalprotectionofVISCOWRAPduringhorizontaldrilling(HDD).




VISCOBLOCK is a special fire retardant mortar applied incombination with VISCOSEALANT in pipe and cable conduits.VISCOBLOCKenhances thepressure resistanceofVISCOSEALANTagainsttheinfiltrationofmoistureandgases.

VISCOFOAMisdeliveredinrollformandactsasabarrier/backingwheninjectingVISCOSEALANTintoaconduit.

VISCOBLOCK

VISCOFOAM


Read this chapter before using VISCOTAQ products.

This specification covers the application and field test requirements for VISCOTAQ Viscous ElasticCoatingProducts as anexternal corrosionbarrier for abovegroundandburiedpiping,girthwelds,fittings,bends,risersandflangeswithservicetemperaturesupto71C/160F.

This specification applies to coating of new pipe or repairs to previously coated pipelines. Theapplication procedures and product specifications for the use of the VISCOTAQ products shallbe considered an integral part of this specification and the Contractor shall have a copy of thisdocumentationonsitepriortothecommencementofconstruction.

3.0 - CONFLICT OF DOCUMENTS

3.0.1ThisspecificationshallnoteliminateconsiderationoftheContractor’sstandardpractices,whichmay be approved by the Owner if found to be equivalent or superior to the following specifiedrequirements.

3.1 - REFERENCE DOCUMENTS

3.1.1Thefollowingdocumentsorreferencescanbereferredtoinconjunctionwiththisspecification:

Steel Structure Painting Council (SSPC)SSPC-SP1 SolventCleanSSPC-SP2 HandToolCleanSSPC-SP3 PowerToolCleanSSPC-SP6 CommercialBlastCleanSSPC-SP10 NearWhiteMetalBlastSSPC-VIS1 VisualStandardforAbrasiveBlastCleanedSteel

NACE International (NACE)NACE-RP0274HighVoltageElectricalInspectionofPipelineCoatingsPriortoInstallation.

Canadian Standards Association (CSA)CSA-Z245.20 ExternalFusionBondCoatingforSteelPipeCSA-Z245.21 ExternalPolyethyleneCoatingforPipeCSA-Z662 Oil&GasPipelineSystems

Chapter 3: Application and testing specification


3.2 - DEFINITIONS

Withinthebodyofthisspecification,thefollowingdefinitionsshallapply:

• Contractor:TheContractororSubcontractorresponsiblefortheprotectivecoatingworkincludingallsurfacepreparationandapplicationofthespecifiedcoating(s).

• Cut Back: Endofpipe that isnotcoated toallow for jointing.Usuallyabout150mm/6” to175mm/7”longoneachendofthepipetobejointed;canbeupto200mm/8”long.Oncetheweldiscompleted,thisareamustbecoatedwiththespecifiedjointcoatingproduct(s).

• Holiday:(AlsocalledaJEEP),apinhole,scrape,gouge,orotherdamagetotheprotectivecoatingthatexposesthepipeorsubstratetotheenvironment.

• Mainline Coating:Theplant-appliedlinepipecoatingtowhichthecoatingmaterialsmustadheretoandbecompatiblewith.

• Manufacturer:Kleiss&cob.v/AmcorrProducts&Services.• NACE:NationalAssociationofCorrosionEngineers.• Oil-Free Solvent:Anon-petroleumbasedcleaner that removesoil&grease,evaporatesquicklyanddoesnotleaveanoilyresidue.

• Owner:TheOwnerorOperatorofthepipelineonwhichtheworkisbeingperformed.• Owner Representative: The Construction Coordinator or third party Inspector designatedby appropriate Owner authority. This person is responsible to ensure that this specification isfollowedbytheContractor.

• SSPC: TheSocietyforProtectiveCoatings.• Shall, Must, Will:Mandatoryrequirementsthatmustbefollowedunlessawaiverisgranted.• Should:Apreferredorrecommendedaction.

3.3 - MATERIALS AND EQUIPMENT

VISCOTAQisanamorphousapolarpolyolefinintheformofarollorpaste.Foradditionalmechanicalprotectionandsoil resistance, itshouldbeover-wrappedwithatensionedPEorPVCouterwraporVISCOSHIELD.

3.3.1MaterialstobesuppliedshallbeasspecifiedbytheOwner.

3.3.2ApprovedmaterialsshallbeusedbytheContractor.

3.3.3Contractorshallensurethatthecrewisequippedwiththerequiredequipmentandnecessaryexpertisetocompletethefullscopeofwork:

• AbrasiveblastequipmentincludingaCompressorequippedwithoilwatertrapsandacceptableabrasivemedium(sandorgrit).

• Anglegrinderandabrasivediscstoachievepowertoolcleanwhererequired.• Filesforremovingweldspatterandotheranomalies.• 80gritsandpaperforrougheningadjoiningplant-appliedcoatings.• Oil-freeSolventandlint-freewipingrags.• Knivesand/orscissorsforcuttingandtrimming• Temperatureandhumiditymonitor(s)forambientconditionsandacontactpyrometerforreadingsurfacetemperatures.(Aninfra-redpyrometerisnotacceptable).

• Holidaydetector



3.4 - GENERAL REQUIREMENTS

3.4.1Apre-jobmeetingshallbeheldpriortostartofwork.RequiredattendeesshallbetheOwner’sRepresentative,includingtheThirdPartyInspectorandtheContractor’sJobSuperintendent.

3.4.2 The Owner shall approve all coating materials, installation procedures, equipment andqualificationsofapplicationpersonnel.

3.4.3TheContractorshallensureandbepreparedtodemonstratethatallpersonnelapplyingexternalpipe coatings are knowledgeable and trained in the application of the coating(s) being used. The40 yearswarranty is only applicable in caseswhere thematerial is applied by certified applicators,havingcertificatesissuedbyKLEISSorAMCORRandiswitnessedandinspectedbyacertifiedcoatinginspector.

3.4.4 The Contractor shall demonstrate that the proper equipment is used for safely handlingcoatedlinepipetopreventdamagetothecoating.Allpersonnelshallbeknowledgeableinthesafeinstallationofcoatedpipelinesusingtechniquestominimizecoatingdamage.

3.4.5Prior to installation, theContractor shall ensure that storageof allmaterials ismaintainedataminimumof10°C/50°Fandprotectedfromtheelements.

Coating of Pipe and Fittings:

• ThesurfacesofpipeandfittingsshallbecleanedinaccordancewiththespecifiedrequirementsofVISCOTAQ-HT.

• Thecoatingsystemshallbeappliedinaccordancewiththeapplicationprocedures.• Forrepairstocoatedpipeorfittings,thedamagedcoatingshallberemoved.• Forburiedflanges,theapprovedmaterialsshallbeappliedinaccordancewiththeManufacturer’srecommendations.

• Piperisersandbendsshallbecoatedtoaminimumheightof500mm/1-1/2ftabovethesoilairtransition.

3.5 - SURFACE PREPARATION

3.5.1Allsurfacesshallbecleanedofmud,milllacquer,wax,tar,oil,greaseorotherforeigncontaminantstoSolventCleanSSPC-SP1requirements,usinganOilFreeSolvent(Acetone,DenaturedAlcohol,andIsopropylalcohol).NOTE : Industrial grade citrus based (d’Limonene) products are not approved foruseasanoilfreesolvent.

3.5.2Existingdamagedcoatingshallberemovedbeforeoraspartofthesurfacepreparationprocess.

3.5.3Newand repairedpipe,bendsand risers, thepipe surface shallbeabrasiveblasted toSA2,5/SSPC-SP10(NearWhiteBlast)toremoveallmillscale,rustorforeignmatterand/ordirt.Ablastprofileof50μto100μ/2to4milsshallbeachieved.Burrsandweldsplattershallberemoved.

3.5.4Forfittings,flangesandhardtoreachareas,thesurfaceshallbecleanedtoaminimumofST2/SSPC-SP2(HandToolClean),howeverwherepossibletoST3/SSPC-SP3PowerToolClean)

3.5.5Theoverlapareaonanexistingmainlinecoatingshallalsobecleanedwithanoil freesolventandabraded tominimumST2/SSPC-SP2 (HandToolClean), allowing for aminimumof 100mm/4”overlap.Theabradingshouldbeaccomplishedbyusing80gritsandpaper.

3.5.6Cleanedareashallbeblowndownwithcompressedairorbrushedtoremoveremainingdust.

3.5.7Allcleanedareasshallhaveprotectivecoatingappliedbeforeendofshift. Ifacleanedsurfacedoesnotgetcoated,itshallbere-cleanedonthenextshift.



3.6 - APPLICATION OF VISCOTAQ-HT TO PIPE, BENDS & RISERS

3.6.1 TheVISCOTAQ-HT shallbe kept in a climate controlledwarehouse to avoid freezingand shallbekeptinawarmarea,suchasthecabofatruckwhileontheright-of-waytomaintainaminimumtemperatureof10°C/50°F.

3.6.2 Immediately prior to the application of VISCOTAQ-HT, ambient conditions and surfacetemperature shall be measured to ensure the surface to be coated is above +5°C/41° F, relativehumidityisbelow80%andambienttemperatureisatleast3°C/37,4°Fabovethedewpoint.

3.6.3WhiletheVISCOTAQ-HTisratedashighas71C/160Fservicetemperature,theproductshallnotbeappliedtoanoperatinglineattemperaturesabove71C/160F.

3.6.4TheVISCOTAQ-HTshallbespirallywrappedwithtension,at theManufacturer’s recommendedoverlap ofminimum1 cmor½ “. Thewrapping process shall begin at least 150mm/6” over theexistingcoatingandextendatleast150mm/6”ontothetailendoftheothercoatedsection.

3.6.5 The Tape shall be gently smoothed out by hand to ensure there are no wrinkles, folds, orentrappedair.Ensurethatthetapehascompletelyadheredtothesubstrate.

3.6.6Ifspecified,theVISCOTAQ-HTshallbeover-wrappedwithaManufacturespecifiedPEouterwrap,appliedundertensionata50%overlap.

3.6.7ThecontractorshalluseaUVresistantouterwrapapprovedinwritingbyKLEISS/AMCORR.

3.6.8Inallcases,theouterwrapshallbeappliedleavingavisibleportion,approximately6mm/¼”,ofVISCOTAQ-HTexposedatbothendsofthewrappedsection.

3.6.9 For application to flanges or couplings, the Contractor shall follow the relevant applicationprocedureinthismanual.

3.7 - APPLICATION OF VISCOTAQ- HT AT ABOVE-GROUND TRANSITIONS

3.7.1Theapplicationshallbeginatleast500mm/18”belowsoil/airtransitionandcontinuingtoatleast500mm/18”abovesoil/airtransition.

3.7.2 The VISCOTAQ-HT shall be over wrapped with a UV Resistant PE Outer wrap, applied undertensionwithaminimum50%overlap.

3.7.3TheUVouterwrapshallbeappliedleavingavisibleportion,approximately6mm/¼”,oftheVISCOTAQ-ST/HTexposedatbothendsofthewrappedsection.

3.7.4Refertotheapplicationprocedureinthismanualforvisualreferenceofthiswrappingprocess.



3.8 INSPECTION

3.8.1TheContractorshallberesponsibleforqualityassuranceoftheVISCOTAQ-HTCoatingSystem.

3.8.2ThequalityassuranceprogramshallbeapprovedandoverseenbytheOwner’sRepresentativeorathirdpartyInspectorasappointedbytheOwner.

3.8.3VisualInspection

• TheContractorshallprovideaqualified individualasa leadhandor foremantoensurethat thecorrectcoatingmaterialsandproceduresarebeingused.

• Therequiredminimumtoolsandequipmentmustbeonsite.• Therequiredsurfacepreparationhasbeencompleted.• TheVISCOTAQ-ST/HTandOuterwraphavebeenappliedattherecommendedoverlap,iswrinkle-freeandiscompletelyadheredtothesubstrate.

• Ifanyoftheaboverequirementsarenotmet,theVISCOTAQ-HTshallberemovedandre-applied.• Each section of applied product thatmeets the specification shall bemarked by the Inspectorwithawhitepaintmarkervisiblefromtheworksideoftheditch.

High Voltage Holiday Inspection (Jeeping)

• Priortoburial,allcoatedpipeandfittingsshallbeinspectedforholidaysusingACcurrentholidaydetector. Test voltage shall beminimum15 kV 0,000 volts based on a coating thickness of 1,8mm/70mils.Noholidays(jeeps)shallbeaccepted.

• Thehighvoltageholidaydetectorshallcomecompletewithtrailinggroundwire,correctlysizedspring for the pipe diameter, ground spike, wire and clamps for rounding. Never use holidaydetectorswithDCcurrent!

• Onsiteverificationofthecorrectoperationandvoltagesettingoftheholidaydetectorisrequired.• Groundingboththepipemetalandthegroundterminalofthedetectorisnecessarytocompletethecircuit.Thismustbedonethroughadirectwireconnectionorbyconnectingbothtoearthasacommonground(trailinggroundwire).Inarid,sandy,rockyorsnowcoveredareas,wherethereishighelectricalresistivity,adirectwireconnectionbetweenthepipemetalanddetectorgroundterminalshallbemaintained.Whenatrailingwire isusedtogroundthedetector, thewireshallnotbecoiledorknottedandshallbekeptincontactwiththeearth.

• Thewirespringelectrodemustmaintaincontactwiththecoatedsurfaceatalltimeswhentestingisunderway.Anyadheredmaterialssuchasice,snow,dirt,etc.mustberemovedbeforetesting.

• Speed of travel should not exceed a measured walk (1 m /3 ft. per second maximum). Theelectrodeshouldalwaysbeinmotionwheneverthetestingvoltageisapplied.

• Holidaydetectorsmustbekeptcleanandfreeofmoisture.Spare,fullychargedbatteriesandtestmetershallbeavailableonsiteduringtestoperations.

• Wherejeepsarelocatedinthecoatingsystem,theentirecircumferentialringshallbecleanedandover-wrappedwithVISCOTAQ-HT,overlappingthejeeponbothsidesby100mm/4”.



Field Peel Test

• After allowing a minimum of one hour for the VISCOTAQ-HT to set up, the Contractor shallperformrandompeeltests (andthePipelineOwnershall request)toensureproperbondingoftheVISCOTAQ-HT.

• Theprocedureshallbetomaketwocircumferentialcuts,eachat least150mm/6” longand25mm/1”wide,withacleancutacrossthetop.Thetwocutsectionstobepeeledshallbeminimum1mapart.

• Thetopcutshallbepeeledbackwithasharpedgesothatvisegrippliersmaybeattachedtothetab.Thetabshallbepulledata90°angleatameasuredspeedof100mm/4”perminute.

• Thepeel test is a subjectivefield testused toassesswhetherproper adhesion to the substratehasbeenachieved.Thepeel test isdeemedacceptable if theadhesive failscohesively,withthemajorityoftheinnerviscous-elasticlayerremainingadheredtothepipesurface.

• Thepeel test isconsidereda failure ifmostof theadhesiveeasilybreaksaway fromthepipeorplant applied coating surface.Whenmost of the adhesive breaks away from the pipe surface,theVISCOTAQ-HTisdeemedtobepoorlybondedanddefective.DefectiveVISCOTAQ-HTshallberemovedandreplaced.Thepeeltestissuccessfulif70%ofthesubstrate’ssurfaceremainscoveredwithVISCOTAQmaterialafter1hour.

• If thepeel test fails,otherpeel tests shallbeperformed,movingbackwardson thecoatedareauntilapeeltestisacceptedasa“pass”.

• AllpeeltestareasshallberepairedusinganewwrapofVISCOTAQ-HTextending100mm/4”pastbothendsoftheremovedcoating.Afterwaitingaminimumof72hoursbutpreferablymorethan7days, thepeeltestprocedureshallbeconductedwhereby90%ofthesubstrate’ssurfaceshallremaincoveredafterpeeling.

• Ifthecoatingsystemdoesnotmeettherequirementsofthisspecification,theVISCOTAQ-HTshallberemovedandre-appliedinaccordancewiththisspecificationbytheContractor.



VISCOTAQ products

• Storeboxesinanuprightposition.• Bypreferencedonotstackpallets.• Donotstoreattemperaturesbelow10C/50Fzero.• Donotstoreattemperaturesabove30C/86F.• Storeinadryandbypreferenceclimatecontrolledplaceatroomtemperature.• Neverstoretheproductindirectsunlight.

VISCOSHIELD polyester products

• Storeinaventilatedanddryplace.• Donotstoreattemperaturesbelow10C/50F.• Storeatamaximumtemperatureof25C/77F.• Avoidapplicationaftertheshelflifedate.

Chapter 4: Storage Conditions


Chap

ter 5

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APPL

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VISC

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ROLL

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-WRA

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VISC

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ROLL

/SIZ

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VISC

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SIZE

WID

THPIPELINES≤

6”

50mm/2”

50mm/2”

1000mm/40”

PIPELINES≥

8”

100mm/4’

75mm/3”

1000mm/40”

PIPELINES≥

24”

200mm/8”

400mm/16”

1000mm/40”

FLANGES

ANY

BALLVALVES

ANY

GATEVALVES

ANY

RISERS≤

6”

50mm/2”

50mm/2”

1000mm/40”

RISERS≥

8”

100mm/4”

75mm/3”

1000mm/40”

RISERS≥

24”

200mm/8”

100mm4”

1000mm/40”

FIELDJOINTS≤

6”

50mm/2”

50mm/2”

450mm

FIELDJOINTS≥

8”

100mm/4”

75mm/3”

450mm

FIELDJOINTS≥

36”

200mm/8”

400mm/16”

600mm

TANKCHIMES

DEPENDS

RISERSOFFSHORE

DEPENDS

CASINGS-FILLER

CASINGENDSEALS

CONDUITS

FLANGEAPERTURES


VISCOTAQ products are manufactured under ISO 9001 standards.

Audits to our factory are possible in cases where you are an approved and certified vendor or aVISCOTAQenduser.VISCOTAQ products can be supplied with a 40 years warranty. This warranty ensures that onceappliedthematerialwillremaininthesameconditionoveraperiodoftimeof40yearsandwillnotshowanydeviations as from the timeof application. Thematerial propertieswill remain the sameandnotchange.Thematerialwillforinstancenotdeteriorate,notcracknorbecomebrittleorshowmoreorlessmoistureorgaspermeability.The40yearswarrantyisawarrantyforcontinuousmaterialperformance.Thewarrantydoesnotguaranteethatnocorrosionwilloccur,ascorrosionmayoccurdue to unforeseen circumstances like landslides, earth quakes, specificmovements of thepipeline,unforeseensoil stress,unknownchemicals in theground, terroristattacks,changes in thepipelines,changes inpipelineoperations, increasedpipelinetemperatures,etcetera.Thewarrantyguaranteesthatifthecoatingperformancedecreases,newcoatingmaterialwillbesuppliedfreeofcharge.Thewarranty does not cover consequential damages like labor costs, rental of equipment, inspectionservices,excavationworks,etcetera.

The40-yearswarranty isonlyapplicable ifVISCOTAQmaterialshavebeenappliedaccording to theKleiss’s/Amcorr’sinstructionbytrainedandcertifiedapplicants.ThismeansthatallapplicantsshouldhavereceivedaVISCOTAQtrainingbyacertifiedVISCOTAQtrainerandmusthavepassedthistrainingsuccessfully and received a certificate by KLEISS or AMCORR. Moreover the application should bewitnessedandinspectedbyacertifiedVISCOTAQinspectorandtherelevanttestreportsmusthavebeensubmittedtoKLEISSorAMCORRandapproved.

More details about the 40-years warranty you can find on the website www.viscotaq.com or bycontactingLeovanBeugenatlvanbeugen@[email protected]

Chapter 6: CERTIFICATION AND 40 YEARS WARRANTY


Materials necessary

• VISCOWRAP• PEOuterWrap• VISCOSHIELD(ifnecessary)• PVCFoil(ifnecessary)• UVLAMPS(ifnecessary)

General• Damagedcoatingscanbe repairedwithVISCOTAQproducts.Wecallthiscoatingrehabilitation.

• Inmostsituationstheoldcoatingneedstoberemoved.

Preparation • CollecttherequiredamountofVISCOTAQmaterialsneededtoperform the rahabilitation and store them at a location neartheworkingareaabove15C/59Fwherenotrafficorstaffwilldisturb.

• Do not store or expose the VISCOTAQ materials in directsunlightormoisture.

• VISCOTAQ products can best be applied at temperaturesabove15C/59F.

• Thepipelinetobere-coatedshouldbesufficientlyexcavatedandbeeasyaccessiblefromallsides.

• The area from the trench bottom to the lower part of thepipelineshouldbeminimal30cm/12”.

• The working area should be dry and free of obstacles. Usedrainagepumpswherevernecessary.

• Checkwhetherthesurfacetobecoatedisaminimum3C/37,4Fabovethedewpoint.

• Protectthesurfacetobecoatedfromrainandothermoisture

Surface preparation• Removetheoldcoatingfromthesurfacetobere-coated.• ThesurfacecleanlinessmustbeminimumST-2,bypreferenceblastedtoalevelSA2-1/2.

• Thesurfacetobecoatedmustbeclean,dryandfreeoflooseparts,oilandgrease.

• Thetransitiontotheexistingfactorycoatingmustbebeveledtoa45°angle.

• Where the final layer is applied onto the existing factorycoating,thespotmustbedriedwithaburnerwithmoderateflame.

• In case irregularities are found around the repair spot, thecertified inspector or chief operations manager should beconsulted.

• If the coating contains parts of asbestos bitumen, then theapplicableregulationsforremovalmustbefollowed.

Chapter 7: Repair of damaged pipeline coatings



Dew point measurement• Makesurethatduringtheapplicationthetemperatureoftheriserisatleast3C/37,4Fabovethedewpoint.

• Ifnecessaryheatupthesurfaceofthesubstratetobecoated.• Inorder to reduce the riskofupcomingcondensation, applythematerialinonesequencewithoutinterruption.

• ApplyVISCOTAQmaterialifpossibleabove15C/34,7F

Application of VISCOWRAP Inner Wrap• Theexistingfactorycoatingmustbebeveledtoanangleof45degrees (ifapplicable). Incaseof thickcoatings, likebitumenorcoaltarenamel,abridgeshouldbemadeonthebaresteelontothecoatingtransitionwithafirststraightcircumferencewrap. Thiswill facilitate to properwrap over the 45 degreesangle.

• Startwithafirststraightontheexistingfactorycoatingona12o’clockposition.Theoverlapontotheexistingfactorycoatingshouldbeminimal15cm/6”.

• The first circumference wrap must be straight . Than startwrappingasacigarwrap.

• Wrap the VISCOWRAP with tension with a minimum 1 cmoverlap.

• End on the other coating side with a straight wrap . Theoverlapon theothercoatingside shouldalsobeminimal15cm/6”.

• EventualirregularitiescanbefilledwithVISCOPASTE.• Testthecoatingwithaholidaydetectoratminimum15kV.Application of the PE Outer Wrap• PEOuterWrapshallbewrappedwitha50%minimumoverlap.• Thefirstwrapshouldbestraightandthenfollowedbyacigarwrap.

• The last section should end on a 4 o’clock position and beappliedontothepipewithouttension.

• A 6 mm/ ¼”section of VISCOWRAP material should still bevisibleafterthePEOuterWraphadbeenapplied.

• In case the PE Outer Wrap is applied in above groundsituations, the last section of the PE Outer Wrap should beappliedwithouttensionandatthespotwherethelastsectionsisappliedthesurfaceunderneathshouldbelightlyroughenedwithasandpaperandcleanedwithisopropylalcohol.


Application of VISCOSHIELD• VISCOSHIELDisappliedinsituationswhereheavymechanicalimpactscanbeexpected.

• Whennot curedVISCOSHIELD is soft andpliable and canbecut to size. VISCOSHIELDmust always be stored in a climatecontrolled and ventilated location under 25 C/77 F. Thematerial must be stored dry conditions and kept out of UVsunlight.

• VISCOSHIELD cannot be applied at temperatures below 10C/50F.

• VISCOSHIELD rolls can be cut to the required circumferencepipesize.

• Thecircumferenceoverlapisminimum10cm/4”soapre-cutsectionofVISCOSHIELDshouldbe thecircumferenceplus10cm/4”.

• Theoverlapinlineardirectionshouldbeminimum5cm/2”.• RemovetheinnerreleaselineroftheVISCOSHIELDandwrapitontothepipeline.

• Removethetopreleaselinerwhereveranoverlapiscreatedsothatthebarematerial(withoutmembrane)toucheachother.

• After application, theVISCOSHIELD shouldbe squeezedwitha transparent PVC tape or foil that allows sunlight to passthrough.

• EspeciallyatbothendsandontheoverlapthePVCtapeorfoilshouldbewrappedwithmaximumtension.

Curing of VISCOSHIELD• VISCOSHIELDwillcureunderUVlight.• ThestrongertheUVlightthefastercuringwillhappen.• IncasethereisnosunorUVlight,specialUVlampscanbeusedandinstalledondifferentlocationsalongsidethepipeline.

• Whenusingartificial lightalwaysworkwith2ormore lampsandinstallthemonbothsidesofthepipelineatadistanceofmaximum70cm/2ft.

• Usealuminumsheetsunderthepipelineforreflection.

Warning• TheUVlightofthelampsishazardousandcancauseapersontobecometemporallyblinded.

• Always wear special sunglasses in order to protect the eyesfromtheUVlight.

PaintingAfter curing of the VISCOSHIELD the material can be painted ifnecessary. In order to paint VISCOSHIELD, the top membraneshouldberemovedbeforecuring.



Materials Necessary


General• Risers are especially sensitive to corrosion due to a soil/airtransition.

• Alwaysstartwrappingfromthebottomtothetop:theoverlapisthenontopofthepreviouswrapintheupperdirection.

Preparation • CollecttherequiredamountofVISCOTAQmaterialsneededtoperform the rehabilitation and store them at a location neartheworkingareaabove15C/34,7Fwherenotrafficorstaffwilldisturb.


Surface preparation• In case of rehabilitation, remove the old coating from thesurface to be re-coated. The surface cleanliness must beminimumST-2,bypreferenceblastedtoalevelSA2-1/2.


• Aneventual transition toanexisting factorycoatingmustbebeveledtoa45°angle.

• Where the final layer is applied onto an existing factorycoating,thespotmustbedriedwithaburnerwithmoderateflame.

Surface of the riser to be covered• Protect the riserminimum0,5m/1-1/2 ft. below the soil/airtransition.

• Protect the riser minimum 0,5 m/1-1/2 ft. above the soil/airtransition.

Dew point measurement• Makesurethatduringtheapplicationthetemperatureoftheriserisatleast3C/37,4Fabovethedewpoint.

• Ifnecessaryheatupthesurfaceoftheriseralittlebit.• Inorder to reduce the riskofupcomingcondensation, applythematerialinonesequencewithoutinterruption.

• ApplyVISCOTAQmaterialifpossibleabove15C/34,7F

Chapter 8: Coating of risers


Application of VISCOWRAP material• Theexistingfactorycoatingmustbebeveledtoanangleof45degrees (ifapplicable). Incaseof thickcoatings, likebitumenorcoaltarenamel,abridgeshouldbemadeonthebaresteelontothecoatingtransitionwithafirststraightcircumferencewrap. Thiswill facilitate to properwrap over the 45 degreesangle.

• Startwithafirststraightontheexistingfactorycoatingona12o’clockposition.Theoverlapontotheexistingfactorycoatingshouldbeminimal15cm/6”



• End on the other coating side with a straight wrap . Theoverlapon theothercoatingside shouldalsobeminimal15cm/6”

• EventualirregularitiescanbefilledwithVISCOPASTE.• Testthecoatingwithaholidaydetectoratminimum15kV.

Application of the PE Outer Wrap• PEOuterWrapshallbewrappedwitha50%minimumoverlap.• Thefirstwrapshouldbestraightandthenfollowedbyacigarwrap.


• A 6 mm/ ¼”section of VISCOWRAP material should still bevisibleafterthePEOuterWraphadbeenapplied.





















Materials necessary

• VISCOSHIELD• PVCtapeorfoil• Stanleyknife

General• VISCOSHIELD is applied in situations where excessivehorizontalorverticalshearloadsareexpectedorinthecaseofrockysoils.

• VISCOSHIELD is a UV curing polyester and is delivered as aroll. Innoncuredconditionit issoftandpliableanditcanbecut andpaste to any form.Once cured it gives a RockShieldprotectionagainstheavyimpacts.

Storage• StoreVISCOSHIELDinadry,darkandcoolplace.• Donotstoreabove25C/77F.• Storeinaventilatedareaandneverexposetheboxestodirectsunlight.

Application temperature• Applythematerialifpossiblebetween10C/50Fand25C/77F.• Donotapplyunder10C/50F.Ifthetemperaturedropsbelow10C/50F, it isadvisedtocreateashelterandto increasethetemperatureundertheshelterabove10C/50Fbymeansofaheatblower.

Preparation• Allnecessarytoolsshouldbepresentandeasilyaccessiblesothatnotimeislostduringcuttingandapplication.

• Createanareawheretheboxescanbestoredandthematerialcanbecutwithoutexposuretodirectsunlight,likeashelteroracontainer.

Chapter 9: Application of VISCOSHIELD


Application• The areawhere thematerial is applied shouldbe sufficientlyventilated.

• The area where thematerial is applied should be protectedfromUVlight.

• Never expose VISCOSHIELD to direct sunlight duringapplication.

• Pre-cutthematerialinadarkplaceoraplaceintheshadow.• Cutthematerialtosizeofthecircumferenceofthepipeinsuchway that an overlap of 10 cm/4” is created in circumferencedirection.

• Theoverlapisaminimumof5cm/2”inlineardirection.• Remove the release liner/membrane on the spot wherethe overlap is created so that barematerial adheres to barematerial.

• Wrap the material around the pipeline with light tension.Avoidwrinkles.

• In case of more than one wrap in linear direction, the topmembrane from the wrapped VISCOSHIELD should beremoved over a width of 5 cm/2” so that VISCOSHIELD isappliedon thepreviouswraponbarematerialandnotontothemembrane.

• After application of VISCOSHIELD the material should bewrappedundertensionwithaPVCtapeorfoiltoassuregoodadhesion.

Curing of VISCOSHIELD• VISCOSHIELDwillcureunderUVlight.• ThestrongertheUVlightthefastercuringwillhappen.• In case there is no sun orUV light, special UV lamps can beusedandinstalledondifferentlocationsalongsidethepipeline

• Alwaysworkwith2ormore lampsand install themonbothsidesofthepipelineatadistanceofmaximum70cm/2ft.


Warning• The UV light of the lamps is hazardous and can causetemporaryblindness.


PaintingAfter curing of the VISCOSHIELD the material can be painted ifnecessary.Paintingcanonlybeperformedafterthetopmembraneisremoved.

Chapter 9: Application of VISCOSHIELD


Materials necessary


GeneralLongitudonalor spiralweldsonapipelineneed tobeprotectedwith a single 5 mm strip of VISCOWRAP prior to wrapping ofVISCOWRAP.

Preparation• CollecttherequiredamountofVISCOTAQmaterialsneededtoperform thewrappingand store themat a locationnear theworking area above 15C/34,7 Fwhereno trafficor staffwilldisturb.


• Thepipelinetobecoatedshouldbesufficientlyexcavatedandbeeasyaccessiblefromallsides.

• The area from the trench bottom to the lower part of thepipelineshouldbeminimal30cm/12”.

• The working area should be dry and free of obstacles. Usedrainagepumpswherevernecessary.

• Checkwhether the surface to coated isminimum3C/37,4 Fabovethedewpoint.

• Protectthesurfacetobecoatedfromrainandothermoisture.

Surface preparation• ThesurfacecleanlinessmustbeminimumST-2,bypreferenceblastedtoalevelSA2-1/2.


Dew point measurement• Makesurethatduringtheapplicationthetemperatureofthesubstrateisatleast3C/37,4Fabovethedewpoint.

• Ifnecessaryheatthesurfaceofthesubstrate.• Inorder to reduce the riskofupcomingcondensation, applythematerialinonesequencewithoutinterruption.

• ApplyVISCOTAQmaterialifpossibleabove15C/59F.

Chapter 10: Coating of new pipelines with welded seams


Application of VISCOWRAP Inner Wrap• VISCOTAQ products can best be applied at temperaturesabove15C/59F.

• In caseof a longitudinal or spiralweld, apply a 50mmwidestripofVISCOWRAPmaterialover theweldandsmoothwitharoller.

• Theexistingfactorycoatingmustbebeveledtoanangleof45degrees (ifapplicable). Incaseof thickcoatings, likebitumenorcoaltarenamel,abridgeshouldbemadeonthebaresteelontothecoatingtransitionwithafirststraightcircumferencewrap. Thiswill facilitate to properwrap over the 45 degreesangle.

• Startwithafirststraightontheexistingfactorycoatingona12o’clockposition.Theoverlapontotheexistingfactorycoatingshouldbeminimal15cm/6”.




• EventualirregularitiescanbefilledwithVISCOPASTE.• Testthecoatingwithaholidaydetectoratminimum15kV.Application of the PE Outer Wrap• PEOuterWrapshallbewrappedwitha50%minimumoverlap.WrapthePEOuterWrapbypreferenceinreversedirection.SostartwhereyouendedwiththeVISCOWRAP

• Thefirstwrapshouldbestraightandthenfollowedbyacigarwrap.


• A 6mm/¼” section of VISCOWRAPmaterial should still bevisibleafterthePEOuterWraphadbeenapplied.





















Materials necessary

• VISCOWRAP• PEOuterWrap• VISCOSHIELD(ifdesirable)• UVLamps(ifnecessary)• VISCOSLEEVE• Burner

General• Fieldweldedjoints,alsocalledgirthwelds,canbecoatedwithVISCOWRAPVISCOWRAPorVISCOSLEEVE.

Preparation• Excavate the field welded joint in such way that it is freelyaccessible from all sides. Make sure that there is enoughspaceunderthepipeline.Theminimumexcavatedspaceis30cm/12”fromthebottomofthetrenchtothelowerpartofthepipeline.

• Keep theworking area clean and dry at all times. Avoid thepresenceofwater.

• Regularly check whether the surface of the pipelineis3C/37,4Fabovethedewpoint.

• Protecttheworkingareafromrainandothermoisture.

Surface preparation• In case of rehabilitation the old coating should be removed.Removeloseparts,grease,debrisandmoisture.

• Theminimum surface should be ST-2 but in order to obtainbestvaluesblast thepipetoasurface levelnearwhitemetalSA2-1/2.

• Remove sharps edges on the welds. Do this by means of agrindingmachine.

• Bevelthefactory/adjacentcoatingofthepipelinetowhichaconnectionmustbemadetoanangleof45degrees.

• Theadjacentcoatingmustbemustberoughenedbymeansofsandpaperoragrindingmachine.

Overlapontotheexistingpipecoating:<30”pipelines10cm/4”>30”pipelines15cm/6”

Application of the VISCOWRAP Inner Wrap• Theexistingfactorycoatingmustbebeveledtoanangleof45degrees (ifapplicable). Incaseof thickcoatings, likebitumenorcoaltarenamel,abridgeshouldbemadeonthebaresteelontothecoatingtransitionwithafirststraightcircumferencewrap. Thiswill facilitate to properwrap over the 45 degreesangle.

• Startwithafirststraightontheexistingfactorycoatingona12o’clockposition.Theoverlapontotheexistingfactorycoatingshouldbeminimal15cm/6”


Chapter 11: Coating of girth welds




• EventualirregularitiescanbefilledwithVISCOPASTE.• Testthecoatingwithaholidaydetectoratminimum15kV.

Application of VISCOTAQ PE outer wrap• PEOuterWrapshallbewrappedwitha50%minimumoverlap.• Thefirstwrapshouldbestraightandthenfollowedbyacigarwrap.


• A 6mm/¼” section of VISCOWRAPmaterial should still bevisibleafterthePEOuterWraphadbeenapplied.


Application of VISCOSHIELD Outer Wrap• VISCOSHIELDisappliedinsituationswhereheavymechanicalimpactscanbeexpected.
















Painting• AftercuringoftheVISCOSHIELDthematerialcanbepaintedifnecessary. Inorder topaintVISCOSHIELD, thetopmembraneshouldberemovedbeforecuring.

Application of VISCOSLEEVE

• VISCOSLEEVE material is supplied as pre-cut sleeves uponcustomerspecificationoras30m/100ft.rolls.

• Dryofthepipebymeansofamoderateflame.Thiswillcreateahandwarmsurface.

• Wrapthesleevearoundtheweld.Thecircumferenceoverlaptobemadeshouldbeona1oclockposition.

• The linear overlap on both sides onto the factory coatingshouldbeminimal5cm/2”.

• Unlikeconventionalsleevesthesleevesiswrappedhandtightaround theweldbutnot too tight.Somespace for shrinkingshouldbeleft.

• Thesideofthesleevethathasa45cutonbothcornersisthesectiontobeoverlapped.

• Heatothersideofthesleevewithamoderateflameandpatchthissideontothesidethathasthecutcorners.

• Heattheclosurepatchatonesideandattachthepatchtoonesideoftheoverlap.

• Heattheothersideoftheclosurepatchandattachthepatchtotheothersideoftheoverlap.

• Usearollertoremoveeventualairbubblesandsmoothenthepatch.

• Useamoderateflameandstartheatingtheshrinksleevefromthemiddletotheleftsideincircumferencedirection.

• Dothesameintherightdirection.• Thesleeve issufficientlyheated ifbluematerialescapesfrombothedgesofthesleeve.

• Finish with a roller and remove air bubbles and smoothenirregularparts.



Materials Necessary

• VISCOWRAP• VISCOPASTE• VISCOSEALANT• PEOuterWrap• VISCOSHIELD(ifnecessary)• UVlamps(ifnecessary)• PVCfoilortape(ifnecessary)

General• Undergroundflangesandexposedsubstratescanbeprotectedwith,VISCOPASTE;ofteninconjunctionwithVISCOWRAPandVISCOSEALANT.

• VISCOPASTE issuppliedasamastictypematerial thatcanbemoldedaroundexposedobjects.

Preparations• Makesurethatthesubstrateisfreelyaccessiblefromallsides.• The distance between the trench bottom and the objectshouldbeminimum30cm/12”.

• Theworkingareamustbekeptdryandclean.Usepumpstoremoveexcessivewater.

• Checkwhetherthesurfaceofthepipelineis3C/37,4Fabovethedewpoint.

• Protecttheworkingareaagainstrainandothermoisture.

Surface preparation• Remove debris, oil, grease and loose coating parts from thesubstratetobeprotected.Thetransitiontothefactorycoatingmustbebeveled(ifapplicable)atanangleof45degrees.

• The minimum surface preparation is ST-2. It is preferred tohaveanearwhitemetalsurfaceofSA-2-1/2.

• Whengrindingorblastingtheflange,theinsulationflangeorgasketmustbeprotectedinordertoavoiddamaging.

• Roughen the factory or existing coating of the pipe withsandpaper.ThisisthelocationwheretheVISCOWRAPwillbeapplied.

• In case of the presence of asbestos materials, the localregulations for removal of this material must be taken intoconsideration.

Application of VISCOWRAP material.• Theexistingfactorycoatingmustbebeveledtoanangleof45degrees (ifapplicable). Incaseof thickcoatings, likebitumenorcoaltarenamel,abridgeshouldbemadeonthebaresteelontothecoatingtransitionwithafirststraightcircumferencewrap. Thiswill facilitate to properwrap over the 45 degreesangle.

• StartwrappingtheVICOWRAPmaterialasneartotheflangeaspossible.Thefirstwrapmustbe straight.Thefirstwrapmustbeatleastinaverticalpositionunderthebolts.

Chapter 12: Coating of underground flanges and exposed substrates



• Wrapintothedirectionofthefactorycoatingandendstraightwith an overlap of minimum 150 cm/64” onto the factorycoating.

• Wrapwithminimum1cm/1/2”overlap.• Wrapbypreferenceattemperatures>15C/59F.

Application of VISCOPASTE material• ForoptimumapplicationofVISCOPASTE, thematerial shouldhaveatemperaturebypreferenceabove25C/77F.

• The material should not be too cold otherwise the materialwillbe stiffandhave too lowof a viscosity for application indifficulttoreachareas.

• CuttheVISCOPASTEmaterialissmallerpartsandpushintotheflangeareatobeprotected.

• UseglovesandaputtyknifeandkneadtheVISCOPASTEtoa45degreesanglefromtheflangerimtowardthepipeline.

• AllboltsandnutsorotherexposedobjectsshouldbecoveredwithVISCOPASTE.

• Avoidinclusionofairandmoisture.

Application of VISCOSEALANT• Incaseswherethere isenoughspace ,fill theflangeaperturewithVISCOSEALANT.

• ApplytheVISCOSEALANTallthewayaroundtheflange.• Smooth the surface with a putty knife, removing excessivematerial.

Application of VISCOWRAP material on the flange outer rim• Wrapone layerof VISCOWRAPmaterial in the circumferencelengthoftheflange.

• Endwithancircumferenceoverlapof5cm/2”.• In case the flanges is toowide for onewrap,makemultiplesinglewraps,insuchwaythatthecircumferenceoverlapisatleast1cm/½”.

• In cases of multiple circumference overlaps, they should bepositionedinsuchwaythattheydonotoverlapeachother.

Application of the PE Outer Wrap• TheVISCOPASTEmaterialshouldhaveasmoothanduniformstructure and by preference a 45 degrees angle from theflangetoptothepipeline.

• Startwrapping the PEOuterWrap on the flange rim to onesideandwrapdownwitha75%overlap.Afterfinishingmakethe samewrap to the other side and end in the sameway.Make sure that the lastwrap is appliedwithout tension andsmoothlyfixthePEendtothepipe.

• A6mm/¼inchsectionofVISCOWRAPmaterialshouldalwaysbevisibleafterthePEOuterWraphadbeenapplied.


Application of VISCOSHIELD• IncaseofexpectedheavymechanicalforcesitisadvisedtoprotecttheflangeconstructionwithVISCOSHIELD.

• DonotapplyVISCOSHIELDdirectlyontoVISCOPASTEbutfirstprotectthebodywithVISCOWRAP.• CuttheVISCOWRAPlayerstothedesiredsizeandapplythemfromonesizeoftheflange,overtheflange,totheothersideoftheflange,henceinalineardirection,witha3cm/1”overlap.

• Calculate the required material of VISCOSHIELD to be cut out of a roll so that the wholecircumferenceof theflangecanbewrapped.CutthesheetofVISCOSHIELDoutof theroll ( rollsize=10m/30ftx1m/3ft).Cut thesheet in suchway thatwhen it iswrappedover theflangeanoverlapcanbecreatedincircumferencedirectionof10cm/4”andminimum10cmontothepipeline.

• Make cuts into both side of the VISCOSHIELD sheet in such way that the cuts extend to thepipelinefacewhenthesheetisappliedontheflangeconstruction.

• RemoveBOTHmembranesofthesheetandfoldthesheetovertheflange.• Close the separate legs of the sheet (that you have created by cutting the sheet) in suchwaythattheyoverlapeachotherandformaclosedsurfaceandcarefullysmoothenthesurfacewitharoller.

• FinishwiththeapplicationbysqueezingthebodywithatransparentPVCtapeorPVCfoil.

Curing of VISCOSHIELD• VISCOSHIELDwillcureunderUVlight.• ThestrongertheUVlightthefastercuringwillhappen.• IncasethereisnosunorUVlight,specialUVlampscanbeusedandinstalledondifferentlocationsalongsidethepipeline

• Whenusingartificiallightalwaysworkwith2ormorelampsandinstallthemonbothsidesofthepipelineatadistanceofmaximum70cm/2ft.


Warning• TheUVlightofthelampsishazardousandcancauseapersontobecometemporallyblinded.• AlwayswearspecialsunglassesinordertoprotecttheeyesfromtheUVlight.

PaintingAftercuringoftheVISCOSHIELDthematerialcanbepaintedifnecessary.Thiscanonlybedoneifthetopmembraneisremovedoveritsfulllength.



Materials necessary

• ViscoSealant• ViscoWrap• PEouterwrap

Preparation• Theworkingareamustbeaccessiblefromallsides.• Scaffoldingshouldbesecuredifapplicable.

Surface preparation• Clean the surface between the flange and remove foreignmateriallikedust,leaves,deadinsectsetcetera.

• An air tool can be used but be careful not to damage thegasket.

• Clean the flange neck to a minimum level ST-2 and bypreferenceSA2-1/2.

• Whenblastingthegasketshouldbeprotected.

Application of VISCOSEALANT• ProtecttheflangeneckwitharemovabletapeinordernottopollutetheneckwiththeVISCOSEALANT.

• Inject the VISCOSEALANT cartridge into a caulking gun andinject the VISCOSEALANT in the complete circumference oftheflange.

• Remove excessive material with a putty knife. Dependableupontheflangeclassandflangetypeaflexiblenozzlecanbeusedinordertopenetratetheflangeaperturesuccessfully.

Application of VISCOWRAP• RemovetheprotectivetapeandapplyonelayerofVISCOWRAPover thecomplete circumferenceof theflangeandmakeanoverlapofatleast5cm.

• In case the flange neck does not match the width of theVISCOWRAP,thanmaketwoseparatewraps,insuchwaythatthe circumference overlap between the twowraps is alwaysminimum1cm-1/2”.Moreispossible,lessisnotallowed.

Application of PE Outer Wrap• ApplyminimumonelayerofPEouterwrapwithtensionoverthecompletecircumferenceoftheflange.

• Applytheendofthetapewithouttension.IncasetheflangeneckdoesnotmatchthewidthofthePEtape,wrapthetapewithanoverlapof50%overthewholeflangewidth.

• It ispreferred to roughen the surfaceof thePE towhich thelastpart is attached towith a sandpaper and to adhere theendofthePEwithabutylprimertothesurfaceinordertogetaproperadhesion.

Chapter 13: Protection of seals, bolts and flange apertures


VISCOSHIELD• Incaseextramechanicalprotectionisneeded,it isadvisedtowraponelayerofVISCOHIELDontheflangerim.

• We advise to use VISCOSHIELD reels, available in severalwidths.

• Cutthereeltothedesiredwidthandremovethereleaseliner.• Wrap the VISCOSHIELD over the entire circumference of theflangeandfinishbymakinganoverlapofabout5cm/2”.

• Whenmakinganoverlap,removetheuppermembraneoftheVISCOSHIELD towhich thewrapped sectionwillbeattachedtoforabetteradhesionandfoldbackonceapplied.

• Read the application instructions for VISCOSHIELD in thismanual.

Chapter 13: Protection of seals, bolts and flange apertures


Materials necessary

• ViscoSealant• Foam• Caulkinggun• ViscoBlock

Product descriptionViscoSealant is a non curing paste that can be used to sealconduitswheresingleormultiplepipesorcablespenetrateawallagainsttheinfiltrationofmoistureorgasses

CharacteristicsMaximumoperatingtemperature:35C/95FwithoutViscoBlock 50C/122FwithViscoBlockSurface freefromgrease,oil, debrisandloosepartsApplicationonwetsurfaces yesSandblasting notnecessaryMaximumpressure 2bar/29PSIwithviscoBlock

Preparation• Removealldebris,looseparts,oilandgreasefromtheconduitandcleanthecables.

• Cleanthesurfacethoroughlywithawirebrushandifpossiblewithcleanwater.VISCOSEALANTbondsonawetsurfacesoitisnotnecessarytodrythesurface.

• Do not use crossbars for pipe or cable supports as this willcauseleaking.

• Place the ViscoSealant cartridges in a container with warmwater of 25-30 C/86F so that the material obtains the righttemperatureforproperinjection.

Positioning of pipes and cables.• Applyafoambackinginsidetheconduit.Thebackingshouldbeabout15cmfromtheopeningofthepipe.ThebackingisimportantotherwisetheViscoSealantisinjectedintoahollowspace.

• It is important that the pipe and cable is centered asmuchas possible. In case ofmultiple pipes and cables, center andseparatethepipesandcablesinsuchwaythataspaceexistsbetweenobjectsofaminimum1cm/1/2”.

• Cleanthepipeandcableagainandmakesurenotloosepartsarepresent.

Chapter 14: Sealing of pipe and cable wall conduits


Injection of ViscoSealant• Cutthetopofthecartridgeabovethethread.• Install the flexible nozzle onto the cartridge and install thecartridgeintothegun.

• Push the throttle downwards and insert the nozzle towardsthebackingandstartinjectingtheViscoSealantwhilemakingacircularmovementaroundallthepipesand/orcable(s).

• Sensingresistanceindicatesthattheareaisfilledwithsealantandthecartridgecanbemovedtothefrontoftheconduitallwhilecontinuingtofill.

Finishing• It is advised to always use ViscoBlock in order to obtain apropersealingagainstthepressureofwater.

• In casenoViscoBlock isused, the injectioncanbeendedbymakingasmoothfinishwithaputtyknifeatthebeginningoftheconduit.

• In case ViscoBlock is used, leave a depth of 5 cm/2” at thebeginningoftheconduitfree.

• MixViscoBlockmortaraccordingtotheinstructionsandfinishthemortarsmoothlywithaputtyknife.







Materials necessary

• VISCOWRAP• VISCOTAQPOLYCURE

General• VISCOWRAP showsanadhesionunderwater,provided the surface is cleanand free from looseparts,shellandalga.

• ThesurfaceshouldbeblastedunderwatertoalevelminimumST-2.

Preparation• Dependingupontheinfrastructure,constructions,maritimeconditionsandtheriserstobecoated,scaffoldingcouldbenecessarytoapplytheVISCOTAQmaterial.

• AllVISCOWRAPmaterialshouldbeproperlystoredinadiverbag.• All VISCOCURE material should be stored in a watertight plastic bag. The bag should not beopenedoraccessibletomoisturepriortoapplication.

Surface preparation• Thesurfacetobecoatedshouldbefreefromshell,alga,loosepartsanddebris.• BlastthesurfacewithunderwaterjettingequipmenttoacleanlinessofminimumST-2.

Application of VISCOWRAP• Dependingupontheriserandthemaritimeconditions,startwrappingtheVSICOWRAPfromthebottomtothetopwithanoverlapof1cm/1/2”.

• Donotwrapthematerialasifitwasanoverlandpipeline,butapplythematerialtotheriserusingasweepingmotionwithslightpressureofyourhand.InthiswaythewaterisremovedfromtheareawherethesurfaceofthesubstratetouchestheVISCOWRAP.

• Pressoutallfoldsandairpocketsthatmayoccur.• Avoidasmuchaspossibleinclusionofwater.

Application of VISCOCURE• UnpackthePOLYCUREfromtheplasticback.• Apply the POLYCUREover the VISCOWRAP andwrap it around the riserwith tension (as far aspossible)andwitha50%overlap.

• Makethefirstwrapstraight.• Endstraight.• LetthePOLYCUREcureundertheinfluenceofwater.

Chapter 15: Protection of offshore risers


Documents

APPLICATION MANUAL - Viscotaq · This application manual is valid for all VISCOTAQ applications unless otherwise specified. VISCOTAQ products have been developed for the protection