GSEAL GROUPINFORMATION FORTHE SPECIFIER OR

MAINTENANCEENGINEER

Providing costeffective extensionof life for oxidising

surfaces inextremeenvironments

ChemicalEnvironments

Bridges

MarineAssets

Steel/Timber/Boltcombination

Cleaners

PaintPrimers

Passivators

Converters

PaintTopCoats

Membranes

Sealers

Penetrants

Dyes

Compounds

CombinationCoatings

OVERVIEW:The Gseal rangeof rustproofingcompoundsareformulated as single pack, single applicationencapsulating barriercoatsto protectoxidising steel.They arecorrosion neutralisingand lubricating.Gseal is a niche solution in extremeenvironments.

Theseenvironments areoften associatedwithaggressivechemicals, marinedeposits, volcanic fumesand condensation (leadingto chemicalcombinations).Themaintenance program isthen often complicatedbylackof access,time/tide constraintsordifficulties withsurface preparation and inter-coatcontamination.

Points ofDifference:GsealIndustrial Rustproofhas a 40year plus history,asacost effectivecorrosion solution.There isdocumented performance inthe fieldfrom 10to 30years inPh environmentsfrom1-11.n Single pack/singlecoatminimum300 micronsn Combined Product/Application Warrantyn Cost effectiven Proven extension of assetlifen Nosolvent n No crack/peeln 90%solids n Environmentally friendlyn Penetrating/selfhealing n Storage safen Nosandblasting n Weldable/no fumenSpill recyclable n Simplehand repair

Thetechnology wheelidentifies 11 categoriesofproducts that treat surfaces.Eachproduct categoryidentifies a groupwith different functionality.Gseal isa compound. Compoundsare notdry filmbuild paints. They are designedfor application directlyto oxidisingsteel and spallingconcrete with minimalpreparation.Thesubstrate can be new,oxidised, previouslycoatedor galvanised.Sandblasting orsurface grindingis seldom required.

TechnologyWheelofsurfacetreatmentoptions:

TheMaintenanceChallenge:Mainstream maintenancecoatingsare oftenstraightforward tospecify,for basic contracts.However, whereaggressive environmentscombinewithdifficult access,compounded with timeconstraints,the coatingand contracting optionsreducequickly.

HiTechcoatingswith good servicelives areoftenapplied ina factory controlledenvironment prior toassembly.Maintaining spot breakdownin manycoatingsis notstraight forward in a marineorprocess environment.A paintmanufacturers guaranteecan meannothing if surface preparation totheir specificationis not achieved. The Gseal combined“ProductandLicencedApplication” processexcels in thisenvironment.

Gseal is a valuable addition tothe SpecifierorMaintenanceEngineers options providingSuperiorSolutions indifficult situations:n SheetPiling & Wharfundersidesn Fertiliser stores, rooftrusses& conveyor framesn Steel Pile interiors /Mine Headframesn Abattoirsand Process environmentsn Spallingconcreten Cool Storeatticsn Port Facilitiesn Bridgesn Barge and Ferry voidsn Galvanising Plantsn Wood/concrete/bolt combinationsn Rusty Zor C purlins(Viablerescue coating)n Mobile assetsn Swing bridgesand cables

MarineAssets

Port Facilities,wharfsand assets within1Km of thecoast.

Experience in thisCategory 25 Yearsplus.

Buildings : Warehouses,loading canopiesand coolstore attics oftenhave salt ladenair circulating at levelsabovethe reachof convenient maintenancewashing.Wherethese facilitiesalso store fertiliser there canbeaggressive combinations of fertiliserand salt depositedonrafters,purlins and horizontal surfaces.Holdingprimers applied whenthe building waserected and highbuild 2pack epoxies can crackwithbuilding movementandcorrosion occurs.Recoating these areascan be difficult :1. Neutralising orremovingcorrosion cellscan requiresandblasting orgrinding.2. Primersand intermediatecoats willattractovernightsalt deposits.

Recommendation:Wash, clean and coatwith GoldsealIndustrialSprayGrade according tothe IndustrialSpray GradeSpecification.Clean and coatby section,completing thecoating ofthat section inone workshift.

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Marine Assets

ChelseaSugarworks.NZGsealonChelseawharfafter24years

Port Facilities,wharfs andassets within1Km of thecoast.

Experience in thisCategory 25 Yearsplus.

Wharfs -The undersides of wharfs areanaggressiveunwashedenvironment.Gseal isan effectivebarrier tosalt,chloride ionsandmoisture vapour.n Where therearecombinations ofwood decking onsteel, orconcrete deckingon steel,Goldseal willprotecttheconcrete fromspalling, thesteel fromoxidising andfillthejoin cavitiesbetween thetwo, with a flexible sealthatwill notcrack or peel.n Gseal can be applieddownto water level.Thecoatinghas a penetration phase thatsoaksintothephysical structureof steeland concrete. It then forms afirmdry coatingover 8-12 weeks, similar toplastercene.n Waveaction and particularlydetritus will removethecoatingover time towave height.n Where cathodicoranodic orotherelectrical corrosionsystemsare inplace, Gseal is an excellentpartner asthese systemsoftenproduce protection 200mm abovewaveheight/wet zone. Thisoverlapswith the Gsealprotection above.

Recommendation-Use IndustrialSpray GradeSpecification.

Failingpaintcoating

MarineAssets

Port Facilities,wharfs and assetswithin 1Km of thecoast.

Experience in thisCategory 25 Yearsplus.

Sheet Piling– Sheetpiling drivenover 20 yearsago wasdesigned tobesacrificial and wasnot protected.Replacing thisisnow anexpensive process with areasundervesselloading wharfseven harderto maintain.n Asa rescue coating, Gseal can be applieddirectlyto the20mmthick ruston sheetpiles. Ifthe sheet pilingalready has holesi n it Gseal can betrowelled intothesecavities as a fillerbefore overcoating thewholearea by airlessspray.n As Programmed Maintenance, Gsealcan beappliedtoa clean air chiselledsheet pile (when all therust scalehasbeen removed ) without sandblasting. Itisvery effective atfillingthe gap between theconcretewharfdeckand the sheetpile toporfilling vertical gapsinthesheet pile overlapwhere sea water oftenhasfreeaccess.

Steel Pileinteriors – Gseal can beapplied by 360degree nozzleto newsteelpiles that have yetto bedrivenor toexisting pile interiors exhibitinginternal saltandcondensation oxidation.n The internals shouldbe washedand large nodesremovedif practical, tohelplay down a coherentcoating.n The Gseal is sprayed atover 70 degrees Celsius.Itflows into cracks and,self levels,penetratesandcapillariesinto sprayshadow areas.n The pile cap can thenbere-fitted.

Gsealasarescuecoating

Marinepilebefore

Sandblastedsheetpiling

MarinepileafterGoldseal

Marine Assets

PortFacilities,wharfs and assetswithin 1Kmof thecoast.

Experiencein thisCategory 25 Years plus.

Wharf Conservation -Older wharfsarea combinationoftimber / concrete and steel.Fixings can becountersunkintotimber orconcrete.Some flange, boltandrodreinforcing ortriangulationbraces aredifficulttoprepare orconsist of bolted intersectionswhichcanbe preparedand paint coatedbut willmove. Thismovementcracks most coatingsallowingsalt waterandchloride ions tocreate localisedcorrosion cells.These underminethe coatingand blow it out fromunderneath.

Recommendation:n Remove rot, filltimbercracks with cold Gseal. .n Coat replacementbolts with Gseal,fit and fillthecountersink.n When replacing decking apply Gseal tosealthetopofthe supportmember and relay deck.n Spot coatcorrosion cells withBrush Gradeorcompletely coatwith IndustrialSpray Grade.n Gseal will capillarybehind nuts and flanges andwillnot crack orpeelwith movement.n Prepare and coatby section the same day.

WesternAustraliafullsun WesternAustraliatwoyearsold

Structural Assets

Structuresenclosing storage spacesormanufacturingprocesses.Greater than 1kmfrom the coast.

Experience inthis Category 35years plus.

This Category includes mostlarge storage, processing ormanufacturing facilities.n Mine ore processing producing acid& condensation.n GalvanisingPlants producing acid fumes.n CoolStore Attics producing condensationcorrosion.n FertiliserStores /Bolt, flange and horizontal depositcorrosion.n Abattoirs /Tanneries/Canneries/Wool ScoursproducingPhenvironments from1-11,including washing.n Concrete Plantsand Papermills producing mainlycondensationand steam.n SaltMines orprocessing producing salt slurry.

Most largebuildings arenot maintenance washedinternallyin a programmed regime.Thereforewith time there isa build upof dust,dirt andcontaminants.

Theseareeither:1.A product ofthe process withinthe structure.2.An accumulation ofmaterial and depositsblown infrom thelocalenvironment / nearby processes.3.Acombination of 1& 2thatcreate an issuethestructural coatingwasnot designedto resist.

AMaintenance Challenge :1.How doyou shut down theservice a largebuildingprovides,long enough, toclean, prepareand recoat acomplicatedinternal supportstructure?2.Ifthestructure houses a process, how do you protectthemachinery fromdetritusproducedfromstripping,grinding orsandblasting?3.Ifthereisnot the time orbudgetto address1& 2whatisthe long termcost of partial orspotcorrosion control?The Gseal coatingcan be applied without extensivepreparationand where the debris frompreparationcanbecontrolled.

Individual purlinscan bereplaced orsleevedthen encapsulated withGoldseal

Often maintenanceis long overdueand a completestrip backtothe steelwould be required,in ordertoapply a paint typecoatingsystem.Inthe case ofcorroded ZorC purlins, Gseal is anexcellent rescue coatingavoidingroof removal.Depending on the situation, Gseal IndustrialSprayGrade isapplied ina singleapplication afterwaterblasting ormanualcleaning, chipping orscraping.

Sandblasting isnot a prerequisite.

This allowssections of a warehouse,fertiliserstore,meat worksor galvanisingplantto becoated, while theproduction process ismaintained.Critical areascan becoatedwith the shut downof a singleshift.

Example: The BHP BilletonFertiliser storeinTownsville,Queensland, Australia, now ownedbyIncitec Pivot.Each 200ton baywas preparedandcoatedin 3-4days using a 140 footboom lift.

Coating fromnewField evidence supports applying Gseal tonewstructures, portals orroofpurlins inwhat istypicallybeanaggressiveenvironment.Costing this into thecapital expenditure givesaneconomical maintenancebudget, return oninvestment.

Example 1:AFFCO Meatworks HorotiuNew Zealand1974 (New Zealand’s largest meatprocessor)Gseal wasapplied to mildsteel portals in1974.An updated2004 reference confirms effectiveprotection fromsurface corrosionsince thattime, inPhenvironments from1-11, without majormaintenance.

Example 2:The GalvanisingIndustry inAustralia andNew ZealandGseal hasbeen applied inNew Zealand since1983in this Industryand Australia sincethe early1990’s.Theacid fumes generated by the galvanisingprocesswillcause most singlepack, 2packand galvanisedcoatings tofailin 2-5 years. Having usedGoldseal formany yearsleadingAustralian plants arenow applyingGoldseal tonewfacilities as a capital expense due toexcellent coatinglife.

Recommendation: ApplyGoldseal accordingtotheIndustrial Spray Grade Specification.

Bridges

Most NewZealand district councils specifyoruse theGseal coating for steel structures.

Experience inthis category30 yearsplus.

There are Gseal applications on:n Steel flatdeck farm style bridges.n Calender Hamilton bridges (Top structure).n Wood deckon steel.n Concrete deckonsteel.n Heritage bridgesn Wood and cableswing bridges.n Bridgebearings& confinedspaces.

Goldsealexhibits the followingadvantages;

1. Sandblastingis notrequired.

2. Detritus and paintflake encapsulationsystem hasbeenapproved for eco-sensitiveareas.

3. Single coatapplicationto several thousandmicronsispossible.300 plus microns is standard.

4. Filling and sealingof the deck/ supportstructure join.

Bridges continued5. Application onconcrete toinhibitspallinge.g.RaglanWharf 20 +years without maintenance

6. Can beapplied tobridge bearings and bearingplates.Can beappliedin confined spaces.

7. Can beapplied to hollowbridge foundationlegs incondensation environments.

8.Canbe appliedby 360deg fan tohollow membersandlighting poles.

9.Canbe appliedtocracked timber and steelcables asaconservation technique.

10.Hand rail and maintenancepainting services can beofferedby our Licensed contractor.

11.Canbe appliedaboveestuarinesalt water and inGeothermalenvironments.

BargeInteriorsandCondensationvoids in SteelVesselsExperience inthis category20 years+.

Many bargesor oldervessels were assembledfromsteel with onlya holding primer.Although theinterior isarelatively closedenvironment there isusually a buildup of contaminantsin thebilge which slowlycorrodesthe interior.As withmany closed steelenvironmentscorrosiongoes unnoticeduntil itappears through thehull fromthe inside out.

Recommendation:n Clean the bilge andcontaminated areas.n Remove scale.n Coat thewhole interior with Gseal. Bargesareusually warm inside and someairflowwill be required.As Gseal hasno catalysts orsolventsit hasa distinctadvantagein thisapplication.n Gseal in thisenvironment lasts substantially longerthan traditional coatings.

Inspection shows Gseal continues to perform very well after15 years in this marine barge

Miscellaneous Areasn Firesprinkler pipe systems– handapplication – nooverspray.n Marine winchesand cables.n Hand Application –Abrush grade isavailable forbolts,nut and flange reassemblyor applicationto dampmachinery foot/concreteareas.n Corroding Colorsteel.Colorbondand Polypanel as arescue coating.n Flange, nut and bolt corrosion -horizontal flangesaccumulatecontaminants thatarenot removed by rainwashing.

AucklandSkyTowertopmastflangesealedwithGseal

ExampleofFlangecorrosiononFijiflourconveyorhousingwhichcanbecontrolledwithGseal

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