Volume 28 - Number 2 - Denso · Anti-corrosion and sealing systems Web site: DENSO (AUSTRALIA) PTY...

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

Volume 28 - Number 2

Denso Steelcoat 400 and 700 Systems used on the Ercebridge pipebridge near Darlington- see story pages 4-5.

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WINN & COALES INTERNATIONAL LTD

WINN & COALES (DENSO) LTD Tel: +44 (0) 20 8670 7511Denso House, Chapel Road, London SE27 OTR, England Fax: +44 (0) 20 8761 2456✓ Anti-corrosion and sealing systems Email: [email protected]

Website: www.denso.net

ARCHCO-RIGIDON Tel: +44 (0) 20 8761 6244Denso House, Chapel Road, London SE27 OTR, England Fax: +44 (0) 20 8761 2456✓ Corrosion resistant linings Email: [email protected]


DARTFORD COMPOSITES LTD Tel: +44 (0) 1322 350097Unit 1, Ness Road, Erith, Kent DA8 2LD Fax: +44 (0) 1322 359438✓ Manufacture and repair of FRP panels

for cars and trains Website: www.dartfordcomposites.co.uk

DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291 343590 Ironside Crescent, Unit 12, Toronto, Ontario, M1X 1M3 Fax: +1 416 291 0898Canada Email: [email protected]✓ Anti-corrosion and sealing systems Web site: www.densona.com

DENSO NORTH AMERICA INC - USA Tel: +1 281 821 33559747 Whithorn Drive, Houston, Texas 77095 Fax: +1 281 821 0304United States of America Email: [email protected]✓ Anti-corrosion and sealing systems Web site: www.densona.com

DENSO SOUTH AFRICA (PTY) LTD Tel: +27 31 569 4319 120 Malacca Road, Redhill Industrial Area, Durban North 4051, Fax: +27 31 569 4328Republic of South Africa Email: [email protected]✓ Anti-corrosion and sealing systems Web site: www.denso.co.za

DENSO (AUSTRALIA) PTY LTD Tel: +61 1300 658 590411-413 Victoria Street, Brunswick, Victoria 3056, Fax: +61 1300 655 064Australia Email: [email protected]✓ Anti-corrosion and sealing systems Website: www.densoaustralia.com.au

DENSO (NEW ZEALAND) LTD Tel: +64 9274 1255PO Box 76167, Manakau City, Auckland, Fax: +64 9274 1258New Zealand Email: [email protected]✓ Anti-corrosion and sealing systems Website: www.densoaustralia.com.au

SEASHIELD INTERNATIONAL Tel: +44 (0) 20 8670 7511✓ Marine corrosion protection systems Fax: +44 (0) 20 8761 2456Denso House, Chapel Road, London SE27 OTR, England Email: [email protected]


SEASHIELD INTERNATIONAL Tel: +1 281 821 3355✓ Marine corrosion protection systems Fax: +1 281 821 03049747 Whithorn Drive, Houston, Texas 77095 Email: [email protected] States of America Web site: www.densona.com

SEASHIELD INTERNATIONAL Tel: +61 39356 7600✓ Marine corrosion protection systems Fax: +61 39387 6973411-413 Victoria Street, Brunswick, Victoria 3056, Email: [email protected] Website: www.densoaustralia.com.au

SEASHIELD INTERNATIONAL Tel: +64 9274 1255✓ Marine corrosion protection systems Fax: +64 9274 1258PO Box 76167, Manakau City, Auckland, Email: [email protected] Zealand Website: www.densoaustralia.com.au

For further information on our products and their suitability for your particular project,please contact any of the Denso companies listed below:

Corrosion Prevention for Jetty Piles - Australia


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Country: Australia

Location: The Port of Mackay, Queensland

Object: Steel jetty piles

Problem: Corrosion prevention

Productsolution: SeaShield Series 80 System / Steelcoat 100 System

Project Summary

Product type: Sub sea / splash zone coating

For quick identification of the relevantproduct type used in each story we

have used the following colour codes:

BURIED PIPELINES & LPG VESSELS

EXPOSED STEEL & PIPEWORK

STORAGE TANKS, PUMPS ETC

SEALING MASTICS

MEMBRANES & FLASHINGS

INDUSTRIAL TAPES

SUB SEA PIPELINES & JETTY PILES

Protective coatings for......

Protective linings for.....

Sealing & waterproofing.....

The wharves are supported bysteel piling of varying types andsizes, piling on the older wharveswere protected by typical marinecoating systems while the morerecently constructed wharveshave piling coated with a factoryapplied polyethylene material.Ongoing maintenance wasrequired particularly with the

older, painted piles.A decision was made toinvestigate alternative meansof protecting the various typesof piling at this location and aftertrialling various options theSeashield 80 system waschosen. This system consistedof Petrolatum Primer and Tapeoverwrapped with PVC backed

The Port of Mackay is located in tropical centralQueensland; products handled through the Port include rawsugar, refined sugar, molasses, tallow, ethanol, grain, liquidchemicals, Fertilizer, iron concentrate and petroleum.

SeaShield & SteelcoatProtection for Jetty Piles

bitumen adhesive tape.A second concern was corrosionat the pile / concrete interface,this was addressed by applyingthe Steelcoat 100 Systemconsisting of a High Tack Primerand Tape over coated with aspecially formulated brushapplied Elastomeric Membrane,The Seashield 80 system wasthen installed so as to overlapthe Steelcoat 100 ensuringcomplete long term protectionagainst corrosion andsignificantly reducing ongoingmaintenance costs.

Above: Application of the SeaShield 80 Systemunderway showing completed Steelcoat 100System at the top of the pile.

Left: Some completed piles in the background.

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Corrosion Protection of Exposed Pipes and Fittings - United Kingdom

Denso Steelcoat SystemsGive Quality Finish as wellas Quality ProtectionNorthumbrian Water has recently completed a refurbishmentof the 20 metre Ercebridge pipebridge near Darlington whichcarries potable water over a brook

Country: United Kingdom

Location: Ercebridge near Darlington

Object Pipebridge with anti-vandal guards


Productsolution: Denso Steelcoat 400 and 700 Systems

Project Summary

Product type: Exposed surface coatings

Below Close up of how Denso Profiling Masticleft: is used on the flange joints to smooth

contours prior to wrapping with tape.

Below Close up of Denso Ultraseal Tape centre: application to the flange joints. Each

horizontal strip of tape is overlapped onto the one below in a weatherboard fashion to give extra resistance against weather penetration.

Below The finished pipebridge and anti-vandal right: guards coated with Denso S.T. Epoxy.


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Corrosion Protection of Exposed Pipes and Fittings - United Kingdom

The contractors for the projectwere Advanced EngineeringSolutions Ltd of Cramlington.Their craftsmanship andexpertise at applying the DensoSteelcoat 400 and 700 Systemsdemonstrates the fact that thesystems can give an attractivefinish as well as providingexcellent corrosion prevention.

After wire brushing to removeprevious coatings, thecontractors applied DensoHi-Tack Primer to all surfaces,Denso Profiling Mastic to theflange joints and then DensoHi-Tack Tape followed by DensoUltraseal Tape to both the pipejoints and barrels using55% overlap.

Finally two coats of DensoAcrylic Topcoat were appliedover the Denso Ultraseal Tape.

The anti-vandal guards werecoated with the Steelcoat 700System which comprises twocoats of Denso ST Epoxyfollowed by a coat of DensoWeathershield to give itextra ultra violet resistance.

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Corrosion Prevention for Buried Jet Fuel Pipelines - Canada

This was the situation nearToronto Pearson InternationalAirport over the past winter andone perfectly suited for DensoProtal 7125. Toronto PearsonInternational Airport is Canada’slargest and busiest airport,serving 40% of all airline traffic inCanada. Pearson Internationalprovides air service to over 140destinations in 45 countriesaround the world and hasrecently added a new terminalto better handle their 31,000,000annual passengers.

With the new airport terminalnow in place, there was a needfor additional offsite jet fuel tanksand the associated pipingrequired to carry fuelapproximately 5kms into theairport. Field repairs and girthwelds being coated at minus15°C were protected usingDenso Protal 7125. The 7125

Denso Protal 7125protecting Jet Fuel Piping atCanada’s #1 Airport

fast cure, low temperaturecoating allowed constructioncrews to continue their workwithout the delay of preheating.This has kept the project on-timeand on-track and workedextremely well during the coldwinter months. The projectcontinues on now through thesummer with 100’s of lengths ofDenso Protal 7250 protectedpipe being installed.The pipeline installation has alsoprovided approximately 1000

Construction in Canada provides some unique cold weatherchallenges that limit a large portion of liquid coatingscurrently on the market. As contractors struggle with trying tocomplete projects in a timely fashion they must deal with lessthan favorable application temperatures that continually slowdown job progress and cost more money to finish.

Country: Canada

Location: Toronto Pearson International Airport

Object Jet fuel pipeline


Productsolution: Denso Protal 7125

Project Summary

Product type: Buried pipes and fittings

girth welds that will be coatedwith Protal 7200.

The versatility of Denso ProtalLiquid Coatings has again givenus an advantage over most otherepoxies on the market and thishas been especially true indealing with the widetemperature ranges ourconstruction companies arefaced with each year in Canada.

Jet fuel pipelengths stockpiled prior to installation at the airport.


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Corrosion Prevention for Buried Jet Fuel Pipelines - Canada

Above and below: With no preheating necessary, the girth welds can easily be coated with Protal 7125 at temperatures of -15°C. Inset above: New jet fuel tanks being constructed approximately 5km from the airport

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Corrosion Prevention of Roof Steelwork - Republic of South Africa

RBM uses an ingeniousdredge mining operation toextract and separate the heavyminerals ilmenite, rutile andzircon (about 5% in volume)from the sand.

A large artificial freshwaterpond is created in the dunes onwhich they float the dredger andconcentrator plant, burrowinginto the mining face of the dune.

As the sand face isundermined, it collapses into thepond forming a slurry which issucked up and pumped to afloating concentrator.

At this point, the heavyminerals are separated fromthe sand using a gravity processand stockpiled as heavy mineralconcentrate (HMC) fortransportation to the smelter site.

Due to this process as well as

Denso Steelcoat 400Protects Barge RoofStructure at Richards BayHeavy MineralsRichards Bay Minerals (RBM) is a leading producer of titaniaslag, high purity pig iron, rutile and zircon. The company issituated in Richards Bay on the Indian Ocean coastline innorthern KwaZulu Natal, South Africa.

the coastal environment,corrosion is a serious concern.To combat this, the Steelcoat400 System was selected toprotect the roof structure of thedredger, as at the highest pointthe structure is exposed to theprevailing winds and salt sea air.

PJ Painters, Denso’sapplicators of the SteelcoatSystem for many years, are theresident contractors on site andare currently applying the 3500sq.m. of Steelcoat 400.

Country: Republic of South Africa

Location: Richards Bay, KwaZulu, Natal

Object Roof structure steelwork of dredger plant

Problem: Corrosion prevention in aggressive environment

Productsolution: Denso Steelcoat 400 System

Project Summary

Product type: Exposed Surface Coatings

The roof structure of the dredger is protected against the highly corrosive environment with theDenso Steelcoat 400 System.

The dredger and concentrator plant.

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Waterproofing of Building Substructure - Nigeria, West Africa

Country: Nigeria, West Africa

Locations: Lagos, Abuja and Katsina

Object New buildings

Problem: Waterproofing of building substructure

Productsolution: Denso 1000 SA and 3000 SA Waterproofing Membrane

Project Summary

Product type: Waterproofing membranes

Denso 1000 SAWaterproofing Membraneused in Three NewNigerian Buildings Denso SA Waterproofing Membrane has been used fortanking the substructure of three major buildings recentlyconstructed in Nigeria. The products were supplied andapplied by Denso agents, Masterproofer Ltd, Lagos

Above: Shell Ltd, FederalCapital, Abuja.

Constructed by main contractors,Costain (West Africa) Plc andstructural engineers MorganOmonitan & Abe.Denso 3000 SA WaterproofingMembrane was used.

Above: Central Bank ofNigeria, Katsina.

Constructed by main contractors,Cappa and D’Albert Plc andstructural engineersCiv-Struct Associates.Denso 3000 SA WaterproofingMembrane was used.

Above: Protea Hotel, VictoriaIsland, Lagos.

Designed by architects DesignGroup Nigeria. Constructed bymain contractors, Grinaker-LTAConstruction Ltd and structuralengineers Ove Arup &Partners Nigeria.Denso 1000 SA WaterproofingMembrane was used.

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Corrosion Prevention for Sweating Ammonia Tanks - United States of America

These services includeelectric and water supplies,flood management, water andwastewater utilities, public parksalong the Highland Lakes andlower Colorado River, andcommunity and economicdevelopment services to ruraland suburban communities.Many of the LCRA facilities havepipe, tanks and various steelstructures that operate in ahighly corrosive environment.

LCRA Sweating AmmoniaTanks Protected With Denso Hi-Tack Tape

Corrosion protection for 2 largeammonia tanks (10 ft tall x 40 ftlong) at their Bastrop facility hadbeen a continual battle due toconstant sweating. After manyyears of painting the tanks (every3 to 5 years), the LCRAengineers selected the DensoHi-Tack Tape coating forlong-term corrosion protection.

The scope of the workincluded hand tool cleaning the

The Lower Colorado River Authority or LCRA is a nonprofitpublic utility that was formed in 1934 by the TexasLegislature. LCRA’s mission is to protect people, propertyand the environment by providing public services for morethan one million people in Central and Southeast Texas.

Country: United States of America

Location: Texas

Object Ammonia tanks

Problem: Corrosion prevention in aggressive environment

Productsolution: Denso Steelcoat 100 System

Project Summary

Product type: Exposed Surface Coatings


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Corrosion Prevention for Sweating Ammonia Tanks - United States of America

Photos: Denso Hi-Tack Tape and Primer applied to sweating ammonia tanks.

surface, application of a thinlayer of Denso Hi-Tack Primerand a double layer of DensoHi-Tack Tape to the tanks andsteel support columns. The total

surface area protected wasapprox. 3,100 square feet.

The contractor completed theproject in 4 days and the LCRApersonnel were very pleased

with the results. The large steeltanks will now receive manymore years of long-termcorrosion prevention.

Volume 28 - Number 2 - Denso · Anti-corrosion and sealing systems Web site: DENSO (AUSTRALIA) PTY...

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Transcript of Volume 28 - Number 2 - Denso · Anti-corrosion and sealing systems Web site: DENSO (AUSTRALIA) PTY...