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LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY Volume 33 - Number 4 Premier Coatings Ltd achieve a Queen’s Award for Enterprise: International Trade - See page 3

Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: [email protected] Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

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Page 1: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

Volume 33 - Number 4Premier Coatings Ltd achieve a Queen’s Award for Enterprise: International Trade - See page 3

Page 2: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

2

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] Website: www.denso.net

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 USA - LP 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 Website: 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 Website: www.denso.co.za

DENSO (AUSTRALIA) PTY LTD Tel: +61 1300 658 590411-413 Victoria Street, Brunswick, Victoria 3056, Fax: +61 39387 6973Australia 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 7511Denso House, Chapel Road, London SE27 OTR, England Fax: +44 (0) 20 8761 2456✓ Marine corrosion protection systems Email: [email protected] Website: www.denso.net

SEASHIELD INTERNATIONAL Tel: +1 281 821 33559747 Whithorn Drive, Houston, Texas 77095 Fax: +1 281 821 0304United States of America Email: [email protected]✓ Marine corrosion protection systems Website: www.densona.com

SEASHIELD INTERNATIONAL Tel: +61 1300 658 590411-413 Victoria Street, Brunswick, Victoria 3056, Fax: +61 1300 655 064Australia Email: [email protected]✓ Marine corrosion protection systems Website: www.densoaustralia.com.au

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

PREMIER COATINGS LTD Tel: +44 (0) 1233 770663Headcorn Road, Smarden, near Ashford, Fax: +44 (0) 1233 770633Kent TN27 8PJ, England Email: [email protected]✓ Membranes and corrosion protection systems Website: www.premiercoatings.com

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

Page 3: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

3

Premier Coatings Ltd achieve a Queen’s Award for Enterprise: International Trade Vol: 33 No. 4, Date: 05. 2017, Page: 3

Premier Coatings Ltd are proud to announce that they have been honoured with aQueen’s Award for Enterprise: International Trade. The prestigious award has been

won for outstanding growth in overseas sales in the last three years.

Founded in 1982, Premier Coatings Ltd specialises in the manufactureand supply of high quality anti-corrosion, sealing and waterproofing

products for the protection of buried, submerged or exposed steel andconcrete. Their product brands are well known for ease of use, reliabilityand long-service life. Customers include the offshore, construction and

civil engineering industries as well as the water, electric and gas utilities.In 1997 Premier Coatings Ltd was acquired by anti-corrosion and sealing

specialist Winn & Coales International Ltd and has thrived as a subsidiaryever since offering an alternative range of products to the parent company’s global market.

Based in Smarden, just outside Headcorn in Kent, the company’s products are manufacturedto meet the requirements of national and international standards as well as commercial

specifications and have gained a well earned reputation for consistent high quality. The steady increase in the demand for their products has prompted heavy investment with the

recent installation of an additional plant in their factory. The new plant has already improvedefficiency and reduced waste.

The Queen’s Award has been earned as a result of the combined efforts of the company’s UKstaff and their global network of agents offering proven and cost-effective solutions for their

customers, backed by technical advice. Winn & Coales International Ltd Chairman David Winn OBE says “I am delighted andvery proud that our subsidiary Premier Coatings Ltd, has achieved this prestigious

award and my thanks go to all of our dedicated staff and loyal customers,for helping to make this happen”.

Global Sales Recognised With A Queen’sAward For Enterprise: International Trade

For Premier Coatings Ltd.

Page 4: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

4

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

Sealing Asphalt to Concrete Parking Area Surface Joints - United KingdomVol: 33 No. 4, Date: 05. 2017, Page: 4

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.....

Densoband™ FlexibleSealant Used Again at theLondon Gateway

For this phase 1 project,sub-contractors AggregateIndustries applied approximately12,000 metres of blackDenosband™ as a flexiblesealant between asphalt andconcrete. This included sealingconcrete channels to take awaysurface water from gullies andbays.

Aggregate Industries havenow completed a new projectas main contractor whichentailed application of

Densoband flexible sealing strip was one of three Densoprotection products chosen for use in the originalconstruction of the London Gateway at Stanford-le-Hope,Essex. The principal contractor was a joint venture betweenLaing O’Rourke and Dredging International.

approximately 2,000 metres ofDensoband for jointing asphaltto concrete in the generalparking areas of the Gateway.Miles Macadam then applied afinal hardicrete grout to thisparking area.

Densoband is a polymermodified bitumen strip which isapproved for use with asphaltsurface course joints for asphaltto asphalt and asphalt toconcrete interfaces as analternative to the previously

commonly use hot pouredbitumen. Because Densobandprevents water, salts, pollutantsand weed seeds frompenetrating the joints they areunaffected by extremes ofweather and further deterioration.

Country: United KingdomObject: Asphalt and concrete Problem: Sealing jointsProduct Densobandsolution:

Project SummaryProduct type:

Sealing Mastics

Typical area at the Gateway where Densoband was used to join asphalt to concrete surfaces.

Page 5: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

5

Corrosion Prevention for Tank Bases - United Arab Emirates Vol: 33 No. 4, Date: 05. 2017, Page: 5

Country: UAEObject: Oil Slop TankProblem: Corrosion preventionProduct The Steelcoat Tanksolution: Base Protection System

Project SummaryProduct type:

Exposed Steel Coating

The original Denso SteelcoatTank Base Protection Systemapplied in 2013.

The company plays a strategic role in the UAE’s hydrocarbon chainand are a vital enabler of industrial and economic progress. Otherindustries in this highly integrated chain include on and offshore oilproduction, petrochemicals, refining, fertilizers, water and electricityagencies and infrastructure industries such as steel, cement andaluminum smelting.

A major UAE Operating Company at the heart of the UAEhydrocarbon chain that is engaged in the extraction of NaturalGas Liquids (NGL) from associated and non-associated gashas been successfully utilizing the Denso Steelcoat Tank Baseprotection system for the past four years.

In 2013 and featured in aprevious Denso Digest, theDenso Steelcoat Tank BaseProtection System was chosento seal the bases of a purifiedwater tank in Qatar and acrude oil tank in the UAE. The bases and chimes ofAboveground Storage Tanks(AST) present challenging

conditions for corrosionprotection. Salt ladened aerosolsand industrial pollutants canbe deposited on the walls ofan AST. Rainwater run-off fromthe walls will transport theseaccumulated deposits to thebase of the AST forming astrong electrolyte andfacilitating electrochemical

Still in perfect condition after four years of direct exposureto the UAE desert environment!

corrosion. This can corrode theperiphery of the tank base, theweld area and the lower wall. Itcan also cause crevice corrosionin the underside of the tankbase.This will lead to metalloss, perforation and structuralproblems. The concrete annuluscan also spall and degrade andany seal initially installed tothe base of the tank at the time ofconstruction can degrade by theaction of weathering or becomeirreversibly displaced/compressed/debonded by the cyclicmovement caused by emptyingand filling the tank. Corrosion of the steel,degradation of the concrete, andloss of an effective seal can createa route for the ingress of water tothe underside of the tank causingdamaging and unseen corrosion tothe external base of the AST. This can be particularly likely ifthe external periphery of the ASTdoes not drain properly. Thesolution is the Denso SteelcoatTank Base Protection System. During a recent visit to thisimportant UAE customer to lookat two new Denso SteelcoatTank Base Protection systeminstallations, the original 2013application was inspected andproved to be in excellent conditionafter four years tough service.

Two more tanks are now protected withthe Denso Steelcoat Tank Base ProtectionSystem applied in March 2017.

The Denso Steelcoat Tank Base Protection System

1st Tape - Denso Hi-Tack Tape

Denso Hi-Tack Primer

50mm

50mm

2nd Tape - Denso Ultraseal RT Tape

3rd layer - Denso Acrylic Topcoat

Densyl Mastic

Denso Primer D

The Denso Steelcoat Tank Base Protection System

Page 6: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

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LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

Protection of RTD Sensors on Pipeline - Canada Vol: 33 No. 4, Date: 05. 2017, Page: 6

Country: CanadaObject: 36” pipelineProblem: RTD sensors Product Denso multi-productsolution: system

Project Summary

Product type:Exposed Steel Coating

Norpoint Sandblasting &Painting Ltd in Edmonton,Alberta has been a long timeDenso Approved ApplicationCompany. They required acoating system resolution for theinstallation of Skin-TypeResistance TemperatureDetectors (RTDs) on several36” pipeline mainline blockvalve assemblies. The RTDs are used to detecttemperature fluctuations withinhigher temperature pipelines.Resistance TemperatureDetectors contain a resistor thatchanges resistance value as itstemperature changes. They havebeen used for many years tomeasure temperatures inlaboratory and industrialprocesses, and have developeda reputation for accuracy,repeatability, and stability. This

Denso Protal 7200/7250™ Liquid Epoxies are widely approvedand used for shop and field applied liquid coating solutionsin Canada. Denso North America in Canada has numerousDenso Approved Application Companies that are alwayslooking for unique coating solutions. The strong relationshipsthat Denso North America have with these ApprovedApplication Companies encourages these companies to findcoating solutions that may include the use of two or moreDenso coating systems.

information gathered on the temperature fluctuations aid in the leakdetection processes. Most RTD elements consist of a length of fine coiled wire wrappedaround a ceramic or glass core. The element is usually quite fragile, so it

is often placed inside a sheathedprobe to protect it. The RTDsensor is attached to the surfaceof the pipe and will be buriedwith the assembly. Corrosionand environmental protection isrequired to ensure the RTDoperates properly during itsservice life. This required aspecialized coating system tocoat and protect these RTDs forlong term performance. The coating scope of workwas that the entire block valveand pipe spool assembly wasfirst abrasive blasted to aSSPC-SP10 Near-White Metalwith a 2.5 to 5 mil profile. DensoProtal 7250 Spray Epoxy wasthen applied at 25-35 mils DFT

Denso System Protects RTDSensors on 36” Pipeline

Photo 1.

Photo 2.

Page 7: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

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Protection of RTD Sensors on Pipeline - Canada Vol: 33 No. 4, Date: 05. 2017, Page: 7

over the entire below ground section of the block valve and pipe spool assembly. The RTD sensor was then attached to the surface of the pipe. The entire area was then coated with a thin layerfor Denso Paste HT™ (Photo 1). Then the RTD is encapsulated with a layer of Densyl Mastic™ (Photo 2). Thiswould assure there were not any voids or cavities left around the RTD. Denso Hotline Tape™ was then appliedwith a 55% overlap around the entire circumference of the pipe (Photo 3). This would ensure the long termsealing of the area around the RTD. The entire area was then wrapped with Denso Glass Outerwrap™ to give mechanical protection to the entireassembly (Photo 4). The entire valve assemblies were then ready to be shipped to site for final installation(Photo 5). The End User that required these block valve and pipe spool assemblies appreciated the fact that Denso NorthAmerica was able to offer the entire solution for coating these RTDs.

Photo 3. Photo 4.

Photo 5.

Page 8: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

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LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

Sealing Underwater Stainless Steel Joints - AustraliaVol: 33 No. 4, Date: 05. 2017, Page: 8

The weir is a 60 year oldreinforced concrete structurethat was upgraded to ensureirrigation and stock and domesticwater continued to flow to theWangaratta region. The projectnot only extended the weir’s life;its innovative upgrade alsosaved about $1.25 millioncompared with the cost ofreplacing the weir. A stainless steel protectiveshell was retrofitted to theexisting structure. DensoSeaShield Splashzone UWEpoxy™ was used to seal alljoints prior to filling withDenso 311 Epoxy™. Professional Diving Serviceswas commissioned to assist withthe refurbishment works fromthe design phase through tocommissioning. ProfessionalDiving Services ensured theinstallation methods andmaterials were feasible foruse underwater.

Tea Garden Creek is situated approximately 260 kilometresfrom Melbourne, Victoria. The weir is managed byGoulburn-Murray Water. It was established in the OvensRiver in the 1960s to supply irrigation and stock anddomestic water down the Tea Garden Creek.

Country: AustraliaObject: Stainless steel shellProblem: Sealing joints Product SeaShield Slashzonesolution: UW Epoxy / Denso 311 Epoxy

Project Summary

Product type: Sub Sea Splash Zone Coating

Photos supplied by courtesy ofGoulburn-Murray Water andProfessional Diving Services

Above: The original 60 year old weir before refurbishment.Below: Underwater joints in the new stainless steel shell were first filled with Denso 311 epoxy and then sealed with SeaShield Splashzone UW Epoxy.

SeaShield™ Seals Steel ShellJoints in Tea Garden CreekWeir Refurbishment Project

Page 9: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

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LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

Sealing Underwater Stainless Steel Joints - Australia Vol: 33 No. 4, Date: 05. 2017, Page: 9

Right: The refurbished Tea Garden Creek Weir.Below: View underneath the weir.

Page 10: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

10

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

Lining Contaminated Concrete Mill Floor - Republic of South Africa Vol: 33 No. 4, Date: 05. 2015, Page: 10

Country: South AfricaObject: Cellulose mill floorProblem: ContaminatedProduct Denso ST100solution:

Project SummaryProduct type:

Lining for Concrete Floor

A contracting company namedClassic Instyle Painting whodoes the majority of themaintenance work for theSaiccor Mill, undertook thetask of preparing the almostimpossible, to clean the surfaceand then apply the Denso ST100Epoxy™ in conjunction withthe Denso EpoxyPenetrating Primer™. The contamination of oil andgrease was so severe that theconcrete had to be degreasedand Acid Etched in excess ofthree times to ensure the surfacewas suitable for coating. A primecoat of Denso Epoxy PenetratingPrimer was applied at a thicknessof 60µm DFT followed by twocoats of ST100 at a DFT of250µm to complete the system. Being first time applicators ofthe Denso ST100, Classic InstylePainting was pleasantly surprised

Denso ST100™ Put To TheTest In South AfricanCellulose MillThe Sappi Specialised Cellulose Mill which is situatedin Umkomaas, Kwa Zulu Natal, is the world’s largestmanufacturer and seller of dissolving wood pulp. Deep downtowards the centre of the mill lies the Dry Pulp store whichhas a conveyor system inside which aids in the packaging ofthe dry pulp. Below the conveyor is a concrete floor whichhas been exposed to over 20 years of oil, grease and othercontaminants which has left the area looking terribly untidyand has made maintenance of the concrete a tough task.

at the ease of application of thissystem and the aestheticallypleasing finish, post application. The pulp store has been leftlooking extremely impressiveand has eliminated any furthercontamination of oil and greasein the concrete surroundingthe conveyor.

Above: Condition of the mill floor prior to cleaning.Below: The mill floor after the application of Denso ST100.

Page 11: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

11

Winn & Coales International - New SeaShield WebsiteVol: 33 No. 4, Date: 05. 2017, Page: 11

The new website featuresa modern, streamlined designthat showcases the solutionsavailable to customers, detailsfor each of the product systemsavailable and real world casestudies highlighting SeaShield’sprotective capabilities.A comprehensive questionnaireallows enquirers to outline theirown unique requirements inorder to receive tailored adviceor make contact with more

Winn & Coales International would like to bring your attention to their recently redesignedSeaShield™ Marine Protection Systems website which can be found at www.seashield.com.

general enquiries, all of which areavailable in an easily navigable,mobile optimised format. SeaShield systems provideprotection to structures that arevulnerable to corrosion in marineenvironments. Offering long-termcorrosion prevention to jetty piles,offshore structures and sheetpiles, multiple grades of defensecan be employed to achieve costeffective protection irrespective ofsection structure design.

We invite you to take a lookat our exciting new website anddiscover our excellent range ofmarine protection systems withover 40 years proven trackrecord of durability and success.

Look At Our New SeaShield™ Website!

Page 12: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

12

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

Sealing Pre-cast Concrete Culverts - United Kingdom Vol: 33 No. 4, Date: 05. 2017, Page: 12

These replace the masonrybeach huts that were destroyedin a Valentine's Day storm in2014. The new beach huts arebeing constructed from pre-castreinforced concrete units to formfour individual terraces totalling250m length. Each terracedsection of huts is formed froma culvert placed on its sidewith an open front. The sealantin each culvert section willplay an essential role inensuring longevity.

Raymond Brown Construction Ltd has started to install 119new concrete beach huts at Milford on Sea. Infrastructureworks include a concrete promenade slab, access rampsand steps, and pedestrian walk-way surfacing.

Densostrip™ used to SealNew Concrete Beach Huts

Denso’s widely used Densostrip™ sealant was recommended to Raymond Brown Construction by MerchantSuppliers, Resapol of Southampton. Apart from its track record, the immediate availability of Densostrip in 20mmx 25mm sections was also an advantage to the contractor. Densostrip is a compound rubber and bitumen jointsealing strip for precast concrete units to provide a permanently flexible watertight seal when compressed

between joint faces previouslyprimed with Densostrip primer.As well as water and sea waterit is resistant to chemical andbiological attack. In addition to being an effectiveseal for precast concrete boxculverts, other uses includemanholes, inspection chambers,shafts, tunnels and pipe sections.

Artists impression of the new beach huts

The original beach huts destroyed by a severestorm in February 2014.

The new beach huts under construction - Densostrip is to join each pre-cast culvert section together.

Country: United KingdomObject: Asphalt and concrete Problem: Sealing jointsProduct Densostripsolution:

Project SummaryProduct type:

Sealing Mastics

Page 13: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

13

Chemical and Heat Resistant Linings for Oil Storage Tanks - USAVol: 33 No. 4, Date: 05. 2017, Page: 13

The decision was made toswitch to the Denso Archco400™ as a primer and Archco476P™ as a topcoat, due to theexcellent chemical and hightemperature resistance thatthese linings provide.

A large US oil pipeline, storage and transportation companyhad been experiencing numerous coating failures with theirexisting internal tank linings and was looking for a solution.

Oil Storage Tank InteriorsProtected withArchco™ Linings Country: USA

Object: Oil Storage Tanks Problem: Protective liningProduct Archcosolution: Industrial Linings

Project SummaryProduct type:

Industrial Linings

Archco 476P applied over the Archco 400 primer to provide excellent chemical and hightemperature resistances.

Archco 400 primer being applied to the blastedfloor and side walls of the tank.

Fully cured Archco 476P lining providing corrosion protection and allowing the tank to return to servicewithin 8 hours.

Other key factors that playedinto the decision to switch toDenso were the company’ssuccess with several otherDenso buried pipeline coatingsand the valuable technicalservice provided by Denso.

The internal tank floor and twofeet up the sidewall were blastedto a near white finish (SSPC SP-10). The Archco 400 primer,which is a two part epoxy withsuperior wet-out propertiessuitable for sealing heavily pittedfloors, was easily sprayed witha single leg (68:1) airless sprayunit. The following day theArchco 476P was applied usinga plural component airlessspray unit. This allowed for the tank to bereturned to service very quickly(8 hours at 75°F / 23˚C). TheArchco 476P is a 100% solids,two-part, high-temperatureresistant, epoxy phenolic-novolacsystem designed for internaltank linings. The owners can expect aservice life of 20+ years withthe Denso Archco Tank & PipeLining Systems.

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LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

Tank Base Protection for LNG Storage Tank - United Kingdom Vol: 33 No. 4, Date: 05. 2017, Page: 14

To meet various operatingconditions at the Isle of GrainNational Grid site the Denso TankBase system was chosen togive effective protection. Following surface preparation,Denso Hi-Tack Primer™ andDenso Primer D™ were applied.Densyl Mastic™ was then appliedin the gap between the tank andthe base. This not only provides asealant between the concrete andtank base to prevent entrapmentof water but also a smooth profilewhen applying the following DensoHi-Tack Tape™. A single layer ofDenso Ultraseal RT Tape™ wasapplied and then finally a topcoat.

Denso Protection Systemused for National GridLNG Tank BasesThe Denso Steelcoat Tank Base Protection System™ is beingused at the Isle of Grain National Grid site on four of theirLNG storage tanks. The installation work was carried outby contractors JPV Painters of Brentwood.

Country: United KingdomObject: LNG storage tankProblem: Corrosion preventionProduct Steelcoat Tank Basesolution: Protection System

Project SummaryProduct type:

Exposed Steel Coating

The Denso Steelcoat TankBase Protection System isflexible enough to move withthe tank when it gets filled andemptied and provides a toughouter armouring. The highlyweather resistant systemprovides a long-lasting solutionto Tank Base problems.

1st Tape - Denso Hi-Tack Tape

Denso Hi-Tack Primer

50mm

50mm

2nd Tape - Denso Ultraseal RT Tape

3rd layer - Denso Acrylic Topcoat

Densyl Mastic

Denso Primer D

The National Grid LNG storage tank. Below: After surface preparation is complete, Denso primers must be applied followed by Densyl Mastic to fill all the gaps between the tank and base prior to adding the tape layers.

The Denso Steelcoat Tank Base Protection System

Page 15: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

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Tank Base Protection for LNG Storage Tank - United Kingdom Vol: 33 No. 4, Date: 05. 2017, Page: 15

Above: The Denso Hi-Tack Tape is applied. Above and below: After a single layer of Denso Ultraseal RT Tape is applied,a coat of Denso Topcoat completes the Steelcoat system application.

Page 16: Volume 33 - Number 4densoaustralia.com.au/Denso_Digests/PDFs/Denso... · Corrosion resistant linings Email: mail@denso.net Website: DENSO NORTH AMERICA INC - CANADA Tel: +1 416 291

For further information - tick boxes, fill in coupon and fax or post to your nearest Denso branch(full list of addresses on page 2).

Name: Title:

Company:

Address:

Phone: Fax:

If you would like more information about our long-term corrosion prevention and sealingsystems that deal with the problem areas listed below, simply tick the boxes and fax back

this completed page and we will supply you with more information.

BURIED ONSHORE COATINGS

External corrosion prevention for underground pipelines, welded joints, valves and fittings.

Protection of mounded LPG vessels and fuel tanks.

MEMBRANES & FLASHINGS

Tanking / waterproofing.

Exposed rooftops and parapets.

SEALING MASTICS

Joint sealing of precast concrete manholes and culverts.

Joint and crack sealing of asphalt road surface wearing courses.

Joint sealing for airport runways.

Sealing of cable entry ducts.

EXPOSED SURFACE COATINGS

Corrosion prevention for chemical plant, structural steelwork, above ground pipes, storage tanks, offshore rigs, bridges and support cables, cranes and pipe bridges.

Corrosion prevention for metalroof purlins and metal roofsheets.

Protecting pre-stressing andpost tensioning bridge cablesand ground anchorages.

SUB SEA/SPLASH ZONE COATINGS

Maintenance corrosion protection for steel jetty piles.

Subsea pipelines and outfalls.

Protection of timber and concrete piling.

FAX NUMBERS UK: +44 (0) 20 8761 2456 ● USA: +1 281 821 0304 ● CANADA: +1 416 291 0898

AUSTRALIA: +61 39387 6973 ● NEW ZEALAND: +64 9274 1258 ● SOUTH AFRICA: +27 31 569 4328

INDUSTRIAL LININGS

Internal linings for tanks, pumps, vessels and pipelines.

Linings for concrete bunds and floors.

External abrasive wear protection

INDUSTRIAL TAPES

Sealing and insulating

Protecting and bonding

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DIY WEATHERPROOFING

Waterproofing and flashingq

261.6.2017 Vol 33 No.4 Quarterly Publication

WINN & COALES INTERNATIONAL LTDDenso House, Chapel Road, London SE27 0TR

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