winn & coales international ltd denso digest...denso house, chapel road, london se27 0tr,...

Volume 35 - Number 1Bridge timber piles protected with the SeaShield 500™ System, Yellowstone Park, USA - See story pages 8-9.

DensoDigest

WINN & COALES INTERNATIONAL LTD

QUALITY & INNOVATION FROM 1883 INTO THE 21st CENTURY

LEADERS IN CORROSION PREVENTION

& SEALING TECHNOLOGY

2 WINN & COALES INTERNATIONAL LTD

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

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

ARCHCO Tel: +44 (0) 20 8761 6244 Denso House, Chapel Road, London SE27 0TR, 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 59077-95 National Boulevard, Fax: +61 3 9356 7699Campbellfield, Victoria 3061, Australia 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 1258 New Zealand Email: [email protected]✓ Anti-corrosion and sealing systems Website: www.densoaustralia.com.au

SEASHIELD INTERNATIONAL Tel: +44 (0) 20 8670 7511 Denso House, Chapel Road, London SE27 0TR, 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 59077-95 National Boulevard, Fax: +61 3 9356 7699Campbellfield, Victoria 3061, Australia 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

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

LEADERS IN CORROSION PREVENTION & SEALING TECHNOLOGY

3

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.....

Corrosion Prevention for Dam Wall Tensioning Cables - Republic of South AfricaVol: 35 No. 1, Date: 3. 2019, Page: 3

Denso Protection for NewTensioning Cables in Water Dam UpgradeA project to increase Hazelmere Dam’s water capacity from 17to 37 million cubic metres was recently undertaken bycontractors Group Five for customer DWAF.

The extra 20 million cubic

metres of water capacity was to

be achieved by raising the

existing dam wall by 3 metres.

The design called for the

insertion of vertical tensioning

cables to restrain the new raised

wall and Denso Void Filler was

chosen to protect the cables.

Denso Void Filler (also known

as the Denso Steelcoat 50

System) was pumped into the

cavity between the steel cable

and cable duct to completely

encapsulate the cables.

By completely excluding air and

Country: South Africa

Object: Tensioning Cables

Problem: Corrosion prevention

Product solution: Denso Void-Filler™

Project SummaryProduct type:

Coatings for Exposed Steel

The new extended dam wall under construction.

water the risk of corrosion

is eliminated and the condition

of the cables can be easily

monitored when required.

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Corrosion Prevention for Anchor Rods / Sheet Piling Interface - Canada Vol: 35 No. 1, Date: 3. 2019, Page: 4

Two Corrosion Prevention Solutions Providedwith One Denso System

Denso has established itself as a well-respected solutions providerfor corrosion related problems as well as issues where sealingtechnologies are needed. Recently, a project in Hamilton, OntarioCanada, faced both of the above and required a solution.

Long since established as an

economic hub in Ontario,

Hamilton has a history of heavy

manufacturing from steel to

Studebakers to having the first

ever Tim Horton’s donut shop.

Due to heavy industry and

redevelopment goals however,

some of the waterfront needed

environmental remediation

and construction.

The Hamilton Harbour project

has been ongoing and in the

process of remediation and

redevelopment, a section of the

harbour was dredged and two

piers designed for construction.

During this process sheet

piling was used with anchor rods

and wale bolts to secure the

structure. A problem arose when

holes in the piles where the

anchor rods passed were allowing

uncontrolled water egress.

This problem was exacerbated

by the fact that corrosion of the

holes was active and allowing

water to escape at a growing

pace causing environmental

concerns.

To address the issue of

water exfiltration and corrosion

prevention, Denso suggested

and supplied three components.

First, the failing caulking and

rigid foam was removed and the

surface cleaned with a wire

brush. Then, Densyl Mastic™ was

chosen to fill the cavity because

of the product’s rigidity and

ability to maintain its form even

under significant pressure. Then,

the rod, mastic and a section of

the sheet wall around the orifice

were covered with Denso Hi-

Tack Primer™.

Country: Canada

Object: Sheet piling


Product Denso Hi-Tack Tape™

solution: and Densyl Mastic™


Coatings for Buried Steel

The busy Hamilton Harbour.

One of the anchor rods passing throughthe sheet piling.


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Corrosion Prevention for Anchor Rods / Sheet Piling Interface - CanadaVol: 35 No. 1, Date: 3. 2019, Page: 5

This provided additional

corrosion inhibition by blocking

contact of the substrate with any

moisture as well as ensuring

long-term adhesion of the tape.

Finally, Denso Hi-Tack Petrolatum

Tape™ was applied,

weatherboard style, onto the

rod, over the Densyl Mastic™

and onto the sheet pile.

This system will stand up

against the pressure of water

and later, endure the installation

of backfill during the pier

construction process.

Additionally, it will prevent

corrosion of the steel and

expansion of the rod hole and

protect the rods and wale bolts

for the life of the piers.

The installation of the sheet piling.

Above: First Densyl Mastic™ is used to seal around the hole where the anchor rod passesthrough the sheet piling. Then a coating of Denso Hi-tack Primer™ is followed by aweatherboard style application of Denso Hi-Tack Tape™ completing the application.

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Corrosion Prevention for Cooling Tower Pipework - IndiaVol: 35 No. 1, Date: 3. 2019, Page: 6

Denso Protection forCooling Tower PipeworkIn India, Bosch is a leading supplier of technology and servicesin the areas of Mobility Solutions, Industrial Technology,Consumer Goods, Energy and Building Technology.

Additionally, Bosch has itslargest development center inIndia outside Germany, for endto end engineering andtechnology solutions. The Groupoperates through twelvecompanies and originally set-upits manufacturing operation in1951. The Group’s operation hasgrown over the years to includeeighteen manufacturing sites,and seven development andapplication centres.

Country: India

Object: Cooling tower pipes


Product Denso Petrolatumsolution: Tape System™



Pictures: New cooling tower pipeworkprotected with the Denso system.


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Corrosion Prevention for Cooling Tower Pipework - India Vol: 35 No. 1, Date: 3. 2019, Page: 7

Recently, due to severecorrosion of cooling towerpipework at one of Bosch’s sites,they decided to dismantle thepipes and install new ones.They didn’t want to havecorrosion issues with the newpipework and were looking fora better solution than the FRPsystems that were used on theoriginal pipes.

After discussions with Densothey chose the DensoPetrolatum Tape System™ taking

into consideration the ease ofapplication, flexibility of thesystem and also the large numberof successful case historiesDenso have collected over theyears in similar situations.

After the installation of theDenso System on the newpipework by contractor BBR,Bosch now want to use Densosystems for other structures as well.

Below: More associated pipework alsoprotected with the Denso system.

The Denso Petrolatum Tape Systemcomprises a primer coat of DensoPaste™, then Denso Mastic™ to fillany voids for a smooth profilefollowed by a wrap of Densyl Tape™

Above: Close up of protected valve.

SeaShield™ System ProtectsHistoric Yellowstone Bridge

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Protection for Bridge Timber Piles - United States of AmericaVol: 35 No. 1, Date: 3. 2019, Page: 8

Country: USAObject: Bridge timber pilesProblem: Pile deteriorationProduct solution: SeaShield Series 500™


Sub Sea Splash Zone Coating

The historic Fishing Bridge was built in 1937 in the heart ofYellowstone National Park, Wyoming. It was once anattraction for fishermen from all over the country due to theabundance of cutthroat trout. It is now one of the featuredattractions for hundreds of thousands of Yellowstone Parktourists on an annual basis.

The structure is supported by162 x 15" timber piles that, overthe years, were beginning to seedeterioration from water line tomud line. The SeaShield Series500™ System was selected asthe system for the completeencapsulation of all 162 pilesusing 17" dia. SeaShieldFiber-Form™ jackets that yieldeda minimum ½" annular space.The jackets were constructed3/16" thick and in a specialbrown color to closely match theexisting piles. The annulus wasthen pumped full with theSeaShield 550 Epoxy Grout™.The epoxy grout kits consistedof 3 gallons of 2-part epoxy and2.5 x 50 lb. bags of Part CAggregate yielding 1.2 cu ft perkit.

Contractor preparing deteriorated timber piles for the installationof Denso’s SeaShield Series 500™ Fiber Glass Jacket System.

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Protection for Bridge Timber Piles - United States of AmericaVol: 35 No. 1, Date: 3. 2019, Page: 9

The epoxy grout, due to its outstanding flow characteristics, effectivelyfilled all voids, cracks and checks in the piles. Finally, the tops of thejackets were sealed off using a special brown color SeaShieldSplashZone UW Epoxy™.

In total the project comprised 1,440 LF of 17" dia. SeaShieldFiber-Form Jackets and 575 kits of the SeaShield 550 Epoxy Grout.Installation took place during the late summer of 2018 and wascompleted 2 weeks ahead of schedule. The contractor was verypleased with the ease of installation of both the Fiber-Form Jacketsand the 550 Epoxy Grout.

The Series 500 System provides excellent compressive, flexuraland tensile strength, as well as outstanding bond strength to thetimber piles. The system also provides weathering protection,including outstanding abrasion and UV resistance to ensure a longservice life for the Historic Yellowstone Fishing Bridge.

Close up of the pumpable SeaShield550 Epoxy Grout™ within the fiberglass jacket.

Timber piles fully protected using the SeaShield Series 500™ System from weatheringand deterioration.

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Corrosion Prevention for Radial Stacker Box Beam - AustraliaVol: 35 No. 1, Date: 3. 2019, Page: 10

The Denso Steelcoat 400™System was specified to extendthe life of the beam due to itsability to exclude theenvironment from the underlyingsteel beam.

Dampier Salt (DSL) has threeSalt operations in WesternAustralia located at Dampier,Port Hedland and Lake Mcleod.Salt production is achieved bypumping seawater throughprogressive ponds resulting inconcentration via evaporation.

Dampier Salt (DSL) approached Denso Australia late in 2017for a long term solution to protect a fabricated box beam thatwill be installed in a high salt spillage area on a radial stacker.This is a highly corrosive area that was determined to requirea higher level of surface protection than a typical blast andpaint solution.

Denso Steelcoat™ Protects Radial Stacker Box Beam

The salt is harvested and thentransported to the wash plant by180 tonne, bottom dump trucks.

Thereafter, the salt is washedto remove insoluble materialsand fed onto a static screenwhere brine and seawater spraysremove the residual liquor thatsurrounds the salt crystals. Theproduct salt is then fed onto aradial stacker, which movesthrough an arc of 180 degreesto form a stockpile with storagecapacity of over 750 000 tonnes.

Country: AustraliaObject: Box beamProblem: Corrosion preventionProduct Denso Steelcoatsolution: 400™ System



Denso Conforming Tape™ used forprofiling complex shapes.

The completed box beam protected by the Denso Steelcoat 400™ System.

The Denso Ultraseal Tape™ application

The Denso Steelcoat 400 System:• Denso Primer D™

• Denso Conforming Tape™• Denso Ultraseal Tape™• Denso Acrylic Topcoat™


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Corrosion Prevention for Gas Pipeline Field Joints - AustraliaVol: 35 No. 1, Date: 3. 2019, Page: 11

Nacap elected to use Protal7200™ for all Field Joint Coating(FJC) initially adopting speciallysized 800ml manual kits for the6” FJ. The material was suppliedover 2 deliveries in Denso’s 40’refrigerated container with thekits being applied by brush androller.

Due to time constraints withmanual application, sprayapplication of bulk 800 litre kitswas introduced in conjunctionwith the manual application

Protal™ Used As Field JointCoating for Gas PipelineIn 2018, APA Group awarded Nacap Australia the constructionof a 198km gas pipeline running from the Eastern GoldfieldsPipeline to the Gruyere Gold Mine Site in the eastern Yilgarnto fuel the Yamarna Power Station.

where an additional 5 x 800 litrebulk material was supplied midway

Country: AustraliaObject: Pipeline field jointsProblem: Corrosion preventionProduct solution: Denso Protal 7200™



Application of Denso Protal 7200™ to a gas pipeline field joint.

through the project.The Manual Spray application

was applied through a GracoXP70 pump at a 3:1 mix ratioand applied between 1,000 and2,000 microns in thickness. Theproject saw the delivery andapplication of over 14,000 litresof Protal 7200™ supplied inmanual and bulk 800 litre kitsdelivered and applied on site.

The successful construction ofthe pipeline was completed ontime in June 2018 seeing 198 kmof pipeline constructed within 4months from mobilisation.

The installation of the new gas pipeline underway.

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Sealing Precast Concrete Units - ScotlandVol: 35 No. 1, Date: 3. 2019, Page: 12

These precast units form thetrenches which house theunderground supply of servicesto the fountain and were bothsupplied and installed by CreaghConcrete Products.

The year-long restorationproject on the new foundationsand waterworks (under the RossDevelopment Trust) now enablesthe fountain to operate for thefirst time in years. IndustrialHeritage Consulting Ltd werethe project managers on thefountain conservation works.

Densostrip™ Used OnRefurbished Ross FountainAs part of a recently completed £1.5million project torefurbish the historic Ross Fountain in Edinburgh, Winn &Coales (Denso) Ltd supplied Densostrip™ and DensostripPrimer™ to provide a permanently watertight seal betweenprecast concrete units.

Country: ScotlandObject: Precast concrete unitsProblem: SealingProduct Densostrip Primer™solution: and Densostrip™

Project SummaryProduct type: Sealing Mastic

Densostrip™ was used to seal the jointsof the precast concrete unit trenchesthat carry services to the fountain.

The historic Ross Fountain.


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SeaShield Protection for Piles and Pipes - United Kingdom Vol: 35 No. 1, Date: 3. 2019, Page: 13

SeaShield™ Protection atFalmouth Fuel Piers World Fuel Services Europe Ltd has recently installed Winn &Coales (Denso) Ltd's SeaShield™ systems to protect both oftheir fuel piers, which are also part of the Eastern Breakwaterproject at Falmouth.

Sixteen support pipes on theold pier have been protectedwith SeaShield 100™ and nineSeaShield 2000 FD™ jacketshave been applied on the newpier. The materials were appliedon both piers using rope access.

SeaShield systems providelong-term corrosion control forsteel, concrete and timberstructures in the splash andintertidal zones. Theyaccommodate piles (such as atFalmouth) with cylindrical,hexagonal, square andH cross sections.

Country: United KingdomObject: Support Piles & PipesProblem: Corrosion preventionProduct SeaShield 100™ andsolution: SeaShield 2000 FD™


Sub Sea Splash Zone Coating

Pipes under the old pier protected with SeaShield 100™.One of the jetty piles on the new pierprotected with SeaShield 2000 FD™.

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Corrosion Prevention for Buried Water Pipes - Kingdom of BahrainVol: 35 No. 1, Date: 3. 2019, Page: 14

Designed primarily as aresidential development, it willalso boast a mix of lifestyle,commercial and retail outlets to

Denso Protects WaterPipeline in Madinat SalmanBahrain ProjectAECOM has been engaged by the Ministry of Housing toprovide the masterplanning, detailed design and costmanagement services for a project in the Kingdom of Bahrain.Madinat Salman (previously known as Al Madina Al Shamaliya),is a group of 10 reclaimed islands situated on the northerncoastline of the Kingdom of Bahrain. The islands are locatedwithin a twenty-minute drive of Manama city and a ten minutedrive from the Seef District.

support the community. Theoverall site covers approximately750 hectares. Al Madina AlShamaliya will provide a total of

Country: BahrainObject: Water mainProblem: Corrosion preventionProduct Densoclad Tapesolution: System™



The Madinet Salman islands development.


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Corrosion Prevention for Buried Water Pipes - Kingdom of Bahrain Vol: 35 No. 1, Date: 3. 2019, Page: 15

15,519 dwelling units with thecapacity to support a totalresidential population of98,935 people.

A Densoclad™ Tape systemwas chosen to protect theburied ductile iron water mainthat serves the newdevelopment and all of the pipelengths were pre-wrappedabove ground prior to theirinstallation.

The Densoclad Tape systemcomprises a coat of DensoPrimer D™, followed by DensylMastic™ to create a smoothprofile over joints etc. Finally awrap of Densoclad 55HT™ wasapplied to the pipe lengths witha 55% overlap forming a doublelayer wrap.

The pipe lengths were wrapped prior to installation.

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

Name: Title:

Company:

Address:

Phone: Email :

If you would like more information about our long-term corrosion prevention and sealing systems that dealwith the problem areas listed below, simply tick the boxes and email 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 metal roof purlins and metal roof sheets.

Protecting pre-stressing and post tensioning bridge cables and ground anchorages.

SUB SEA/SPLASH ZONE COATINGS

Maintenance corrosion protection for steel jetty piles.

Subsea pipelines and outfalls.

Protection of timber and concrete piling.

UK: [email protected] ● USA: [email protected] ● CANADA: [email protected]

AUSTRALIA: [email protected] ● NEW ZEALAND: [email protected] ● SOUTH AFRICA: [email protected]

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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261.3.2019 Vol 35 No.1 Quarterly Publication

WINN & COALES INTERNATIONAL LTD Denso House, Chapel Road, London SE27 0TR Tel: +44 (0) 20 8670 7511 Fax: +44 (0) 20 8761 2456 Email: [email protected] Web: www.denso.net

FM 01548 EMS 583748

winn & coales international ltd denso digest...denso house, chapel road, london se27 0tr,...

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