Marine Link
Wednesday, October 18, 2017

Steel Surfaces News

SSPC Publishes Visuals for Waterjetting, Blast Cleaning

SSPC: The Society for Protective Coatings has published two new collections of surface preparation reference photographs: SSPC-VIS 4 and SSPC-VIS 5. SSPC-VIS 4 illustrates the appearances of steel surfaces prepared by waterjetting while SSPC-VIS 5 shows steel surfaces prepared by wet abrasive blast cleaning. Both contain a written guide and explanatory notes, as well as additional photographs that depict degrees of flash rust after cleaning. SSPC-VIS 4 and SSPC-VIS 5 were developed in collaboration with NACE International under the direction of the SSPC/NACE Joint Task Group on Wet Blast Visual Standards. SSPC visual standards and reference photographs are used to access the condition of coated and/or uncoated steel before and after cleaning…

Euronavy ES301 Surface Tolerant Anticorrosive

Sherwin-Williams offers Euronavy ES301, a solvent-free anticorrosive epoxy designed for application over marginally prepared surfaces. Sherwin-Williams acquired Euronavy in December 2008. “Euronavy ES301 is an extremely durable surface-tolerant coating that allows customers to protect their steel assets against corrosion in an extremely cost-effective way,” said Brad Rossetto, Vice President, Marketing, Sherwin-Williams Protective & Marine Coatings. The product can be applied with no dew point restrictions over damp steel surfaces and over flash-rust, reducing application time and costs. Coating can occur immediately after hydroblasting or other water preparation methods without drying.

Ruukki Expands Range of Raex Wear-resistant Steels

Direct quenched Raex wear-resistant steel is made in a range of thicknesses from 2 mm to 80 mm. (Photo: Ruukki Metals Oy)

Ruukki can now supply steels for all applications requiring wear-resistant special steels. Ruukki Raex special steel can withstand wear and surface pressure and the range has now been expanded to include the thicker wear-resistant steels needed, for example, in the mining industry, Raex said. Raex special steel is made in a range of thicknesses from two-80 mm. The new thicker Raex wear-resistant steels up to 80 mm can be used, among other things, to manufacture parts for heavy machinery and equipment designed for excavation, loading, transporting and crushing ore in mines.

Ecofix Corrosion Repair with Ecoshield Application

Image: Subsea Industries

Subsea Industries announced a new product for filling and building up a corroded and pitted steel surface to its original form prior to recoating with Ecoshield. According to the manufacturer, Ecofix is as tough as the steel itself, machinable and can be used to repair most pitting or corrosion damage on rudders, stabilizer fins, thrusters and other underwater gear. Ecofix is used in combination with Ecoshield, the ultimate rudder protection coating. When a rudder or other piece of underwater ship gear has not been properly protected, the surface will become corroded.

Ecofix Filler Coat Cuts Rudder Repairs Cost

Subsea Industries’ Ecofix is a cost-effective solution for the repair of corroded or pitted steel surfaces

With an increasing trend for thruster and rudder manufacturers finishing their products with self-cleaning protective hard coatings, Antwerp headquartered Subsea Industries has introduced a filler coating for use with its award-winning Ecoshield hard coat system. Ecofix, specifically formulated to provide shiprepairers and Original Equipment Manufacturers with a cost-effective solution for the repair of corroded or pitted steel surfaces, returns the thruster or rudder to its original state prior to touching up the repaired area with Ecoshield.

Sherwin-Williams Awarded for Work on USS Ronald Reagan

USS Ronald Reagan (U.S. Navy photo)

Sherwin-Williams said it was awarded Military Coatings Project Award of Excellence for exceptional coatings work on U.S. Navy’s Nimitz-class nuclear-powered supercarrierUSS Ronald Reagan at SSPC 2014. The award recognizes exceptional coatings work performed on U.S. military ships, structures or facilities. “This award is truly an honor for our company in partnership with the U.S. Navy and IMIA,” said Mark Schultz, Marine Project Development Manager, Sherwin-Williams Protective & Marine Coatings.

Tank Tests

The Salvage Association (SA) said last week that it has pinpointed phosphoric acid as another chemical cargo causing some anxiety to marine underwriters, following the controversy surrounding the carriage of calcium hypochlorite chemical cargoes in containers. The SA said in a statement its Singapore office has been involved in two cases where stainless steel tanks in chemical tankers have been attacked by the acid, leaving large black stains on the surface and in the worst case, pitting and grain boundary attack. The structural strength of the tanks is not affected but it is detrimental to other sensitive cargoes, and its unsightly appearance means the vessel could be rejected by cargo surveyors.

NSF Certification for PPG's Products, Coating Systems

Diane M. Kappas Vice President, Protective and Marine Coatings, Americas

PPG Industries’ protective and marine coatings (PMC) business announced that four individual coatings and primers and two combined coating-and-primer systems have been certified by NSF International for water-tank applications. AMERCOAT 133/844 pit-filler is a hand-applied coating designed to fill deep holes in pitted steel surfaces with a single pass. It features a 100-percent solids formulation and emits almost zero volatile organic compounds (VOCs), and it trowels easily to a smooth finish.

Fincantieri Building Second Italian Navy Patrol Ship

(Photo Fincantieri)

A steel cutting ceremony for Italy’s next Multipurpose Offshore Patrol Ship (PPA) took place at Fincantieri’s shipyard in Riva Trigoso (Genova), officially marking the beginning of construction works on the second unit. The unit will be delivered in 2022 and it is part of the renewal plan of the surface operational lines of the Italian Navy vessels, approved by the Government and Parliament and started in May 2015. The steel cutting ceremony of the first PPA took place in February 2017.

Hempel Launches New Cargo Hold Coating

Leading coatings manufacturer Hempel announced today the launch of Hempadur Impact 47800, a new dedicated coating for bulk carrier cargo holds. Hempadur Impact offers high-end abrasion, impact and corrosion resistance, and completes Hempel’s range of cargo hold coatings. Hempadur Impact is a new dedicated cargo hold coating for shipowners who want a high-performance cargo hold coating with a very attractive price/performance ratio. The coating protects ship cargo holds from both mechanical damage and the severe abrasion caused when loading hard angular cargoes. With a 7½ year major repair interval, it enables shipowners to extend drydocking periods between major cargo hold coating repairs and so reduce maintenance costs.

Bolidt Underlay Worth Weight for ConocoPhillips

 ConocoPhillips has selected BOLISCREED 400 for its North Sea unit (Photo: Bolidt).

Efforts by ConocoPhillips to achieve the lightest weight possible for the superstructure of its Ekofisk L accommodation facility have been demonstrated by its selection of an underlay construction material which will remain unseen. The oil major has selected BOLISCREED 400 for the high-profile North Sea unit, which will replace the longstanding Ekofisk H and Ekofisk Q as part of ConocoPhillips plans to prolong activities in the Ekofisk field by up to 40 years. Ekofisk L’s topside is currently under construction at Singapore’s Sembawang (SMOE) shipyard…

Bolidt Underlay Worth Weight for ConocoPhillips

A ConocoPhillips superstructure in the Ekofisk field (Photo: Bolidt).

Efforts by ConocoPhillips to achieve the lightest weight possible for the superstructure of its Ekofisk L accommodation facility have been demonstrated by its selection of an underlay construction material. The oil major has selected Boliscreed 400 for the high-profile North Sea unit, which will replace the longstanding Ekofisk H and Ekofisk Q as part of ConocoPhillips plans to prolong activities in the Ekofisk field by up to 40 years. Ekofisk L’s top side is currently under construction at Singapore’s Sembawang (SMOE) shipyard…

60th PSPC Gap Analysis for Chinese Shipyards

Lloyd’s Register Classification Society (China, [LRCS]) and International Paint have delivered their 60th training course aimed at bringing Chinese shipyards up to speed with the International Maritime Organization’s (IMO) new Performance Standard for Protective Coatings (PSPC) on commercial ships. The joint initiative, which ultimately promotes safe and sustainable shipping, has in its first two years re-enforced the reputations of the entities of the Lloyd’s Register Group as the first to provide timely technical advice to industries in the energy and transportation supply chains. Gap analyses, which assess a shipyard’s current coating practices against the new regulatory requirements…

Coatings & Corrosion Control: Microbiologically Influenced Corrosion (MIC)

Recently, the use of certain environmental-friendly waxes or "semi-hard coatings", used by barge fabricators to protect the internal void walls and floors of marine double-hulled steel barges from corrosion, have fallen under scrutiny by some barge owners/operators. It is believed that certain paraffin wax coatings act as a food source for certain living corrosive microorganisms. These single-celled organisms are associated with a phenomenon known as Microbiologically Influenced Corrosion (MIC) that can cause localized pitting and eventually leaks in steel barge voids. This following examines the biological and chemical research that has recently been performed on the Jotun Paints, Inc, "beeswax" coating by two independent laboratories.

OTI Installs Thordon's Largest TG100 Seal

Photo: Thordon Bearings

Offshore Towing Inc (OTI) has completed the refurbishment of its 1974-built 9000hp-class tug Zion Falgout at the Conrad Deepwater shipyard, in Morgan City, La. The milestone project involved the retrofitting of TG100 seals in what marks OTI’s first mechanical shaft seal installation and the largest diameter TG100 series seals ever supplied by Thordon Bearings. An 11.75in (298mm) diameter seal was installed to each propeller shaft of the 66.88t bollard pull twin-screw workhorse.

Rugged Propulsion System Designed for the Swamps

Metal Shark 21 Riverine equipped with Swamp Shark surface drive, shown powering through vegetation in Louisiana’s Atchafalaya Basin (Photo: Metal Shark)

A new all-terrain vessel propulsion system specially engineered and built for operation in extreme shallow water, riverine and mud flat environments will safely and reliably propel a vessel through dense vegetation, mud and debris-strewn waters. The highly durable Swamp Shark Drive system has been introduced through a partnership between Louisiana-based boat builder Metal Shark has partnered with Angelle Development, LLC of Breaux Bridge, La. “I began designing this system and building the initial prototype in 2011 with the goal of creating the ultimate ‘go anywhere…

SCHOTTEL's New ProAnode Goes to Market

The new position in the tail of the nozzle not only shields the anodes, but also offers additional operational potential as it contributes to the optimal hydrodynamic flow of the nozzle. (Photo: SCHOTTEL)

The first SCHOTTEL Rudderpropeller with the newly developed and patented ProAnode has left the German factory in Doerth. According to the manufacturer, ProAnode’s new form and position sets higher standards in corrosion protection, thereby extending the lifecycle of the thruster. Furthermore, moving the position of the anode from the outside surface into the cross-section of the nozzle tail leads to subsequent operational benefits, such as reduced flow interference, resulting in fuel savings.

Cautious Optimism on Multipurpose Shipping: Drewry

Graph:  Drewry Shipping Consultants Limited

Recovering demand for multipurpose shipping combined with improved market conditions for competing sectors will result in rising market share for the multipurpose shipping fleet and a recovery in freight rates in 2018, according to the latest Multipurpose Shipping Market Review and Forecaster report published by global shipping consultancy Drewry. Although China’s plans to curb steel production in an attempt to clean-up the air pollution blighting its cities may well slow steel exports over the short term, the longer term outlook is still positive for the multipurpose and heavy lift sector.

St. Lawrence Seaway Cargo Volumes Buoyant

The Canada-flag Algolake loading wheat at the CHS elevator in the Port of Duluth-Superior. (Photo by: Terry White / Chamber of Marine Commerce)

As marine shipping continues to support the growth of the Canadian and U.S. economies, St. Lawrence Seaway cargo shipments to-date for 2917 are 14 percent ahead of 2016 volumes. Total cargo tonnage from March 20 to September 30 reached 24.3 million metric tons – 3 million metric tons more compared to the same period in 2016, according to The St. Lawrence Seaway Management Corporation. “Our results point to the strength of the Canadian and U.S. economies. Export shipments of mined products such as iron ore and dry bulk via the Seaway have grown dramatically this year…

Feature: The Corrosion Control Challenge

Last year Germanischer Lloyd and Mühlhan sponsored a Surface Protection Symposium in October in Lübeck, dealing with the topic of value retention in the shipping industry. The outcome was a lively exchange of ideas among shipowners, coating material manufacturers and surface protection experts. Up-to-date findings from research were discussed with the same vitality as problems from workaday practice. This report provides an overview of the events involved. After Dr. Richter from Germanischer Lloyd had welcomed those attending, Mr. Harms — also from Germanischer Lloyd — described both the development and current status of international stipulations for the assessment of corrosion in water ballast tanks…

Whirling Steel Blades

Aurand's M and K tools, with their whirling steel blades, shape up any surface prior to recoating or repainting. The M tool is slightly heavier, and more aggressive than the K tool, and is typically used on horizontal surfaces. Adjustable depth settings protect the underlying surface, and prevent overloading, stalling and excessive cutter wear. Both are available in many widths, and in pneumatic or electric models. A dust collector is also available for each model.

PPG PMC to Offer AMERCOAT Coatings in Mexico

PPG Industries' protective and marine coatings (PMC) business announced that customers in Mexico can order AMERCOAT brand products directly from PPG. -AMERLOCK surface-tolerant epoxies protect steel and concrete structures such as offshore platforms, petroleum processing plants, storage facilities and marine structures in severe environments. Available in a wide range of colors and low-VOC (volatile organic compound) formulations, Amerlock epoxies are engineered to prevent film pinholing and solvent entrapment at the substrate/coating interface, a common site of coatings failure with conventional epoxies and lower-solids systems. -DIMETCOTE inorganic zinc primers are designed for protection of carbon steel against corrosion.

Coatings: Metal Fusion Helps Stop Corrosion

New advances in metal fusion technology produce a metalized coating with no porosity, which can be applied at rates similar to those achieved by airless painting practices. The substrate temperature does not affect the process, and there is no curing time. The competitive process results in extremely long term near permanent corrosion protection, which is designed to be competitive in price with conventional corrosion systems. High speed metalizing of a variety of substrates can be accomplished rapidly under harsh field conditions. As there is no cure time required for the process, which can be used to apply up to 35 mils with only one coat, the application time is often much reduced from a conventional corrosion prevention system.

Maritime Reporter Magazine Cover Oct 2017 - The Marine Design Annual

Maritime Reporter and Engineering News’ first edition was published in New York City in 1883 and became our flagship publication in 1939. It is the world’s largest audited circulation magazine serving the global maritime industry, delivering more insightful editorial and news to more industry decision makers than any other source.

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