Protecting the North Sea

Citation

(1999), "Protecting the North Sea", Pigment & Resin Technology, Vol. 28 No. 5. https://doi.org/10.1108/prt.1999.12928eaf.002

Protecting the North Sea

Protecting the North Sea

Keywords: Jotun, Coatings, Marine environments

The supply vessel Skandi Stord, recently built at the Astilleros y Servicios Navales SA (Asenav), Valdivia, Chile, shipyard (Hull No. 122) for service in the North Sea, is protected by Jotun Paints coatings (Plate 2).

Plate 2The supply vessel Skandi Stord is protected by Jotun Paints coatings. The coating contract was won by the Jotun Group's Chilean company, Industrias Ceresita SA, Santiago.

Owned by District Offshore ASA, Norway, the vessel is equipped for oil recovery, firefighting and standby duties. With a length overall of 73.5m, breadth moulded 16.4m, depth moulded 8.0m and a draught of 6.9m, her deadweight is 2,900t. The Skandi Stord has a service speed of 1.5 knots and a full speed of 17 knots in close co-operation with the owners. Asenav informs us that it chose Jotun coating systems to provide protection against corrosion, abrasion and fouling. The coating contract was won by Industrias Ceresita SA, the Jotun group's Santiago-based Chilean company.

Jotun manufactures a comprehensive range of marine coatings and, using carefully chosen products from this range, systems were formulated to give cost-effective protection for the differing working areas on board the Skandi Stord.

For the hull below the waterline, the Jotun system comprised Jotamastic 87 epoxymastic, Safeguard coal-tar epoxy, and self-polishing anti-fouling Seamate HB.

Jotun Paints is said to be an innovator in epoxymastics, and Jotamastic 87 reportedly can be applied in high film thickness to give very good resistance to water, solvents and many chemicals. Claiming a low solvent content and no isocyanate, this product is believed to have a much reduced environmental impact, and reportedly complies with current NORSOK standards.

Antifouling Seamate HB 99 was specially developed for stationary structures, low-activity vessels and high-fouling areas. The standby functions of the Skandi Stord made her a suitable recipient.

The topsides, superstructure and decks of the supply vessel are also said to have benefited from treatment with Jotamastic 87 but, in these cases, the protective system was completed with Hardtop AS polyurethane topcoat which claims excellent gloss and colour retention. On the decks, the Jotamastic 87 is preceded by Penguard Primer, which is an epoxy primer based on a high molecular-weight epoxy resin which claims very good resistance to many chemicals and solvents.

Jotun is also a specialist in the protection of ballast tanks, and Balloxy HB Light, its state-of-the-art coating, was chosen for the Skandi Stord. A modified epoxy treatment claiming good penetration, this product is said to be free from the hazards of isocyanate and coal tar. Balloxy 14 B Light not only is light in colour to help application and inspection in dark restricted spaces, but also offers visual control over both mixing and applied thickness.

The interior of the engine room of the vessel is treated with Mammut Primer and Mammut Top Coat. According to Jotun these high-build, urethane-alkyd coatings form a system which is certified not to spread surface flame.

Liquid mud, recovered oil and sewage tanks of the Skandi Stord are treated with Tankguard HB, a high-build epoxy coating claiming a high resistance to a wide range of chemicals and solvents.

Details available from: Jotun-Henry Clark Ltd. Tel: + 44 (0) 171 481 2741; Fax: + 44 (0) 171 265 1836; E-mail: linda.diamond@jotun.co.uk