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International Paint Bows 3 Antifoulings

Tuesday, March 5, 2013

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International Paint has launched three new-technology fouling-control coatings that it says offer "a sea change in hull performance" not available since the era of tributyltin coatings.

Intercept 8000 LPP is a patented biocidal antifouling that reportedly offers predictability in hull coating performance; Intercept 7000 is an economical version of Intercept 8000 LPP; and Intersleek1100SR is billed as "the industry’s first patented biocide-free slime release technology."

"Designed to address the industry issues of predictability in antifouling performance not seen since the days of tributyltin and the difficult issue of slime fouling on ships hulls, the two new technologies are set to improve vessel operating performance, increase efficiency and help control fuel costs and emissions," according to International Paint.

International Paint Antifoulings
Images: International Paint

International Paint says its new antifouling technologies can "improve vessel operating performance, increase efficiency and help control fuel costs and emissions."

Intercept 8000 LPP

This new biocidal linear polishing polymer antifouling features International Paint's patented Lubyon technology, which "reacts with seawater via a constant surface active zone releasing only the optimum
amount of biocide over the scheme life to control fouling settlement," the company says.

When the coating is immersed, the seawater has a lubricating effect, resulting in less friction and less drag. The manufacturer says Intercept 8000 LPP reduces fuel consumption and associated emissions by 5 percent annually, compared to "typical controlled depletion polymer antifoulings."

The superhydrophilic coating surface also swells on contact with seawater, "helping to smooth out imperfections and potentially further reducing drag," the manufacturer says.

The biocide release rate is largely unaffected by seawater temperature, allowing the product to be used year-round across global routes, for in-service periods up to 90 months, according to International Paint.

Intercept 8000 LPP

Full application of Intercept 8000 LPP is shown on (left) a 300,000 DWT VLCC and the underwater hull of a 37,000 DWT tanker. The company says the coating offers low levels of overspray, reduced waste, and a smooth finish.

The product is designed to deliver consistent, predictable linear polishing, allowing ship owners and operators to plan and budget effectively throughout the vessel's dry-dock cycle, the company says.

Designed for the deep-sea market at newbuilding and maintenance and repair, the coating has been
extensively monitored with in-service performance validated on containers, tankers, bulk carriers and LNGs representing over 4 million dwt, the manufacturer reports.

Intercept 7000

Intercept 7000 is billed as an economical version of Intercept 8000 LPP. Intercept 7000 also incorporates Lubyon polymer technology and "features all of the attributes of a typical mid-range biocidal
antifouling product with the added benefit of linear polishing," the company reports.

Intercept 7000

International Paint compares test patches from a container vessel after six months of trading in the Indian Ocean. At right is a mid-range silyl acrylate SPC.

Intersleek 1100SR

International Paint calls new Intersleek1100SR "the industry’s first biocide-free fouling-control coating featuring unique, patented slime-release technology."

The coating is designed to combat microfouling on ship hulls, in order to maintain performance throughout the docking cycle.

Designed for all commercial vessels, even when slow or ultra slow steaming, the new fluoropolymer technology "tackles the market’s age-old ‘slime challenge’" with macrofouling and microfouling control and good static resistance even in warm waters, according to International Paint. The new formulation enhances the slime-resistant polymer groups used in earlier generations of Intersleek coatings.

Intersleek 1100 sr

International Paint offers this comparison of slime removal at 0 to 3 knots.

The company calls slime "a complex, varied and dynamic organism" that costs shipping companies billions of dollars in fuel and millions of tons of carbon dioxide emissions each year.

The company cites a formula recently produced by Michael P. Schultz, a professor at the U.S. Naval Academy, that calculated the annual effects of slime at 44 million extra tonnes of bunker fuel, $28.6 billion in additional fuel costs, and an extra 134 million tonnes of CO2 emissions.

With Intersleek 1100SR, the manufacturer says, slime that can build up during static periods is released by the vessel's movement through water. The product's introduction caps three years of research and four years of laboratory and in-service testing.

'Real Choice'

“Amid record high bunker fuel prices and lack of liquidity within the shipping industry, the economic importance of underwater hull condition cannot be understated," said Paul Robbins, Marine Marketing Director at International Paint.

Robbins said the new coatings demonstrate "our commitment to providing customers with real choice and the broadest range of fouling control solutions that meet the specific needs of their vessels, fleets and operational preferences.”

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Tagged categories: Antifoulants; Emissions; Fluoropolymer; Foul release; International Paint; Marine Coatings; Polymers; Shipyards

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