July 13th, 2021 by . Posted in In Focus Marine

Intersleek ®

Combating micro-fouling on ships hull, maintaining vessel performance

Intersleek was launched in 1996 as the first patented biocide-free coating for the shipping industry. 25 Years later, it now has more than 5,500 applications and has helped save over $3 billion** in fuel costs. Based upon an inhouse AkzoNobel calculation.

Intersleek has set new standards for efficiency, performance and sustainability in the marine industry.

  • Performance – Long-term efficiency, fuel savings
  • Innovation – Pioneering slime release technology
  • Sustainability – Carbon credits, biocide-free

Intersleek 1100SR demonstrates the importance of providing choice and diversity to the industry. By developing coatings that recognize the operational requirements of ship owners and operators we continue to invest in more sustainable hull coatings.

Intersleek 1100SR

The first biocide free fouling control coating featuring patented Slime Release technology that combats micro fouling on ships’ hulls, maintaining performance throughout the docking cycle. It delivers outstanding macro and micro fouling control with improved static resistance, even in warm waters and is suitable for slow steaming. Slime that does build up during static periods is released by the movement of the ship through water. As a result vessels can achieve reduced drag, improved fuel efficiency and reduced CO2 emissions.

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Intersleek ®

The proof is in the polymer…
The new patented fluropolymer in Intersleek 1100SR  has been developed by enhancing the slime resistant polymer groups used in earlier generations of Intersleek. The tailored surface chemistry of this new technology specifically influences and resists the adhesion and settlement of organisms that make up slime colonisation.

Slime composition
Slime is a complex, varied and dynamic organism predominantly made up of bacteria and diatoms. There are thousands of individual species in the oceans that can result in varying slime film thicknesses, textures, compositions, and surface roughness on ships’ hulls. Slime begins to cultivate as soon as the vessel enters the water as bacteria populate the substrate and excrete Extracellular Polymeric Substances (EPS). EPS is what makes the surface feel “slimy” to touch.

The make-up of marine slime or biofilms is so diverse that samples from one part of a vessel could be completely different to biofilms from a few metres away. The composition of biofilms, show that they vary by geographic location, time of the year and vessel activity.

This research resulted in a new patent for controlling slime on ships’ hulls and we believe that we now have industry leading insight into slime formation, settlement, release and its impact on vessel operating efficiency.

Unrivalled expertise and experience in foul release coatings
With over 25 years experience in foul release coatings we are very much aware of the performance characteristics of the technology on ships in service. International® Paint launched the first and original silicone based Intersleek 425 in 1996, available for fast craft. In 1999 Intersleek 700 silicone technology was introduced delivering the benefits of foul release to deep sea scheduled vessels.

Intersleek ®

In 2007 the introduction of Intersleek 900, the original fluoropolymer technology, meant that foul release was available for all vessels above 10 knots. And now Intersleek 1100SR has become the optimal slime release coating for all vessels, even in warm waters and slow steaming. With over 1,600 individual applications, Intersleek has the largest foul release track record within the industry. The Intersleek brand is proven to deliver the very highest levels of biocide free fouling control.

Intersleek is the latest in a continuing evolution of products from the International brand designed to deliver significant through life operational, environmental and commercial benefits for vessel owners and operators worldwide.