A row of black piles on a tidal flat, with barnacles on their lower part

Keep it off

Keep it off: making ships, fishing gear and equipment harder for marine life to grip

Barnacles and algae both begin by gripping a material’s surface. We treat that surface with plasma and bond a fluorine-based antifouling agent to it, leaving a surface they struggle to grip. We use no copper, silver or other biocides.

Uses with a page of their own

Equipment, glass and paints

A walkway through equipment lined with pipes, ducts and a tank

Water intakes and cooling lines

We are considering treating the surfaces of ships’ water intakes and pipework, and of the intake equipment and cooling lines of power stations and factories, to hold back fouling and cut the chemicals now added to prevent it, such as copper ions and chlorine.

Talk to us about “Water intakes and cooling lines”
The building and walkway along the sea at our development site
Kure (Marine Craft Kazenoko)

Underwater glass (windows, cameras and more)

In KAKEN grant 22K04725 (fiscal 2022–2024), led by Professor Kuroda, our technical supervisor, glass plates and other materials were also tested in the sea. At Kure (Marine Craft Kazenoko) the same test went on after the period of the report, and the treated glass held up for 12 months. It turns slightly cloudy, but looks clear when it is in the water.

Source: Published report of KAKEN grant 22K04725

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A floating pier’s pile, thick with barnacles

Marine equipment and infrastructure

We are also considering extending the treatment that holds back fouling to marine equipment other than ships: offshore wind installations, subsea cables, piers, tidal power, filters for seawater desalination, underwater robots and more.

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Barnacles along the waterline of a painted hull

Working with paints

We are also considering ways to combine the treatment that holds back fouling with paints, for example by treating a surface as the base for the paint.

Talk to us about “Working with paints”

Tell us what you want to keep fouling off: what it is made of, how big it is and the waters it is used in.

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