antifouling paint

American  

noun

Nautical.

1. paint applied to the portion of a hull below the waterline to poison or discourage marine animals and plants that would otherwise cling to it.

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Etymology

Origin of antifouling paint

First recorded in 1865–70

Example Sentences

He said he’s had to start coating the bottom of his river boats with antifouling paint to prevent barnacles and other marine organisms from growing amid saltwater intrusion.

From Washington Post • Oct. 17, 2018

Such pitting comes from electrolytic corrosion from dissimilar metals: the copper in the antifouling paint and the aluminum of the lower unit.

From Time Magazine Archive

For the best-looking job, refinish and paint the lower unit with its original color primer and paint before applying a few coats of antifouling paint.

From Time Magazine Archive

The good news is that antifouling paints that are safe to use on lower units look more like clear acrylic than antifouling paint.

From Time Magazine Archive

Her antifouling paint was clean, and her lines beneath the swell of quarter and bows were fine.

From The Buccaneer Farmer Published in England under the Title "Askew's Victory" by Bindloss, Harold