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Coral infestation

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Created by sailorsilas A week ago, 14 Feb 2026
sailorsilas
91 posts
14 Feb 2026 1:24PM
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My boat has been attacked by a coral infestation which looks like lots of little vines on the hull. The majority comes off with the power wash but the shapes are still stuck to the hull. If I sand it then the Coppercoat will also be removed. Does anyone know of a way to remove the residue?

Yara
NSW, 1314 posts
Sunday , 15 Feb 2026 10:08PM
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Acid wash, you can try industrial vinegar or ascetic acid.

sailorsilas
91 posts
Monday , 16 Feb 2026 5:18AM
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Thanks, I'll try

r13
NSW, 1714 posts
Monday , 16 Feb 2026 5:47PM
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Don't use acetone

forums.ybw.com/threads/coppercoat-advice.187844/page-2#:~:text=A%20couple%20of%20contributors%20mention,off%20with%20some%20general%20advice.

For acid wash or industrial vinegar suggest as mandatory to check with Coppercoat directly before you do anything.

forums.ybw.com/threads/coppercoat-cleaning.604105/

Ramona
NSW, 7737 posts
Monday , 16 Feb 2026 6:03PM
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Scotchbright with Metal Gleam. Don't waste time with vinegar. Life is too short.

woko
NSW, 1769 posts
Monday , 16 Feb 2026 7:02PM
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I was under the impression that copper coat needed to be sanded occasionally to expose fresh copper, but I have been wrong before

r13
NSW, 1714 posts
Monday , 16 Feb 2026 8:49PM
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Please communicate with Coppercoat

coppercoat.com/

sailorsilas
91 posts
Friday , 20 Feb 2026 10:38AM
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Thanks for the replies everyone. yes Coppercoat does have to be abraded from time to time. I didn't do it last time out but should have!
I have contacted Coppercoat in England and they have given advice.



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