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Old 12-30-2016, 01:43 PM   #2
koliver
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City: Saltspring Island
Vessel Name: Retreat
Vessel Model: C&L 44
Join Date: Nov 2007
Posts: 5,663
Quote:
Originally Posted by Gordon B View Post
Hi all,
I painted the boat bottom with a paint that has a lot of copper in it. I screwed up an painted the props and rudder.http://www.trawlerforum.com/forums/i...k/facepalm.gif Question; if I leave it on how fast will it corrode the steel? It is ablative paint. Do I risk it? Once the boat is in the water it will have light use for months, until restoration is complete.

Thanks
Most bottom paints in use where I have my boat have a high copper content.

Everyone I know paints their rudders with it, and most have SS rudders. I certainly do. I haven't noticed any deterioration of my rudders in 22 years, so whatever effect it has is negligible.

I also paint my props with the same paint frequently. For a few years I was leaving one blade unpainted, just to see if it made any difference. It does, as unprotected, the barnacles are bigger and more densely attached. Those prop barnacles will effect performance more than any other factor, so paint those props. I haven't seen any deterioration in the bronze props either.
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