Prop...painting it - Page 2 - SailNet Community

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  #11  
Old 03-26-2012
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Re: Prop...painting it

With the Pettit Zinc Coat, the hardest part is making sure your running gear is nice and clean. Assuming that, you can apply 3 coats of paint in less than 10 minutes. Comes in a spray can. No need to prime. Easy and cheap. Doesn't get any better than that.
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Old 03-26-2012
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Re: Prop...painting it

rather than the Pettit brand ($$) try the cheaper alternative from Lowe's. Same ingredients, much lower price.
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Re: Prop...painting it

Pettit Zinc Coat as mentioned usually works great, I had been using it for several years with great results, only the last year, 2010 season, did I see some barnacle growth on the prop and shaft, but that summer we had very high water temps, so not much of anything faired well. Still, the growth came off easily when the boat was pulled with a pressure washer and some scraping.

http://www.pettitpaint.com/fileshare...ds/1179320.pdf



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antifouling for a bronze propeller
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Re: Prop...painting it

Thank you to everyone. I work in IT, and all my list servs I use for my job this is the best one....
You guys rock!
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Old 03-26-2012
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Re: Prop...painting it

Great advice on the Pettit product! Thanks everyone!

So...... if regular copper bottom paint eats bronze...... should I not be painting my bronze through-hulls with bottom paint? All the other kids are doing it.

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Old 03-27-2012
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Re: Prop...painting it

Quote:
Originally Posted by MedSailor View Post
So...... if regular copper bottom paint eats bronze...... should I not be painting my bronze through-hulls with bottom paint?
It doesn't. Don't worry about it.
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Re: Prop...painting it

I've been told that a well polished surface is harder for hard growth to attach to. I had my prop repaired this winter and it is so shiny you can see yourself in it. I can't get myself to paint it. I will let you know in the Fall how this works out. We will typically have a half dozen barnacles per blade. My best estimate is we will only have 5 this year...........
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Re: Prop...painting it

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Originally Posted by Fstbttms View Post
It doesn't. Don't worry about it.
Actually I'm not particularly worried about it, exactly BECAUSE everybody does it, including commercial boats. It just causes me to question the wisdom of not painting the bronze prop with copper paint. Why would one be a no-no and the other okay?

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Re: Prop...painting it

Quote:
Originally Posted by MedSailor View Post
Actually I'm not particularly worried about it, exactly BECAUSE everybody does it, including commercial boats. It just causes me to question the wisdom of not painting the bronze prop with copper paint. Why would one be a no-no and the other okay?

MedSailor
The reason given is that electrolysis causes dezincification of the bronze. That said, I put regular bottom paint on the prop of my previous boat for years and never saw that problem. I used the Pettit Zinc Barnacle spray last season with mixed results. Better than nothing but prop still needed regular cleaning to remove growth.
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