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Foolishness323 04-21-2003 12:27 PM

Antifouling Prop & Shaft
I just finished scraping and sanding a season''s worth of barnacles off the bronze propeller and shaft on my boat. Any advice on antifouling coatings for a prop/shaft. I know most antifouling paints are a no-no on bronze. The few paints I''ve seen made specifically for props or drive shafts are for aluminum and I''m not sure if they are appropriate for bronze.

clayton 04-24-2003 07:27 AM

Antifouling Prop & Shaft
I''ve used Pettit Antifouling Blue, (with copper), on my bronze prop and ss shaft for years. I''ve not noticed any damage from electrolysis.

Anybody else out there with a comment?

bbracken 04-27-2003 10:06 AM

Antifouling Prop & Shaft
more than a year ago the sailnet website recommended a barrier coat on my prop and shaft before applying anti fouling paint. Of course I leave untreated space for the zinc. I have had much better success than without the barrier coat. No damage either.

nauticalrich 04-28-2003 06:31 AM

Antifouling Prop & Shaft
Are you guys saying that some paints can cause damage? If so what paint should you not use?

Of course I am aware that you do not paint the surface where the zincs are attached.

GordMay 04-28-2003 11:24 AM

Antifouling Prop & Shaft
Copper based paints cause damage.

edguy3 12-06-2009 12:29 PM

This thread is a bit dated. Any updated suggestions for coating the prop and shaft?

Here are my before ;) and after :eek: pictures:

June 2009

November 2009:
In addition to the sea fauna, you can see black caulk where the strut had been reattached mid-season from a Delaware bay crab trap fouling.

Time to get out the power washer and new Zincs.

T37Chef 12-06-2009 04:12 PM

Pettit Barnacle Barrier Zinc Spray

T37Chef 12-06-2009 04:15 PM

edguy3 12-07-2009 09:26 AM

Thanks. (not sure how I missed that topic in my search.)

7Psych 12-07-2009 10:24 AM

Any one try Prop Glop? I've used Prop Speed with excellent results, but it's prohibitivly expensive. Prop Glop seems new to market and much less expensive.

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