I need to coat my prop and shaft with somekind of antifouling to keep the growth off.Anyone know what's best to use since clear spray is not available anymore?
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Antifouling
I coat my shaft and props with the same antifouling paint I use on the boat bottom. Just keep it away from the front and rear of the cutlass bearing.Water needs to flow through the bearing. I never have had a problem. I have been told if you use the boat everyday it's a waste of time but I am a weekend boater.
I coat my shaft and props with the same antifouling paint I use on the boat bottom. Just keep it away from the front and rear of the cutlass bearing.Water needs to flow through the bearing. I never have had a problem. I have been told if you use the boat everyday it's a waste of time but I am a weekend boater.
One Additional Point
David, You're going to need to use a modified epoxy paint on the prop & shaft. Ablatives are designed to "wash away" over time on a normal hull, but on a shaft & especially the prop, ablatives won't last long enough. John's right to stay away from the cutlass bearing...it's going to need water to lubricate & cool itself, but you should also not paint the zincs or underneath where the zincs attach to the shaft. Bottom paint could electrically isolate the zincs and render them useless. Good luck! Allen Schweitzer s/v Falstaff C-30 Hull# 632
David, You're going to need to use a modified epoxy paint on the prop & shaft. Ablatives are designed to "wash away" over time on a normal hull, but on a shaft & especially the prop, ablatives won't last long enough. John's right to stay away from the cutlass bearing...it's going to need water to lubricate & cool itself, but you should also not paint the zincs or underneath where the zincs attach to the shaft. Bottom paint could electrically isolate the zincs and render them useless. Good luck! Allen Schweitzer s/v Falstaff C-30 Hull# 632
I use ablative paint...
...and haven't had a problem in 10 years. I do about 100 hours a season under power and sail the rest. The paint (Micron CSC) stays put.
...and haven't had a problem in 10 years. I do about 100 hours a season under power and sail the rest. The paint (Micron CSC) stays put.
Isolate the copper
It has been my experience that copper-based bottom paint will not work on the prop and shaft unless the paint is electrically isolated from the underlying metal. I had to scrape barnacles and other growth off the prop and shaft every year, until I began to apply two coats of Interlux barrier coat to the cleaned metal, under the copper bottom paint. I understand you can also keep a clean shaft by removing the zinc's but I don't recommend it. Check the Archives.
It has been my experience that copper-based bottom paint will not work on the prop and shaft unless the paint is electrically isolated from the underlying metal. I had to scrape barnacles and other growth off the prop and shaft every year, until I began to apply two coats of Interlux barrier coat to the cleaned metal, under the copper bottom paint. I understand you can also keep a clean shaft by removing the zinc's but I don't recommend it. Check the Archives.
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