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Old 07-08-2013
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Grease on Propeller for Anti Fouling?

This year when I was working on the bottom I put “PETTIT Zinc Coat Barnacle Barrier” on my propeller and shaft and it has not worked well so far. I dove on the boat over the weekend and was unpleasantly surprised by hundreds of little barnacles covering the prop and shaft. I am out sailing at 2-3 times a week so the boat is not exactly sitting there unused for weeks at a time. Which leads me to my next question… I have read people using some sort of grease or even baby diaper rash creams on their props with success. Has anyone here used or had any success with these methods if so what did you use, and can it be allied in the water?
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Old 07-08-2013
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Re: Grease on Propeller for Anti Fouling?

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Originally Posted by mm2187 View Post
I have read people using some sort of grease or even baby diaper rash creams on their props with success. Has anyone here used or had any success with these methods if so what did you use, and can it be allied in the water?
Even if it does work (which I doubt), it is unlikely to last long on a boat that sees as much use as yours. And no, it cannot be applied in the water.

There is a product that claims it can, however I have had no success with it:

LanoCote Prop & Bottom
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Re: Grease on Propeller for Anti Fouling?

We had no success with paint on our propeller last time around.
This time we are trying straight up Lanolin. (It is an ingredient of some diaper rash creams and the main ingredient of the Lanocote product previously mentioned)
We applied it two months ago while we were on the hard.
So far so good. There is absolutely no growth on the propeller, while the bottom paint already sports a green fuzz. We just recently put in 75 hours of motoring over a two week period so it will be interesting to see if that has worn it off....
We are in the PNW, so cold water.....I am not sure how an in the water application would go. It might be hard to spread.
I think it is worth a try though. Theres nothing to lose
Lanolin is cheap, can be purchased at the pharmacy, non toxic and renewable product that will not harm anything....including your prop and shaft.
And if it does not work, you can use it to keep your skin soft.
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Re: Grease on Propeller for Anti Fouling?

When I used Desitin, a baby rash cream, I had a load of barnacles on the prop -- perhaps more than if I hadn't used the Desitin.
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Re: Grease on Propeller for Anti Fouling?

Regarding the Lanocote product- I was unable to get it to adhere to the prop I was trying to put it on in 50° water. Haven't tried it since although we are now approaching 70° here.
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Re: Grease on Propeller for Anti Fouling?

mm2187

Last yr when we made a stop in Key Largo for anew alternator on our trip north we found a product that they are using on large power boats for anti fouling on the shafts and props. It was a two part system called VELOX PLUS. They swore by it I believe it to be expensive and we have not tried it. It might not be cost effective for the small amount that a sailboat would use. Something to look into tho.

peter
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Re: Grease on Propeller for Anti Fouling?

I had the same experience with Pettit Barnacle Barrier this year on the northern Chesapeake, yet it has worked for me in the past. I had put two good coats on the prop and splashed the boat at the beginning of April. The boat was hauled for a pre-sale survey in mid/late May and the prop was covered in barnacles. The funny thing was that the worker doing the haul grabbed a can of the Pettit product and told the buyer that she should be using it to prevent that problem. Same advice I would have given in the past. Don't know what to think now.
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Re: Grease on Propeller for Anti Fouling?

Although not particularly cheap, Propspeed works fine.. just use that and forget about it.
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Re: Grease on Propeller for Anti Fouling?

Not good news to hear that the Pettit Zinc Banacle Barrier Coat is working anymore, I have always had success with it, as did I with Petit SR 40/60 bottomw paint...but it seems this year on the water line I have a barnacle growth and fuzz after only two months in the water! WTF

Some others have reported the same thing on their hulls, next time out I will check our prop and see how its doing?

I have heard of using a sharpie on your prop? and Vaseline? I have used Vaseline on my paddle wheel with prety good success
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Re: Grease on Propeller for Anti Fouling?

have seen great success with propspeed but is pricey and can be finicky and not work if not applied correctly. I always spread the squeeze out from max prop grease over the prop may give it a little time. Also have seen boaters heat up toilet bowl wax & spread it on but can't a test to it's effectiveness. Also mind the west marine advise. their are some great sailors and boat people @ west but I've head some strange advise. A couple weeks ago a client was told to just sand the boat with 600 grit wet dry & his boat would come out shiny again. this is only half advise. They didn't tell him to use a sanding block ,finger markes prevalent and wasn't told about having to buff it either. Make sure your advise is coming from the store pro not hearsay.
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