Grease on Propeller for Anti Fouling? - Page 2 - SailNet Community
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post #11 of 45 Old 07-08-2013
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Re: Grease on Propeller for Anti Fouling?

The idea with Lanoline (grease from sheeps wool) is you heat the prop first and then apply the Lanoline. Then you can recoat it whilst in the water.

I havent done it yet, but will thins time as propspeed et al is lousy unless a new prop.

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post #12 of 45 Old 07-08-2013
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Re: Grease on Propeller for Anti Fouling?

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Originally Posted by MarkofSeaLife View Post
The idea with Lanoline (grease from sheeps wool) is you heat the prop first and then apply the Lanoline. Then you can recoat it whilst in the water.

I havent done it yet, but will thins time as propspeed et al is lousy unless a new prop.
Propspeed goes on to old props just fine, but you do have to clean and buff the prop properly and apply the stuff properly also. I find it also seems to act as an insulator because my anodes have lasted nearly 3 times longer since I started using the stuff.. which at $50 an anode is a bonus.

It would be nice to know that Lanoline worked just as well (yes, I've heard you have to heat it first also - not too sure how you do that without causing other issues, maybe very careful use of a heat gun) but I suspect it won't last nearly as long.

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post #13 of 45 Old 07-09-2013
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Re: Grease on Propeller for Anti Fouling?

I slathered Vaseline on my prop a couple of years ago while it was out of the water and it did keep the prop clear for the better part of the season. It wasn't until the following spring that I had to clean the prop and even then it was only lightly fouled. Unfortunately this year I forgot the Vaseline when the boat was going back in so I wasn't able to treat it.
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post #14 of 45 Old 07-09-2013
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Re: Grease on Propeller for Anti Fouling?

There have been some recent very positive reports about using udder ointment in the UK boating magazines. It is certainly much cheaper than any other lanolin based grease, be it as nipple cream or of course the "proper" overprized maritime products. It does also contain cetrimide, an antiseptic. I do wonder if that might have a certain growth inhibiting role to marine fouling as well.
At 7.50 per 500 gram pot I've bought myself a tub for our outboard. It should be enough for many seasons. Lets see if this is going to be a success or an udder disappointment

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post #15 of 45 Old 07-09-2013
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Re: Grease on Propeller for Anti Fouling?

At one point there must have been 20 coats of various antifouling paint on my prop - none of which prevented the critters from attaching. One day, while on the hard, I completely cleaned every speck of paint from the prop, discovered it was bronze, then acting on a tip from a friend, I applied 3 coats of transducer paint, the same stuff that West Marine sells for about $26 for a spray can. The boat has been to the Florida Keys and back, it spent 3 months in Boot Key Harbor, where everything in the water is quickly covered with critters, and then back to the Chesapeake's upper reaches. The prop looks like I just painted it yesterday afternoon. It's clean as a whistle. It's the only thing in 60 years of boating that I found that actually works.

Good Luck,

Gary
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post #16 of 45 Old 07-09-2013
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Re: Grease on Propeller for Anti Fouling?

Regarding vaseline, or baby oil (I haven't tried either one), I don't see how they would stay attached on the prop with the forces at play, with a prop spinning at 2000-3000 RPM.

I would think that in short order, it would be all gone. But Just speculating, like I said I've never tried them.
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post #17 of 45 Old 07-09-2013
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Re: Grease on Propeller for Anti Fouling?

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Regarding vaseline, or baby oil (I haven't tried either one), I don't see how they would stay attached on the prop with the forces at play, with a prop spinning at 2000-3000 RPM.

I would think that in short order, it would be all gone. But Just speculating, like I said I've never tried them.
vaseline is pretty thick at room temperature, and even thicker at ocean temperatures. it is not water soluble, in fact it repels water. I guess a thin layer is able to stay on the surface of the prop.

All I know is that someone told me it worked, I tried it for myself, and it did!

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post #18 of 45 Old 07-09-2013
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Re: Grease on Propeller for Anti Fouling?

Interesting, thanks!

Yea, I wasn't thinking it would dissolve in water, just that the force of the water would wipe it off.

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post #19 of 45 Old 07-09-2013
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Re: Grease on Propeller for Anti Fouling?

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Originally Posted by travlineasy View Post
--- I applied 3 coats of transducer paint, the same stuff that West Marine sells for about $26 for a spray can. The boat has been to the Florida Keys and back, it spent 3 months in Boot Key Harbor, where everything in the water is quickly covered with critters, and then back to the Chesapeake's upper reaches. The prop looks like I just painted it yesterday afternoon. It's clean as a whistle. It's the only thing in 60 years of boating that I found that actually works. ---
Having spent a lot of time in Boot Key in the old days, I must say that I find that testimony convincing.
Thanks, Gary.

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post #20 of 45 Old 07-10-2013
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Re: Grease on Propeller for Anti Fouling?

I've been using lanolin for a few cycles now and can give a testimonial that it works great here in the PNW. I've always done it at haul out, which I do every two years. I've found that I am getting complete protection for nearly all of that time and our boat is heavily used. Here is a post I did with more detail: Stories of Aeolus- Our Gulf 32 Pilothouse: Lanonlin on prop really works!

And I've used Lanocote as well as generic Lanonlin, and though the Lanocote seems a bit denser, I have had the same results.

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