Testimonial to lanolin to prevent prop fouling - SailNet Community
 
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post #1 of 10 Old 07-09-2012 Thread Starter
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Testimonial to lanolin to prevent prop fouling

I've just posted my experience with using lanolin on my prop to prevent fouling and you can find the full story here: Stories of Aeolus- Our Gulf 32 Pilothouse: Lanonlin on prop really works!

In short, to my amazement, it works great! And couldn't be easier, or cheaper to do. Don't know about other waters, but here in the Salish Sea, it's a winner.

Aeolus
Gulf 32
Bainbridge Island, WA

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post #2 of 10 Old 07-09-2012
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Re: Testimonial to lanolin to prevent prop fouling

I have also been told if the first time you put lanolin on a bronze prop you should bake it in a mod hot oven, then use it raw from then on. I have a Kiwi prop so I cant bake it but I do get a season out of it.

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post #3 of 10 Old 07-09-2012 Thread Starter
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Re: Testimonial to lanolin to prevent prop fouling

I had heard this too, which makes some sense given the viscosity of the lanolin when cold. I believe it works partly because it penetrates all the pores in the metal which both prevents growth and helps it adhere. In my case, I applied it in the sunshine on a warm day, and this seemed to work fine. The lanolin warmed up to a nice liquid consistency and I used a putty knife to smash it in and spread it around.

It is really pretty amazing that it lasts that long, but I guess the movement of the water around the prop cannot sufficiently abrade the metal to remove the cold and sticky lanolin.

Then again, we motored around Desolation Sound last summer where water temperatures are over 70 degrees and it clearly did not affect the lanolin negatively, so perhaps water temperatures below 90 or something are not important.

Aeolus
Gulf 32
Bainbridge Island, WA

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post #4 of 10 Old 07-09-2012
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Re: Testimonial to lanolin to prevent prop fouling

As long as I keep my bronze prop shiny, I havent had a fouling problem with it.

Brent Swain, Boat designer, Builder, and author of "Origami Metal Boatbuilding"
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post #5 of 10 Old 07-09-2012
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Re: Testimonial to lanolin to prevent prop fouling

I use vaseline on my prop, and it lasts a long time too!

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post #6 of 10 Old 07-09-2012
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Re: Testimonial to lanolin to prevent prop fouling

Cool idea! I just had mine painted, and I bet it cost a LOT more than lanolin!! Good post.

Brian

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post #7 of 10 Old 07-09-2012
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Re: Testimonial to lanolin to prevent prop fouling

I took about 20 layers of paint off my bronze prop this spring and painted it with transducer paint. I'll let you know how it held up in October when I have the boat pulled to clean the bottom prior to heading south for the winter.

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post #8 of 10 Old 07-10-2012
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Re: Testimonial to lanolin to prevent prop fouling

Quote:
Originally Posted by bwindrope View Post

Then again, we motored around Desolation Sound last summer where water temperatures are over 70 degrees and it clearly did not affect the lanolin negatively, so perhaps water temperatures below 90 or something are not important.

And where exactly was that?!?! I've heard of fabled warm swimming grounds up in Desolation but every time I go for a swim up there I find myself asking "What's that lump in my armpit? Oh! It's one of my nuts!"


In Canada you can buy lanolin grease in a spray can. Great stuff, I used it for everything!


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post #9 of 10 Old 07-10-2012
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Re: Testimonial to lanolin to prevent prop fouling

Will this also work on an aluminum prop on an O/B? Mine is in a lazarette and does not raise up out of the water. I just scraped it this weekend, and was not happy with the amount of stuff that came off after only a month in the water.

1965 Oday Tempest #80
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post #10 of 10 Old 07-10-2012 Thread Starter
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Re: Testimonial to lanolin to prevent prop fouling

Hey Medsailor, I know that lump in my armpit feeling but it only happens in the San Juans and south 45-50 degree water year round. But from the Gulf Islands north, it just gets warmer and warmer. The most famous place for warm water is Pendrell Sound, but even the environs nearby have water temperatures from 70-80, and not just at the surface. It goes swimming deep.

No one around Seattle believes me, then again, they don't even know that Canada exists, not to mention places like Desolation Sound Truth is, I grew up in SoCal and the water there in Desolation Sound is warmer than anything we ever had at Huntington or San Diego. My family lives in the water there all day long and we will be there for two weeks at the start of August. Can't wait!

Aeolus
Gulf 32
Bainbridge Island, WA

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