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Old 06-05-2016, 01:56 PM   #21
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A local boat had some sort of electrolysis "event" where his prop went anodic. That is never good, and we think we have the issue resolved. But what happened was anywhere the propspeed coating was imperfect, like blade edges, the corrosion was severe enough to destroy the prop. If prop was not coated, the metal loss would have likely been spread of a larger area and prop salvageable. Maybe.
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Old 06-05-2016, 04:21 PM   #22
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Oliver does the little baby propeller fold or feather?
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Old 06-05-2016, 04:25 PM   #23
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Oliver does the little baby propeller fold or feather?

Parks, It folds.
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Old 06-05-2016, 04:42 PM   #24
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I had almost exactly the same experience & I agree with David.
If it's gone in one season it sounds like an improper application issue to me.
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Old 06-05-2016, 04:47 PM   #25
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Preparation is the key to long life from Prop Speed and IMO the only way to do a 100% clean is to soda blast every thing that will be painted .
Its the little bits of old paint under the Prop Speed that contaminate the PS and cause most problems .Another thing here in Ozzwhere I am the location of where one moors there boat can make a difference of 12 to 24 month life of PS
Proper prep is one of the keys. But soda blasting is not the only answer.

Another important key is proper application.

Mess up either of those and you've wasted your money.
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Old 06-05-2016, 04:49 PM   #26
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Have a haul-out annually if for nothing else to treat the propeller.

Not everyone has the money to burn on a yearly haul out just to do their prop Mark.
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Old 06-05-2016, 05:00 PM   #27
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Not everyone has the money to burn on a yearly haul out just to do their prop Mark.

That may be true but it would be a wise choice to purchase a boat from a previous owner like Mark.
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Old 06-05-2016, 05:13 PM   #28
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That may be true but it would be a wise choice to purchase a boat from a previous owner like Mark.
Yeah, if you can find the the exact kind of boat you're looking for and it happens to be owned by the handful of other people out there who pull their boat out every year just so they can have their prop cleaned.
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Old 06-05-2016, 05:22 PM   #29
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Yeah, if you can find the the exact kind of boat you're looking for...

Is that even possible? Boats are compromises.
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Old 06-07-2016, 06:22 PM   #30
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Thanks for the feed back. Very helpful.

I have talked to the local and Corp rep at prop speed, and they can't promise if it will help, and I don't blame them for their reply. But, It is worth a try.

I understand the prep is key, and being an anal engineer, I will make sure that occurs.

I haul out annually, so I can monitor.

Regarding why the pitting is occurring, you don't want to hear it. I could write a 10 page case study on that subject, so I won't bore you with the details.

Lately I am thinking it MAY be related to a casting issue of the props. Again, long story, but the pitting has slowed down by quite a bit.

I am in the water, under the boat every few weeks, year round, so I keep an eye on it.
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Old 06-07-2016, 08:00 PM   #31
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Your boat is built like a tank, and I mean that in a complimentary way.

Quote:
Originally Posted by markpierce View Post
Have a haul-out annually if for nothing else
to treat the propeller.

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Old 06-07-2016, 10:30 PM   #32
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Yeah, if you can find the the exact kind of boat you're looking for and it happens to be owned by the handful of other people out there who pull their boat out every year just so they can have their prop cleaned.
I thought everybody pulled their boat annually to check out things. Silly me. Good for you Mark.
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Old 06-08-2016, 10:01 AM   #33
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Here are some shots of my boat which was hauled out for survey before I sold it. Click image for larger version

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Size:  6.5 KBThe prop speed is over two years old and had been sitting for six months. The secret is in the application if you can spray it you might be able to get 3 years. Otherwise 2 is pretty much the norm for our typical use. In the first set of photos the props were sprayed by the prop shop and then installed. The struts, shafts,tabs and rudders were hand painted by the yard and you can see the difference. Note less is more as the sprayed coating on the prop blades is thin enough to see the name etched on the blades. The photos below are two years old and were also painted by hand at a different yard.
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Been using the product since 2003 and I think the fuel savings alone have been worth the expense. Since you are probably going to engage a prop shop to address your pitting and cavitation problems you might want to have them spray coat the wheels.


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Old 06-08-2016, 10:11 AM   #34
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Your boat is built like a tank, and I mean that in a complimentary way.
A fact he reminds us of almost daily
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Old 06-08-2016, 11:16 AM   #35
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I thought everybody pulled their boat annually to check out things. Silly me. Good for you Mark.
Seriously, why would you pull your boat out yearly just to "check things out" if your bottom paint is holding up fine?

Just put a mask on and have a look once in a while. Or pay a diver.

Save the needless haul out cost for fuel or for when a haul out is really needed.
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