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Old 21-02-2012, 21:41   #1
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Prop Polishing

My max-prop was in the water in-maintained for 7 years or more. I just had her hauled and the prop shows some corrosion. The leading and trailing edges are solid but there's surface corrosion on the blades and body. How should I go about cleaning it up?

The blades feather and reverse properly and they are very smooth when I hand turn them. I've motored approx 5 hours recently and the prop seems to be in balance. Assuming I work on the blades fairly equally cani expect them to still be well balanced?
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Old 22-02-2012, 03:25   #2
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Re: Prop polishing

Check with PYI - the MaxProp importers. I have had nothing but exceptional customer service from them. They have always been really responsive to my questions.
PYI Inc. Max-Prop PSS Shaft Seal Seaview Radar Mounts R&D
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Old 22-02-2012, 21:18   #3
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Re: Prop Polishing

I ended up using "On & Off" and it worked really well at dissolving the hard growth. The prop was perfectly smooth under all the growth. Tomorrow I'll polish it up and wax it to hopefully keep it a little cleaner. (I also don't expect 12 years before the next haul out!)
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Old 22-02-2012, 22:03   #4
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Re: Prop Polishing

On & Off is strong acid and can attack the metal. Suggest you use a baking soda solution to neutralize it ASAP. Probably still wet inside the hub Hopefully not too much damage done.

Next time scrape or bronze-wire brush by hand.
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Old 22-02-2012, 22:27   #5
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Re: Prop Polishing

I use Scotch Brite, a bit of that buffing paste, maybe some Vim and Brasso and the enthusiasm I had for the end of a different shaft at 15 years of age.



As they say, it's all in the wrist.
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Old 22-02-2012, 23:20   #6
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Re: Prop Polishing

Quote:
Originally Posted by S/V Alchemy View Post
I use Scotch Brite, a bit of that buffing paste, maybe some Vim and Brasso and the enthusiasm I had for the end of a different shaft at 15 years of age.



As they say, it's all in the wrist.
Looks great, but I had many years of hard growth. I did neutralize the on & off plus a very good rinse. The prop will also be re packed in the morning so I'm pretty sure everything is safe.
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