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Thread: What to use to clean the prop?? Reply to Thread
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  Topic Review (Newest First)
05-28-2007 05:26 PM
Boasun Use a pressure washer for most of that stuff. Just water alone will do wonders when applied under high pressure. And is less injurious for your equipment.
05-28-2007 03:56 PM
USCGRET1990 Propspeed results...
PassageMaker Chat Deck: Prop Anti-fouling Paint
05-28-2007 03:53 PM
USCGRET1990 Something to consider... - the serious cruising sailor's website
05-28-2007 11:17 AM
Goodnewsboy Hi Giu:

Media blasting (sometimes called sandblasting) will do a nice job of cleaning your prop.

If you go with media blasting, choose the media with care. I would recommend glass beads or shells in order to avoid metal loss.

You should also consider the effect of driving abrasive into the bearing areas upon which the blades pivot. Be sure to subject them to as good a "post blast" cleaning as you can.
05-26-2007 06:37 PM
Originally Posted by Giulietta
Charlie, my friend, What's a hooka rig??
Is it one of those things with 2 or 3 hoses and mouth pieces that push air down?
A hookah consists of an air compressor (gas or electric) which provides air to the diver via a long hose attached to the 2nd stage regulator.

05-26-2007 03:20 PM
captron400 The absolute best way to clean a prop (or virtually any other piece of metal) is media blasting. It's quick and easy with unbelievable results. Find a friend with a blast cabinet or take it to a shop that has one. Don't go too agressive with what you're blasting with - I've even used walnut shells when the suface is not too bad. It will come out of the cabinet looking brand new. If it's a feathering or self-pitching version then power wash it afterwards - and that might not be a bad idea even if it's not. I do this every winter to my C400's Autoprop.


C400 #74 "Good Vibrations"
C250 WK #688 "Running Free"
05-26-2007 12:59 PM
Goodnewsboy Hi again Giu:

Before you start on the prop, bolt it to a piece of timber that you can secure to a workbench. You don't want a nice, expensive prop to take flight. (This assumes that you will remove the prop from the boat.)

A bolt smaller than the bore will work well if you put a large washer (bigger than the bore) on top of the prop.

I'll watch for the pictures.
05-26-2007 12:48 PM
Giulietta Charlie, my friend, What's a hooka rig??
Is it one of those things with 2 or 3 hoses and mouth pieces that push air down?
05-26-2007 12:43 PM
Originally Posted by Giulietta
Fred can't hold his breath that long!!!! but I like the idea....

Then maybe you should get him a hooka rig.
05-26-2007 10:57 AM
Originally Posted by Goodnewsboy
Hi Giu:

I was only saying that the rapid loss of zinc as well as the appearance of your prop in the photo suggested electrolysis. You should check out the variety of metals that are electrically connected together in the subnerged portion of your drive train.

As for cleaning your prop, etc., try 3M scotch brite pads. There is also a rotary version of scotch-brite that can be chucked into an electric drill. These are often used by automobile body shops to remove rust from steel. See:
3M Company Scotch-Brite Paint/Rust Remover - 9410

Buy Paint and Rust Stripper Kit 4 Inches 9099 by 3M at

I think they should be OK for propeller bronze as long as you don't get too enthusiastic.

If it were me, I would first soak the prop in a solvent for a while to try and soften the deposits. Paint thinner (mineral spirits) might be a good first try.
Goodnewsboy, thank you. That is what I wanted, I will do it like that.

The zinc wear is very normal, as I sent the photos to Gori, and the saildrive is not corroded or damaged at all. It was marine growth, and bad one...

All taken care, as soon as I get home, I'll post a photo of my shinny prop, after I clean it.

Sailormitch, Fred can't hold his breath that long!!!! but I like the idea....
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