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-   -   What to use to clean the prop?? (http://www.sailnet.com/forums/gear-maintenance/32885-what-use-clean-prop.html)

Giulietta 05-25-2007 12:57 AM

What to use to clean the prop??
 
My prop looks like ****.

The Saildrive zinc is gone, and the prop zing is half there. New ones being installed. No problem.

Normally I have Yanmar and the yard do the service, but this time, I want to get my hands dirty and take it home and clean the prop myself.

What can I use to clean the prop? Copper brush and sandpaper? Can I use a rotary stell wheel?? Like the ones to polish Stainless or will it cause some weird electrical effect and corrode the porp?

I want to do it myself.

Here is my **** looking prop.

http://i125.photobucket.com/albums/p...c/DSC00333.jpg

http://i125.photobucket.com/albums/p...c/DSC00331.jpg

sailingdog 05-25-2007 02:52 AM

I'd recommend using an oxy-acetylene torch to clean the growth off your prop. It will certainly get rid of all the biologicals from the prop... ;)

bestfriend 05-25-2007 03:15 AM

G - First I would say just to call the regular guys and ask them what they use, they should be willing to share. What is your prop made of? Looks like you have a soft metal, brass, bronze(my guess), nickel? I am not an expert about props. But i do know that you want something that is slightly abrasive, but not too much harder than the metal you are cleaning. You wouldn't want to use a steal grinding wheel on brass, it will just eat away the metal. Also, be careful with heat, as you can weaken the metal. I have heard of using a BBQ/Grill brick. It is made of pumice stone and is abrasive, but gentle enough on soft metal. I would scrape first with a paint scraper, then use the BBQ brick, then polish with a copper wire pad. Anyway, someone here will have the right answer(fstbttms?). For your use, smoooooooooth is the best.

Fstbttms 05-25-2007 03:46 AM

Quote:

Originally Posted by bestfriend
Anyway, someone here will have the right answer(fstbttms?).

A wire wheel on a drill will do the trick. Then a buffer wheel if you wanna make it shine. It'll look nice underwater for about a month. :p

CalypsoP35 05-25-2007 07:57 AM

First I scrape off the large growth with a scraper being careful not to dig into the prop. Then, I use emery cloth, which is basically sandpaper but instead of the sand being on paper it is on cloth. I start with 150 grit and then move up to 220 grit. I have a bronze prop and it brings back the shine. I then spray multiple layers of clear antifouling paint on it.

My boat comes out every winter and although its only in the water for a six month season, I still get some barnicle growth every year.:(

sailingdog 05-25-2007 08:03 AM

Quote:

Originally Posted by bestfriend
G - First I would say just to call the regular guys and ask them what they use, they should be willing to share. What is your prop made of? Looks like you have a soft metal, brass, bronze(my guess), nickel? I am not an expert about props. But i do know that you want something that is slightly abrasive, but not too much harder than the metal you are cleaning. You wouldn't want to use a steal grinding wheel on brass, it will just eat away the metal. Also, be careful with heat, as you can weaken the metal. I have heard of using a BBQ/Grill brick. It is made of pumice stone and is abrasive, but gentle enough on soft metal. I would scrape first with a paint scraper, then use the BBQ brick, then polish with a copper wire pad. Anyway, someone here will have the right answer(fstbttms?). For your use, smoooooooooth is the best.

The bronze they use for props is not a particularly soft metal. The suggestion of the oxy-acetylene torch was a joke. :rolleyes:

ollie820 05-25-2007 08:25 AM

Use a brass brush in the drill if you are worried about rust from a steel brush.

soul searcher 05-25-2007 08:54 AM

Just go get a gallon of prop wash ;)

Its the oldest trick in the boat yard:)

SimonV 05-25-2007 10:55 AM

1. Get some stainless steel wool
2. Hold in left or right hand.
3. push hard against the prop.
4. Have someone start engine.

Fstbttms 05-25-2007 11:04 AM

Quote:

Originally Posted by CalypsoP35
I then spray multiple layers of clear antifouling paint on it.

"Clear anti fouling paint"? That's a new one on me.


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