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Old 04-10-2019, 10:41 AM   #1
sicric
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Is there a way to retreat a stainless shaft?

I cleaned off the rust on an old JBL shaft with a wire wheel on a bench grinder. Since then, I've been reading that you shouldn't abrade the SS surface or clean with harsh chemicals. Needless to say after the 1st time taking it in the water it was rusted within hours.

I was thinking of putting a sprayed cold-galvanized coating over it after "cleaning" again, but am worried about the coating itself being in contact with future meals. Any ideas on how to save money and not buy a new shaft?



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Old 04-10-2019, 10:57 AM   #2
Marco
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Re: Is there a way to retreat a stainless shaft?

I won't bother. But if you NEED the shaft to look nice, just coat it with some cooking oil after each dive. It should do the trick.
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Old 04-10-2019, 12:47 PM   #3
sicric
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Re: Is there a way to retreat a stainless shaft?

Thanks
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Old 04-11-2019, 01:03 PM   #4
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Re: Is there a way to retreat a stainless shaft?

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Originally Posted by sicric View Post
I cleaned off the rust on an old JBL shaft with a wire wheel on a bench grinder. Since then, I've been reading that you shouldn't abrade the SS surface or clean with harsh chemicals. Needless to say after the 1st time taking it in the water it was rusted within hours.

I was thinking of putting a sprayed cold-galvanized coating over it after "cleaning" again, but am worried about the coating itself being in contact with future meals. Any ideas on how to save money and not buy a new shaft?



What is rusting is the imbedded steel from the wire wheel. Light oil and a green scotch bright pad will keep it looking new.
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Old 04-11-2019, 02:48 PM   #5
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Re: Is there a way to retreat a stainless shaft?

Cold galvanizing spray is useless in submerged salt water. Not worth a damn on boat trailers either. Crap product.
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Old 04-11-2019, 05:40 PM   #6
popgun pete
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Re: Is there a way to retreat a stainless shaft?

After washing my dive gear I lean all the spear shafts against a brick wall with the tips pointing up, give them a hose off even if they had been in the gear tub (end for end swap over) and then give them a shot of WD 40 around the top ends. The excess WD40 runs down the shaft driving all water off, the spears dry in the sun and then are put in the shaft store for next time.

Any corrosion is rubbed off using wet and dry paper with light oil as the lubricant and then wiped clean with a cloth rag.
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Old 05-17-2019, 02:55 PM   #7
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Re: Is there a way to retreat a stainless shaft?

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Originally Posted by Marco View Post
I won't bother. But if you NEED the shaft to look nice, just coat it with some cooking oil after each dive. It should do the trick.
x2 or olive oil (same with your dive knives)
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Old 08-04-2019, 05:16 PM   #8
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Re: Is there a way to retreat a stainless shaft?

Oddly enough, zinc coating will destroy a stainless shaft thru corrosion. Zinc 'sacrificial' anodes protect regular steel by developing a voltage such that the zinc corrodes instead of the steel. Stainless steel relies on a hard layer of chrome oxide on the surface to protect it. Zinc anodes will eat that layer and destroy the corrosion resistance.
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Old 08-04-2019, 06:06 PM   #9
SEATUX
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Re: Is there a way to retreat a stainless shaft?

I use a 90 degree die grinder w/scotch pad to get them bright, then hit them on the buffing wheel till they look like chrome. The object is multiple. It is less drag in the water, and on the slider (if you are line shafting), and easier to see if free shafting and you miss, and the smooth surface doesnt lend itself to surface rust, so they stay clean longer, and it is easy to touch them up on the buffer, once you have gotten them clean initially.
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Old 08-05-2019, 07:26 AM   #10
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Re: Is there a way to retreat a stainless shaft?

Waste of time, get a new shaft and lubricate it with fish flesh.

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