Rust free anchor chains?
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Mark Prouty
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- Night Sailor
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Maybe
By rust I assume you mean oxidation of the metal. The only thing I know of now is 316 stainless steel chain, which in pure fresh water shows no rust. However, add salt, fertilizers, and naturally occuring chemicals to the water along with possilbe galvanic corrosion and even 316 stainless will corrode at normal temperatures.
There are metal alloys like phosphor bronzes and titaniums and tungstens and treated aluminums which would not rust easily but they do not have the characteristics needed to make them strong, malleable and inexpensive enough to be used as anchor chain. As far as I know, 316 stainless is the best available in anchors or chains. If something else is available, I hope to hear about it before my next anchor or chain purchase.
There are metal alloys like phosphor bronzes and titaniums and tungstens and treated aluminums which would not rust easily but they do not have the characteristics needed to make them strong, malleable and inexpensive enough to be used as anchor chain. As far as I know, 316 stainless is the best available in anchors or chains. If something else is available, I hope to hear about it before my next anchor or chain purchase.
- MAC26X
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A good way to control rust is to use a Permatex product called Rust Treatment (used to be called Extend). It works best on something that has rust on it. Just brush/wipe off any loose rust and then spray or wipe this product on. It will dry to a black oxidized finish. Then you can leave it that way or paint it. No more rust. Available in many automotive departments.
http://www.permatex.com/products/automo ... atment.htm
http://www.permatex.com/products/automo ... atment.htm
- kmclemore
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I agree that Extend is an excellent product to kill rust, but you can't leave the part untreated afterwards - if you do the rust will quickly return - trust me on this one.MAC26X wrote:A good way to control rust is to use a Permatex product called Rust Treatment (used to be called Extend). It works best on something that has rust on it. Just brush/wipe off any loose rust and then spray or wipe this product on. It will dry to a black oxidized finish. Then you can leave it that way or paint it. No more rust. Available in many automotive departments.
(shortened link)
I would probably just use Hammerite... this paint will greatly extend the lifetime before re-rusting. Besides, Hammerite comes in nifty colors!
Use two coats of Hammerite, and be sure to apply them both within 4 hours if brushing, or 1 hour if you're spraying, to ensure maximum protection and adhesion.
- Night Sailor
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coated chain
I've seen vinyl and nylon coated chain that looked pretty when new, but under frequent anchoring conditions in salt water began rusting where the links wore through the coating under tension.
- mtc
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SS looks cool, too. As tight as I am, my gal chain was fine - until I found 30' of 316 SS 1/4 chain for a fraction of the cost of my gal chain.
Won the lowest bid - It's a crazy world.
It too is showing some signs of rust. The Gulf's water is relentless.
Still looks cool, though. Feel's great in your hands, and when I'm anchored on the island with the hook on the beach with that glistening SS chain, everyone who walks by makes a point to look at it.
Probably think I'm some kind of a freak having so much SS chain! Maybe it's the odd ROCNA.
Michael
Won the lowest bid - It's a crazy world.
It too is showing some signs of rust. The Gulf's water is relentless.
Still looks cool, though. Feel's great in your hands, and when I'm anchored on the island with the hook on the beach with that glistening SS chain, everyone who walks by makes a point to look at it.
Probably think I'm some kind of a freak having so much SS chain! Maybe it's the odd ROCNA.
Michael
