Chain - cold galvanising

[guydickinson]

Wonder if anyone could kindly advise on what product to use to cold galvaise a mooring bridle? More specifically, I have the upper end of the mooring bridle chain on deck and round the samson post. This end has already rusted - after 1 year! Rust on deck makes a hell of a mess as we all know I'm sure. Only the top metre or two has rusted (just the bit you don't want to rust). Rather than another bridle costing quite a lot, it makes sense, I thought, to try and cold galvanise that end. If no good - new chain I guess! Thanks.

 

[Kelpie]

By 'cold galvanising' do you mean using a zinc based paint, e.g. Galvafroid?
I would have thought that the coating would wear away in next to no time.
Perhaps you could bolt an anode on to the chain instead?

 

[vyv_cox]

I painted a Delta anchor with a zinc-based paint, after priming it. Can't tell you the product names, it was in France a few years ago, but it lasted quite well.

 

[Poignard]

A friend of mine said he had good results with Zingard from MG Duff . He used it on the anchor but I don't know if he used it on chain.

http://www.mgduff.co.uk/zingard.html

 

[wotayottie]

Wonder if anyone could kindly advise on what product to use to cold galvaise a mooring bridle? More specifically, I have the upper end of the mooring bridle chain on deck and round the samson post. This end has already rusted - after 1 year! Rust on deck makes a hell of a mess as we all know I'm sure. Only the top metre or two has rusted (just the bit you don't want to rust). Rather than another bridle costing quite a lot, it makes sense, I thought, to try and cold galvanise that end. If no good - new chain I guess! Thanks.

There is no such thing as cold galvanising thout the paint makers will use it as a bit of a con. Galvanising requires molten zinc which forms a compound on the surface of the steel sort of like, but not the same, as an amalgam. The paint we used ( I used to run a business with a hot dip galv plant) when we had galv failures on site was "Galvafroid" but thb its soft like all paints and wont last well in the use you describe.

Best tactic is to use rope for the bit that comes on board. Helps with snatch anyway.

 

[guydickinson]

Thanks v much. Well I'm sure the bit of the chain with load on it (ie coming up to the samson post) will wear any such paint off but I was hoping the bit wrapped round the smason post would stay reasonably rust free??? Round our way we're told the chain should come onto the deck as there have been losses with just rope unfortunately.

 

[vyv_cox]

Round our way we're told the chain should come onto the deck as there have been losses with just rope unfortunately.

When we had our mooring on the Menai Strait, very exposed on occasion, our moorings contractor insisted on 1/2 inch chain for pickup, between buoy and boat, and would not allow anything else. One day I borrowed his mooring and found his pickup was rope! I suppose the difference is that his boat was taken out on a daily basis, when chafe would have been identified before it could become a problem.