After market coatings vs. Salt water

[Adamantium]

How do coatings hold up against it? I've been following the Dive Knife thread and am wondering why more dive knives don't have coatings. Of course I'd assume that is because salt water, after time, completley removes them.

So, how do the various blade coatings like the baked on epoxy, Park, TiN, Hard Chrome(Is that BF.com favorite coating?

), tuff cloth and bluing(my personal least favorite) hold up on constant exposure to sea water?

Sincerely,
Adam

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Self improvement is a hobby of mine .

 

[doggyknife]

I've only used one coated blade in saltwater, and I do know that marine tuf-cloth does work fairly well. I've always tried to limit my knife exposure time to the saltwater, but knives that I've treated with marine tuf-cloth, never had a corrosion problem with them (of course I didn't do any hour-long submersion tests). The one coated knife I did use (SOG sealpup with a grey teflon coating), also did very well in saltwater, without any additional protection.

 

[Marion David Poff]

The problem with coatings are that rust will creep under the coating from the edge which has to be uncoated at some level.

MDP