Weatherproof coating for Stainless

[Jimmy Phillips]

the OP was specifically mentioning using it in a marine environment

I know.....and of course your quote says "In many..."....doesn't say all! I am just giving you my 43 years of living on the Chesapeake Bay and currently owning a 38' Bertram, 23' Cobia WA, and 18' Boston Whaler experience....

Of course you can always fly down here to Poquoson, VA. and I will take you out on one of the boats and you are welcome to check the stainless bolts/screws/nuts that are affected by salt water everyday as they sit at my pier.

But maybe I am wrong.............

We did re-fasten our last Sport Fisherman, a 36' Tiffany, with over 6000 silicon bronze screws, and then we used West System and bi-axial cloth to fiberglass over the mahogany hall. Now talk about corroded screws....of course they were not stainless........

Now, I really don't want to get into a Google search quote flame war........

Just letting you know what one old fisherman does and has experienced............take it or leave it.......I just know I won't be spraying any hairspray on my boat, unless it goes in the wife's hair of course!

Jimmy

[Joe De Medeiros]

I know.....and of course your quote says "In many..."....doesn't say all! I am just giving you my 43 years of living on the Chesapeake Bay and currently owning a 38' Bertram, 23' Cobia WA, and 18' Boston Whaler experience....

Of course you can always fly down here to Poquoson, VA. and I will take you out on one of the boats and you are welcome to check the stainless bolts/screws/nuts that are affected by salt water everyday as they sit at my pier.

But maybe I am wrong.............

We did re-fasten our last Sport Fisherman, a 36' Tiffany, with over 6000 silicon bronze screws, and then we used West System and bi-axial cloth to fiberglass over the mahogany hall. Now talk about corroded screws....of course they were not stainless........

Now, I really don't want to get into a Google search quote flame war........

Just letting you know what one old fisherman does and has experienced............take it or leave it.......I just know I won't be spraying any hairspray on my boat, unless it goes in the wife's hair of course!

Jimmy

Jimmy, I don't deny what you say, surface corrosion on stainless (300 series) in most case has to do with surface contamination and is not true corrosion. Stainless sheets that are generally used for signage are usually 304 and have a number 4 finish on them, and are more susceptible to tea staining, and usually have not been cleaned properly to remove any surface contamination, I come from a industrial welding sheet metal background (30 years) but I don't live near salt water so I concede to your experience. My intention was not to start a Google quote flame war, but to just add additional info. I agree that hair spray would be the last thing I would use in a commercial installation.

[Jimmy Phillips]

Jimmy, I don't deny what you say, surface corrosion on stainless (300 series) in most case has to do with surface contamination and is not true corrosion. Stainless sheets that are generally used for signage are usually 304 and have a number 4 finish on them, and are more susceptible to tea staining, and usually have not been cleaned properly to remove any surface contamination, I come from a industrial welding sheet metal background (30 years) but I don't live near salt water so I concede to your experience. My intention was not to start a Google quote flame war, but to just add additional info. I agree that hair spray would be the last thing I would use in a commercial installation.

Sorry if I misunderstood your message. No offense meant.

Now I understand that 316 stainless has molybdenum added to it for increased corrosion resistance. And we do try and use 316 everywhere, but usually end up with 304 above the waterline (cheaper). Interesting part is the head is the last thing to "corrode" on the screws going into the hull. The threads, through lack of oxygen, start some type of chemical process with the non-cured resin and other molecules (too lazy at this point to Google it, so I will leave that to the physics guys) which breaks down the passive chromium oxide protection (I admit that I Googled that! ) and then the fun happens.

What I really love is all the use of stainless steel screws/bolts in aluminum on boats! And how did that stainless screw get welded to the aluminum housing... Can we all say dissimilar metals together.....now that is fun! Why boat manf. can't take the extra 5 seconds to at least try and coat the stainless before screwing into aluminum is beyond me! Anyone ever heard of 3M 5200 marine adhesive? That stuff is awesome....nice dab on a stainless screw before going into an aluminum hole....does the trick!

l8r guys,

Jimmy

[Bill Cunningham]

Nufinish car polish.. wipe it on, let it dry, buff it off.. It will keep a car finish protected for a year through salt, carwashes, dirt, etc.. Been using it for years, and it seems to do the trick..

[Kathy Madan]

Newer hairsprays have different compositions, but using the brand Aquanet hairspray from years ago makes a great fixative. FYI, OB-Gyn offices used it for years to set the slides for pap smears. Sorry if that's too much information.

[Dan Hintz]

fyi, ob-gyn offices used it for years to set the slides for pap smears. Sorry if that's too much information.

til...... :d