I have the same issue my tractor shed is 200 ft from the ocean and everything rusts here. I am not sure what to do I am hoping fluid film will help on the metal as far as the grease I am not sure I have started using lucas xtra which is polyurea based but if there is something better for saltwater I would gladly switch. everything here is coated in salt. we get very strong winds that cake salt on everything. The last big storms we had the spruce needles were embedded in the salt stuck on the vinyl siding of the house
Fluid film should offer some protection for steel items used/stored near salt water.
For many years I have used LPS-3,...... a product that I know works!.
LPS-3 has a USA Mil Spec., while Fluid Film does not.
Mil Spec. certified items are those which the USA military has tested and approved for use (harsh outdoor environment).
LPS-3 is advertised as providing protection against harsh/corrosive environments for up to two years.
It does!
It works!
Dries to a brown, waxy soft surface, similar to military "Cosmoline"
For 15 years I had a waterfront place in Shelburne, and for the past 80+ years I have lived very near the ocean on Cape Cod.
I do totally understand that the Fundy shore is worse!
Anything steel that I leave outside gets treated with LPS-3.
It can be bought in aerosol cans (quite expensive), but by the gallon is much more cost effective.
I have bought it in both 5 gal. pails, and 15 gallon drums.
It is excellent for rust proofing automobiles (I know, you NS folks use motor oil, but LPS-3 is MUCH better, because it adheres to the steel, and does not wash off easily.
LPS-3 is not often found in hardware stores, (I doubt that either Princess Auto or Home Hardware sells it) but may be found in commercial marine supply stores, and some auto supply stores.
Though it is sold to everyday consumers, and has been around for many years, it is not widely known, even in the USA.
Amazon.ca has it listed.
Nearest supplier to you that I could find, is Source Atlantic in Truro 902-897-0787
Source Atlantic is also in Halifax, and Dartmouth, with several more in NB.
For economy, buy the gallon size (probably marked 3.78L in CA.)
The airline where I worked for 33 years, coated the cargo compartments of every new airplane delivered with LPS-3, to protect the aluminum from animal urine corrosion.