Is there some sort of spray that one could put on zippers to prevent saltwater corrosion? Thanks FishHawk
Invent one, and you’ll make a fortune.
Plain old rinse them with fresh water.
silicon lubricant will work for a bit, but it still will rinse off.
Yup, just rinse it
Saltwater regimen includes rinsing off stuff with fresh water. You'll still need to use a bit of lube or zipper wax to keep things running smooth, but the fresh [oops corrected - NOT salt] water rinse should prevent corrosion.