*JimH* wrote:

WD40 has become a versatile fluid for lubrication, cleaning and water
proofing. This site gives 2000 uses for it. http://www.twbc.org/wd40.htm

How do you use it on the boat?

I don't, it sux & is basically marked-up Stoddard solvent. There are
far better penetrants as well as cleaners, and calling it a lube is
almost a joke.