Bakster, like GM said, you have to be careful about it. It's the nuclear option if you will. Use pastel powder and lightly brush it on. Decks get worn with constant sea water and traffic, but are pretty tough. The world learned a thing or two from centuries of sailing. If the deck is painted, ie. American ships then the paint will wear off in high traffic areas but the deck apes, or the "Boats" rather, will get them on it to repaint. It takes a lot of time during transient from one duty station to another. The hull is a different matter. You can't get a lot of guys over the rail in boatswains chairs to needle gun and paint underway.
If you use a pastel in a color you trying to achieve it might just work.