Quaternary amines provide long-lasting protection, even outdoors.
Most boat owners regard their boat as a living, breathing thing, but when real living thingsespecially the microscopic varietymove aboard and start occupying large swaths of damp real estate, its time to draw the line. Weve done a series of reports on mildew in past articles, but those black spots on the deck, lines, and canvas probably arent mildew. Mildew and mold require darkness, and even the shaded areas on deck are too well lit. Those spots are more likely black algae and lichens, the latter a symbiotic combination of algae and fungus.