Reddit reviews Rust-Oleum Available 207012 Marine Flat Boat Bottom Antifouling Paint, 1-Quart, Black

Ideal for use on fiberglass, wood or steel surfaces to prevent fouling below the waterlineFormulated to slowly release copper in order to prevent foulingAble to recoat in 4 hours, to launch in 16 hours and covers up to 110 sq ftProtective coating resists buildup of barnacles, algae and other marine growthHard, smooth finish provides a flat sheen over most aged antifouling coatingsFor use in mild to moderate fouling conditionsSuitable for both fresh and saltwaterBest for boats that are regularly hauled and cleanedUse on fiberglass boats and all non-aluminum trailer boatsThis item is not for sale in Catalina Island