Surefooted sailors are happy. Even without faces detail showing mainsheet tackle and hardware intricate work is no so hard with a sharp knife SeaCork Provides Sure Footing on Sport Sailboat Boat/Yacht July 7, 2015 Black Caulk, Bordered, Exterior, Grooved Permalink This client was looking for better grip in some particular areas on deck without resorting to scruffy non-skid paint that can be both unattractive, and abrasive to knees and clothing. SeaCork provides all the grip they need, and looks great.