Amazing Roll-Off works wonders on mildew! Wash mildew off your boat in minutes, even if it has been there for weeks. Keep mildew at bay with regular washings with Roll-Off! Amazing Roll-Off is a concentrated, water-activated cleaner. Simply wet the area to be cleaned with water, spray on Amazing Roll-Off and rinse the dirt and grime away. Roll-Off will amaze you with its cleaning power. Dirt that other cleaners can’t touch simply rolls off with little or no scrubbing. Amazing Roll-Off is bio-degradable, non-corrosive, rust inhibiting and ecologically safe. Amazing Roll-Off leaves a gleaming and rust inhibiting wax-like finish that resists dirt. Surfaces remain clean longer. Future cleaning is easier, takes less time and can be done less often.