Marine 31 Gel Coat Heavy-Cut Cleaner Wax - Marine & Boat Voted best boat cleaner wax! Marine 31 Gel Coat Heavy-Cut Cleaner Wax is the perfect one-step solution for getting rid of moderate to heavy oxidation and staining on gel coat - standard and painted. Formulated using advanced micro-abrasives, proprietary cleaning agents and nourishing oils, Marine 31 Gel Coat Heavy-Cut Cleaner Wax maximizes color, gloss and surface smoothness while leaving a durable layer of high-gloss wax protection. Marine 31 Heavy-Cut Cleaner Wax is exceptionally easy to apply and buff off and its unique formula does not dust or cake up. Available in 16 Oz bottles or 32 Oz. bottles.