Marine 31 Gel Coat Final Step Polish Removes light oxidation and yellowing while creating a mirror-finish on your boat Advanced diminishing abrasives refine the gel coat after using a more aggressive polish or compound while nourishing oils penetrate deep into the surface, maximizing gloss, depth and clarity. Marine 31 Gel Coat Final Step Polish is the ideal polish to use on boats that are well maintained and simply require a light polishing before boating season begins. Marine 31 Gel Coat Final Step Polish is harbor safe and eco-friendly. 16 oz. Made in USA