Prism Polish is excellent to use for removing oxidation & stains from gel-coat. Prism Polish may be used by hand (we recommend paper towels), or by machine. Use Prism to clean non-skid decking too. After removing oxidation, it is very important to protect gel-coat from UV rays, air & water borne contaminants. This added protection makes it so you donÃ¢â‚¬â„¢t have to do the Prism Polish step every time, saving both time & money. Mirage Sealant & Protectant is a proven leader in providing shine retention and protecton for gel-coat and painted hulls alike. A little goes a long way. For a shine that lasts!Guaranteed Satisfaction or Your Money Back! Lasts longer than wax! Protects against water damage Seals surface with a clear protective coat, resists stains Safe on gel coats and fiberglass.