Proper application of Re-Structure Marine Mirasol Sealant Spray provides a glass like hard coating that maintains a protective seal on fiberglass, stainless steel, and polished aluminum. Marine Mirasol Sealant Spray enhances the shine and extends the life of Marine Polish. Marine Mirasol Sealant Spray removes marine scum and salt spray residue and protects your existing waxed or polished boat surfaces. Unlike Carnauba based products, Marine Mirasol Sealant Spray does not yellow over time. For all interiors, the best time to apply Marine Mirasol Sealant Spray is when a boat is new; thereby making sure the showroom fresh look remains that way - regardless of use. For older boats or boats without anti-fouling bottom paint such as fast speedsters, trailer boats of all kinds, bass boats, small to medium sized cruisers, center consoles, RIBs, day boats, skiffs, racing sailboats, dinghies and personal watercraft, an application of Marine Mirasol Sealant Spray to both topsides and the hull - following a wash down after haul out - will seal and protect the entire boat and keep that showroom fresh look. Marine Mirasol Sealant Spray also works its wonders on surfboards and skis. As Marine Mirasol Sealant Spray hardens, it levels the surface with a glass like finish that creates the superior shine.