from the FAQ's section of the Meguiar's website regarding Marine and RV care:
Q: HOW SHOULD I CARE FOR THE FINISH OF MY BRAND NEW BOAT OR RV? A: "An ounce of prevention is worth a pound of cure" is especially true for boats and RV's. Washing and waxing a new boat or RV is easy and will make ongoing maintenance much easier.
Wash your boat or RV frequently with a wash specially formulated for gel coat. Regular household detergents, if used, will strip your wax protection and accelerate oxidation.
Wax your new boat or RV immediately with a high quality wax formulated for gel coat surfaces, then at the beginning and ending of each season to keep it looking sharp and its finish protected.
Q: HOW DO I RESTORE AN OXIDIZED FINISH ON MY BOAT OR RV? A: Oxidation occurs when environmental exposure dries out the gel coat, causing it to lose both color and gloss. It is necessary to remove all the dead gel coat before lasting high gloss can be restored.
Lightly oxidized gel coat can be easily restored with a liquid, non-abrasive cleaner/wax such as Meguiar's No. 50 Cleaner Wax. Unlike most cleaners, this one-step product cleans chemically without using harsh abrasives. This is the only product properly maintained gel coat will ever need.
Moderate to heavily oxidized gel coat will require more intense measures. Depending on the severity, the object to remove the layer of oxidized gel coat will require a cleaner or compound. After the oxidation has been removed, follow with a high gloss polish to restore gloss, and then a long-lasting wax to protect the newly restored finish. A simple, 3-step system can be found in Meguiar's Fiberglass Restoration System, which includes a cleaner, polish and wax.
Q: HOW SHOULD I CLEAN VINYL ON MY BOAT? A: Vinyl surfaces such as seats, pads, sidewalls, fenders, rub rails, etc. are constantly exposed to the elements. If they are not properly cared for, they can deteriorate and become unattractive. It's important to clean your vinyl often to remove ingrained dirt and grime with a product such as Meguiar's No. 57 Vinyl/Rubber Cleaner & Protectant. Heavily soiled surfaces might require a stronger cleaner and scrubbing with a nylon brush. Vinyl also needs protection from the elements such as the sun's ultraviolet rays. It's important to frequently apply a vinyl protectant to keep the surface from fading and cracking.
Q: WHAT IS THE DIFFERENCE BETWEEN AUTOMOTIVE WAXES AND MARINE/RV WAXES? A: Meguiar's Marine/RV products are specially formulated for gel coat and linear polyurethane (LP) surfaces, which are chemically different than automotive paints. Modern gel coats and LP coatings are harder and more water resistant than automotive paints. Their unique chemical compositions demand special ingredients that are specific to these marine uses and formulated for use in marine environments. Automotive products will not achieve the same high quality results on boats or RVs.
Q: HOW DO I CLEAN CLEAR PLASTIC SURFACES INCLUDING EISENGLASS AND PLEXIGLAS? A: Clear plastic surfaces such as windshields, bridge enclosures, dodgers, cockpit curtains and portholes are easily scratched and dulled, obscuring visibility. This problem is aggravated when the wrong cleaning products are used. To restore clarity to dull and scratched surfaces, it is essential to use a cleaner specially made for clear plastic surfaces. Meguiar's has developed very effective plastic cleaners (Meguiar's Clear Plastic Cleaner and Meguiar's PLASTX™) that remove scratches without causing scratching themselves. They are even safe on delicate LEXAN® polycarbonates as well as PLEXIGLAS® acrylic surfaces. To help protect against rescratching, apply a safe polish like Meguiar's Clear Plastic Polish frequently. This will help to keep the surface protected against the elements.
Q: HOW DO I MAINTAIN THE APPEARANCE OF THE BRIGHTWORK ON MY BOAT? A: The metal surfaces on your boat are extremely important in your maintenance program. Rusting and corrosion not only destroy the appearance and performance of metal parts, but also stain surrounding surfaces. To clean all metals including chrome, stainless steel, aluminum, brass, copper and magnesium, Meguiar's makes an All Metal Polish that cleans and brightens the surface and applies a light layer of protection from corrosion. Special care should be given to aluminum, brass, copper and magnesium because they oxidize quickly if left unprotected. They can also be scratched easily if the wrong cleaner is used. These soft metals are best kept in "like new" condition if protection is applied. Meguiar's newly introduced, breakthrough formula, Metal Guard, will apply a microscopic, long-lasting protective barrier to these metals that will prevent both marring and fading. This product should be applied at the beginning and end of each season.
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