Product Details Woody Wax Fiberglass and Non-Skid Deck Wax protects boat decks and fiberglass from the sun, oxidation, water spots, and pollution without the use of harsh chemicals or abrasive cleaners. Time saving Woody Wax, when applied to your decks and flat glass with a soft deck brush, leaves a non-slick wax finish that will keep everything from sticking: dirt, soot, bird droppings, and fish blood will rinse right off.