Vinyl seat covers are commonly used on outdoor furniture, such as boat seats, for their ability to repel water. Over time, moisture, temperature and other factors expedite the growth of mold and mildew. Mold and mildew can create foul odors and even stain your vinyl seat covers. With the proper care and cleaning products, you can remove the mold and mildew, restoring the look of your vinyl seat covers. Keep the seat covers as dry as possible to prevent future mold and mildew growth.
Remove the seat covers from the seats.
Fill a bucket or spray bottle with either 1 part ammonia to 4 parts water, or 1 teaspoon ammonia, 1/4 cup hydrogen peroxide and 3/4 cup water.
Spray the vinyl seat covers with a garden hose to dampen them.
Dip a soft scrub brush into the solution, or spray the seat covers with the spray bottle and scrub the vinyl thoroughly. Use small, circular motions to remove the mold and mildew.
Rinse the seat covers thoroughly on both sides with a garden hose.
Hang up the seat covers or lay them out in a well-ventilated area--preferably outdoors away from direct sunlight--to air dry them. This can take a few hours.
Apply a vinyl protectant, if necessary. Follow the manufacturer's instructions.