Park chairs, often exposed to the elements, can easily accumulate stubborn shellac stains from spilled drinks or natural wear. To tackle these blemishes, start by gently scraping off excess shellac with a plastic scraper to avoid scratching the surface. Next, apply a mixture of warm water and mild dish soap, scrubbing softly with a soft-bristle brush. For tougher stains, rubbing alcohol or vinegar can break down the shellac without damaging the chair's finish. Rinse thoroughly with clean water and dry with a microfiber cloth to prevent water spots. Regular maintenance, such as wiping down chairs after use, can help prevent future stains and prolong their lifespan. For painted or treated chairs, always test cleaning solutions on a small, hidden area first to ensure compatibility. With these simple steps, your park chairs will stay clean and inviting for everyone to enjoy.