What are the best wood treatments for chairs in areas with frequent acid fog?

Chairs exposed to frequent acid fog require durable wood treatments to prevent damage and maintain longevity. The best options include oil-based sealants like teak oil, which penetrates deeply to protect against moisture and acidity. Polyurethane finishes provide a strong, waterproof barrier, while epoxy resins offer exceptional resistance to chemical corrosion. For eco-friendly solutions, natural waxes like beeswax can be combined with linseed oil for moderate protection. Regular maintenance, including cleaning and reapplication, is essential to ensure lasting performance in harsh environments. Choose treatments based on wood type and exposure severity for optimal results.