When selecting urban outdoor leisure chairs, moisture resistance and antibacterial properties become critical factors for longevity and public health. Among common materials, aluminum stands out for its complete impermeability to water and natural resistance to microbial growth, though it requires protective coating to prevent corrosion. Synthetic rattan (PE rattan) follows closely, featuring non-porous woven surfaces that shed water efficiently and discourage bacterial colonization.
Plastic polymers, particularly HDPE and polypropylene, offer excellent moisture resistance with easy-clean surfaces that inhibit bacterial accumulation. Thermally modified wood undergoes chemical changes that enhance its water repellency and natural antimicrobial properties compared to untreated wood. Powder-coated steel provides a moisture-blocking barrier when the coating remains intact.
For optimal performance, materials should feature smooth, non-porous surfaces with proper water drainage designs. Regular cleaning remains essential even with resistant materials, as accumulated organic debris can compromise any material's antibacterial properties. Urban planners should prioritize materials that combine structural drainage features with inherently non-porous surfaces for lasting performance in humid environments.