What are the effects of algae growth on stainless steel outdoor bench surfaces?

Algae growth on stainless steel outdoor bench surfaces can lead to several negative effects, including aesthetic and structural damage. Over time, algae colonies create green or black stains, diminishing the bench's visual appeal. More critically, the moisture retained by algae accelerates corrosion, especially in humid or coastal environments. This can weaken the stainless steel, leading to pitting or rust spots if left untreated.

To prevent algae buildup, regular cleaning with mild soap and water is recommended. For stubborn growth, a mixture of vinegar or specialized outdoor cleaners can be used. Applying protective coatings or choosing algae-resistant stainless steel grades (e.g., 316 marine-grade) also helps. Addressing algae promptly ensures longevity and maintains the bench's functionality and appearance.

Pro tip: Place benches in sunny, well-ventilated areas to reduce algae-friendly dampness.