How does galvanic corrosion affect metal outdoor chairs with mixed-material components?

Galvanic corrosion is a common issue for metal outdoor chairs that incorporate mixed-material components, such as aluminum frames with stainless steel screws or copper accents. This electrochemical reaction occurs when dissimilar metals are exposed to moisture, creating a corrosive environment where one metal acts as an anode and deteriorates faster than the other.

In outdoor settings, rain, humidity, and condensation accelerate this process, leading to rust, weakened structural integrity, and aesthetic damage. For example, aluminum paired with steel in coastal areas can corrode rapidly due to saltwater exposure.

To prevent galvanic corrosion, consider using compatible metals, applying protective coatings like powder coating or anodizing, and ensuring proper drainage to avoid water accumulation. Regular maintenance, including cleaning and inspecting joints, also helps prolong the lifespan of mixed-material outdoor furniture.

By understanding and mitigating galvanic corrosion, you can keep your metal outdoor chairs durable and visually appealing for years.