Metal urban outdoor furniture is designed to withstand the rigors of public spaces, and its scratch resistance is a critical factor in its longevity. The level of scratch resistance primarily depends on the type of metal and the protective finish applied to it.
The most common metals used are aluminum, steel, and wrought iron. Aluminum, particularly when treated with a hard-anodized finish, offers excellent inherent resistance to scratches and corrosion. Steel furniture is extremely strong but requires a robust protective coating to prevent scratching and subsequent rust. Powder coating is the industry standard for protecting both aluminum and steel. This process involves applying a dry powder electrostatically and then curing it under heat to create a thick, durable, and uniform layer that is highly resistant to scratches, chipping, and fading. The quality and thickness of this powder coat directly determine how well the furniture will fare against abrasion from keys, sand, and general public use.
For the highest level of scratch resistance in heavy-traffic areas, look for furniture labeled with a high rating on the pencil hardness test (e.g., 9H) or a thick powder coat measured in mils. Textured or matte finishes can also help to conceal minor surface scratches better than a high-gloss finish. While no surface is completely impervious to deep, intentional gouges, quality metal outdoor furniture with a proper finish will maintain its appearance and structural integrity for years with minimal visible wear from everyday scratches.