Great question. The short answer is that it depends on the bench, but most reputable commercial street benches use powder-coated legs. Powder coating is an electrostatic process where dry pigment is sprayed onto the metal and then cured under heat. It melts into a hard, fused finish that bonds to steel or aluminum, making it far more resistant to chipping, scratching, and rust than ordinary wet paint.
If the legs are just painted—especially with a single coat of enamel or spray paint—you will typically see chipping within the first season or two, especially around bolt holes, feet, and welded joints where moisture collects. Paint sits on the surface, while powder coating becomes part of the surface.
Here is how to tell the difference. First, look at the texture. Powder coat tends to feel slightly textured or evenly smooth with no brush strokes. If you gently run a fingernail over a hidden area, a powder-coated finish feels hard and slick, like an appliance finish. Second, check the edges and corners. Powder coating wraps evenly around edges because the part is electrostatically charged before curing. Wet paint often thins out on sharp edges, which is exactly where chipping starts. Third, inspect any existing chips. Small flakes lifting away with bare metal underneath are typical of paint failure. Powder coating can chip under heavy impact, but it rarely peels in sheets.
For commercial street benches, specifying powder-coated legs is worth the extra cost. Look for terms like zinc-primed and powder-coated, TGIC polyester powder coat, or AAMA 2604 finish if you want maximum durability. If the listing only says painted steel, assume you will be doing touch-ups.
So, to answer your question directly: if these are commercial-grade street benches, the legs should be powder-coated. If they are budget residential benches, they may be wet-painted and more prone to chipping. Ask the supplier for the coating spec before you buy.