How To Clean Black Metal Patio Furniture

Considered the most durable material for outdoor furniture, metal can last a lifetime if you take care of it properly. Most metal outdoor furniture is finished with paint, varnish, or powder coating to prevent rust. And, while aluminum doesn't rust–hence its recommended use in areas near salt water–it can oxidize (which causes pitting and dulls the finish).

Above: Made of rust-resistant galvanized steel, both the Tolix Marais A Chair and Tolix Marais Two-Seater Dining Table were designed by French metalworker Xavier Pauchard and are still manufactured in Autun, France.

Soaps & Cleaners

Metal furniture is best cleaned with a cloth or sponge using water and mild, non-detergent soap and wiped dry. Abrasive scrubbers or cleaners should not be used as they can scratch the finish, potentially exposing the metal to rust-inducing moisture. For ingrained dirt, use window cleaner or a non-abrasive multi-purpose cleaner.

When cleaning keep an eye out for scratches or any signs of rust, especially at furniture joints. Apply touch-up paint to scratches to prevent rust. If rust or mold is present, sand the area lightly using fine-grit sandpaper and apply rust-proof touch-up paint (this may be available from the manufacturer). To remove oxidization from aluminum furniture, use a solution of equal parts of white vinegar and water; avoid alkaline cleaners as they cause oxidation.

Rust vs. Patina