Metal Metal furniture is hardy, durable and long-lasting. However, with improper care it can become susceptible to oxidization and consequently degradation. • Always clean metal furniture with a damp cloth or sponge. For tougher stains and marks, use non-detergent soap but always be sure to wipe down surfaces after you have finished. • Never use abrasive scrubbers as they can scratch the surface and increase the chance of rust and oxidation.