Wrought iron and steel Clean with warm, soapy water. To maintain the gloss on nontextured surfaces, apply automotive wax. On textured finishes, periodically apply mineral or baby oil. If rust develops, clean area by sanding lightly, then wipe thoroughly and apply touchup paint, usually provided by the manufacturer. Hardwoods Clean with mild detergent and water.
Some manufacturers recommend an occasional application of oil.
Teak and jarrah can stay outdoors year-round. Pine, oak and cedar should be stored for the winter. Painted woods will require painting every year or so. Umbrellas Wash covers with mild soap and water, using a long-handled brush. Spray silicone on the joints of wire frames.