With simple, regular maintenance and care, cast aluminum patio furniture will provide years of enjoyment. Occasional cleaning with mild soap and water, followed by rinsing and a thorough drying with a towel is typically all that is required. Do not use any abrasive materials, cleansers or bleach products as these may damage the finish. You should avoid allowing dirt to build up on the metal frames, as this may cause it to become more difficult to remove over time.
If you notice calcium build-up on your cast aluminum furniture, you can try using a solution of 1 part white distilled vinegar and 9 part water to help remove it. Before you apply your solution, you should always test the solution on an inconspicuous area of the frame before applying to ensure it doesn't discolor the finish.
If your cast aluminum furniture has a shiny or glossy, non-textured finish, you may also use a fine automotive wax to maintain it. This will help in reducing the amount of dirt and debris that accumulates on the frame finish.
On furniture textured surfaces or finishes, you can periodically apply mineral oil or baby oil to prevent dirt build-up and restore the luster.
Periodically, you should inspect your cast aluminum furniture for any scratches or chips in the finish. If you should find any areas where the bare metal is exposed, you should contact your furniture manufacturer or retailer for information about how to repair it. Depending on the size of the area, you may be able to use touch-up paint to correct the problem. Touch-up paint in matching frame colors is typically available through your retail dealer or furniture manufacturer.
Additionally, you should prevent water from accumulating in frame by removing the adjuster glides or foot caps from the bottom of the legs. Allowing water to collect inside cast aluminum furniture that is exposed to freezing temperatures can cause damage to to the frame that is typically not covered under a manufaturer's warranty.
To keep your cast aluminum furniture looking its best, you may wish to store or cover your furniture when not in use for an extended period of time.