White oxidation on aluminum outdoor furniture is a common issue caused by exposure to the elements. This chalky, white substance is aluminum oxide, which forms when the metal reacts with oxygen. Fortunately, it's relatively easy to remove and prevent. Here is a simple, step-by-step method to restore your furniture's luster.
You will need: mild dish soap, white vinegar or lemon juice, baking soda, a soft-bristled brush (like a nylon scrub brush), a sponge, a hose or bucket of water, and optionally, a commercial aluminum cleaner or metal polish. Always wear gloves to protect your hands.
First, create a cleaning solution. For a natural approach, mix equal parts white vinegar and water in a spray bottle. For tougher oxidation, make a paste from baking soda and water. Alternatively, you can use a mild soapy water solution.
Next, thoroughly rinse the furniture with a garden hose to remove loose dirt and debris. Apply your chosen cleaning solution to the affected areas. If using the vinegar spray, let it sit for 5-10 minutes to dissolve the oxidation. If using the baking soda paste, apply it directly and let it sit.
Then, gently scrub the surface with your soft-bristled brush. Use circular motions and focus on the areas with the most oxidation. Avoid using steel wool or abrasive pads, as they can scratch the aluminum.
After scrubbing, rinse the furniture completely with clean water, ensuring all cleaning residue is washed away. Use a clean, soft cloth or a squeegee to dry the furniture thoroughly. This step is crucial to prevent new water spots and slow down future oxidation.
For added protection and a brilliant shine, you can apply a commercial aluminum protectant or a thin layer of car wax after the surface is completely dry. This will create a barrier against moisture.
To prevent white oxidation from returning, regularly clean your furniture with soapy water, dry it after rain, and store it under a cover or in a sheltered area during harsh weather or the off-season. With this simple maintenance, your aluminum furniture will stay looking new for years.