What You Need
Aluminum is everywhere around the home and garage, from patio furniture and window frames to auto parts and siding. It comes in several finishes, including bare (raw), anodized, powder-coated, painted, and ceramic-coated. Most aluminum you'll clean around the house has some coating or finish.
Aluminum is also a relatively soft metal, so it scratches more easily than steel. Always start with a soft-bristled brush to avoid scratching bare aluminum or wearing down its coating.
Cleaning aluminum pots and pans? See our guide on how to clean aluminum pots and pans.
Caution: Protect asphalt. Simple Green Pro HD Heavy-Duty Cleaner is strong enough to break down tar and asphalt. Don't clean over asphalt driveways or streets, and avoid letting the product drip or spill onto asphalt, since it can cause pitting or damage.
Use these steps for aluminum surfaces you'll clean by spraying, like patio furniture, railings, trim, and other coated or finished aluminum.
For aluminum auto parts or machinery, immersion cleaning in a parts washer or ultrasonic cleaner is a great option. Simple Green Pro HD contains a corrosion inhibitor that helps protect metal surfaces while they're fully submerged, as long as the solution is mixed at the right strength.
NOTE: The corrosion inhibitor in Pro HD only works during full immersion. When you spray-clean aluminum, it isn't activated, which is why rinsing and drying right away when applying via trigger spray is important.
For painted aluminum siding, use an outdoor cleaner like Simple Green Oxy Solve House & Siding Cleaner. It uses the power of peroxide to brighten and renew aluminum siding, brick, wood, stucco, and vinyl siding.
How to Clean Aluminum Pots and Pans