Anodizing is usually a process utilized to thicken the oxide layer on the surface of metal just for the purpose corrosion and wear resistance. Anodized aluminum is made applying this process, and is used to make pots and pans, car parts, aircraft parts and household objects like flashlights. While anodized aluminum is rather durable, after time, it might become stained or scratched, or it may just look dull. Polishing anodized aluminum will bring back its shine to make it look new again.
One way to clean anodized aluminum is to first de-anodize it to remove stains and oxidation, then sand, buff and coat it. Don't use this method for cookware or for aluminum that will be regularly exposed to the elements. Add 1 to 2 tablespoons of drain cleaner crystals to a pan of warm water in order to de-anodize tge aluminum. Place your anodized aluminum pieces in this particular bath for a minute or possibly even longer, then lift it out and wipe off the residue before submerging it again for another minute. Until the entire anodized surface has disappeared, continue this cycle, leaving a clean (but still scratched) aluminum surface. Rinse very well with clean water, then sand out the scratches with 800-grit sandpaper. Buff to a shine and clear coat the piece as a way to protect it.
As a way to clean anodized aluminum cookware, make use of mild dish soap, warm water and a non-abrasive pad. You may not get all of the stains off, but scrubbing it with an abrasive cleaner or tool will scratch the surface and render it less effective. There are some anodized aluminum cleaners on the market that you can use; look for it at your local hardware store and use it according to directions.
As a way to wash heavily-pitted, scratched and dirty anodized aluminum, make use of a clear protective coating, available at any hardware store. First, create a paste utilizing a non-abrasive powdered cleanser, wet down your aluminum piece as well as apply the paste with a non-abrasive pad. Scrub softly and rinse the piece properly. Polishing anodized aluminum is not hard: add 1 to 2 ounces of gentle dish detergent to a gallon of warm water and scrub the piece with the solution making use of a soft brush. Rinse it well with clean, warm water, next, totally dry the surface. Dampen a small microfiber cloth with denatured alcohol, sold at the hardware store, and wipe the aluminum piece to clear out any residual oils or fingerprints before applying the protective coating. Be sure the coating applicator is wet, and also apply the product to the piece in even strokes. Prior to adding another coat if desired, give it time to dry thoroughly.
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Polishing anodized aluminum will keep it shiny and looking brand-new. Whether your piece is part of your vehicle or an architectural feature in your home--or a stapler or mp3 player--keeping it clean and polished will protect it from the elements and prevent further oxidation. Clean anodized aluminum regularly for the best results.