How to deal with the oxidized aluminum products, what to clean the oxidized copper coins

How to deal with the oxidized aluminum products-When aluminum products oxidize, you can try the following methods to deal with it:
Cleaning: Use warm water and mild soap to clean aluminum surfaces to remove surface dirt and impurities. Dry gently.

Removal of scale: For milder scales, you can use an acidic or alkaline cleaner to remove them. Try acidic or alkaline solutions like lemon juice, white vinegar, or soda. Apply the cleaner to the oxidized part, then wipe it gently with a soft cloth. CAUTION Be careful when using acidic or alkaline cleaners to avoid irritation or damage to the skin.

Polishing: If the oxide layer is more stubborn, it can be polished with an aluminum polish. Choose a polish that is suitable for aluminum and follow the product directions. Apply polish to the oxidized part, then polish with a soft cloth or polishing pad. Move the cloth or pad evenly until the oxide layer lightens or disappears.

Protection: After dealing with the oxidation problem, it is recommended to protect the aluminum products to prevent re-oxidation. Aluminum surfaces can be coated with special aluminum protectants or varnishes to form a protective film that prevents oxidation from occurring.

Note that dealing with oxidation on aluminum requires careful handling. Before using any cleaner or polish, experiment and test it in an inconspicuous location to ensure it will not cause damage to the aluminum.

When copper coins oxidize, you can try the following methods to clean them:
Lemon juice or white vinegar: Pour lemon juice or white vinegar into a shallow dish and soak the oxidized copper coins in it. Let the coins soak in lemon juice or white vinegar for about 5-10 minutes, then use a soft brush to gently scrub the surface of the coins. Finally, rinse the copper coins with clean water and dry them with a soft cloth.

Salt and Vinegar: To make a salt-vinegar mixture, combine equal parts salt and vinegar to form a paste. Put the copper coins into the mixture, and gently scrub the surface of the copper coins with a soft brush. After brushing, rinse the copper coins with clean water and dry them with a soft cloth.

Copper cleaners: There are cleaners on the market that are made specifically for cleaning copper items. According to the instructions of the cleaning agent, apply an appropriate amount of cleaning agent to the surface of the copper coin, and gently scrub with a soft brush. Then rinse the coins with clean water and dry them with a soft cloth.

Note, use caution with any cleaning method and avoid over-brushing or using overly harsh chemicals that can damage the coin surface.