Anodizing allows you to create a hard, corrosion and abrasion resistant coating on the surface of metals. Not only does anodizing strengthen a surface, it creates a porous surface coating that makes it easier for paints and dyes to adhere. Aluminum anodizing is a "home brew" technique that, with a few safety precautions, can easily be carried out in your driveway or garage.
- Nonreactive bath (ie, ceramic)
- Distilled water
- Sulfuric acid
- Battery charger
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Instructions
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1
Connect the lead plates to the anode of the battery charger and connect the part of the aluminum to be anodized to the cathode of the charger.
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2
Make your acid bath in the ceramic tub. Mix the sulfuric acid and water in a 1:3 solution and place the anode and cathode in the bath.
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3
Plug in the battery charger. Set the current to about 10 amps and leave the aluminum in the bath for about two hours.
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4
Rinse the aluminum in distilled water.