Question

Which of the following are acceptable to use in cleaning anodized surfaces?

1) Steel wool
2) Brass wire brush
3) Aluminum wool
4) Stainless steel wire brush
5) Fiber bristle brush

Answer 1

To clean anodized surfaces, a fibre bristle brush is recommended as it is less likely to scratch the surface compared to steel wool or wire brushes. Maintaining the integrity of the anodized layer is important, as it provides increased corrosion resistance and the ability to absorb dyes.

Step-by-step explanation:

When cleaning anodized surfaces, it is essential to use materials that are not overly abrasive and will not scratch or damage the anodized layer. Of the options provided, fibre bristle brush would be the most acceptable choice for cleaning anodized surfaces. Steel wool, brass wire brush, aluminum wool, and stainless steel wire brush can be too harsh and have the potential to scratch the anodized coating.

Anodizing creates a porous oxide layer on the surface of aluminum for increased corrosion resistance and the ability to absorb dyes. Maintaining the integrity of this layer during cleaning is crucial. Therefore, cleaning agents or tools that are too aggressive should be avoided.

For instance, while stainless steel, nickel, and chromium cleaners containing acids such as lactic, citric, or phosphoric acid are suitable for those metals, they are not suitable for anodized aluminum. Instead, nonabrasive options and cleaners specified for use on anodized aluminum should be employed.