The colors of anodized aluminum are typically deep, rich, bright, and very appealing. However, there is a common misperception that aluminum anodization colors are permanent and will not fade over time. Most dyes used in anodizing are organic dyes that eventually break down over time when exposed to UV light. In some cases, poor quality anodizing is the root cause of fading, but generally there are other more important causes than the quality anodization processes.
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