Colored casing for iPod made of "rust" aluminum

Aluminum and titanium (once used, and the material in the PowerBook G4) housing for Apple devices - a real trump card, and the original chip manufacturer. They are pretty durable for everyday use and for a long time remain quite presentable when used carefully. While laptops and so beautiful in their minimalist design and natural "aluminum silver" color, iPod players are varied in their colors. (All except the touch model.) And, as it turns out, the bright palette of iPod shells are not implemented at the expense of aluminum paint.

IPod mystery painting reveals Gizmodo, Quoting an engineer Hammaka Bill (Bill Hammack). Turns, housings manufacturers do not color the surface thereof, and just introduced into the aluminum paint.

This process is called anodized aluminum. Its essence is that aluminum is forced artificially rust, oxidize. The oxidized surface of the housing there are pores, similar to a honeycomb. They actually introduced paint. That is why the scratch or remove the paint from the iPod can not be the body, because it is "implanted" in aluminum, rather than applied to its surface.