A process used to protect aluminum from scratches and corrosion. This process also allows aluminum to be dyed a wide range of colors, such as blue and red. Aluminum is covered in aluminum oxide, resulting in dyed aluminum. The anodizing process not only looks good, but increases the hardness of the aluminum. Titanium and Titanium Nitride (both often used in shock shafts due to its strength) can also be anodized.