Believe anodizing is an electrochemical process, where the surface of the aluminum is 'converted' due to the chemical bath and electrical current, giving a harder more durable surface. I would approximate this to the normal weathering that occurs in raw aluminum stock over a period of years, but thats not quite true. The surface is much harder. If U mean a natural aluminum color to an anodized piece of aluminum, it is protected with a high tech (for its time) clear finish. SUggest using a 'mild' paint remover to take it off. Colored anodized aluminum has the converted surface impregnated with a dye, of course the dye is clearcoated to protect it. L. PS In todays finishes there are other processes and combinations to do th e job so the above comments only apply to true anodized aluminum. |