About Anodized Aluminum Strong, durable, versatile and light. The combined characteristics of aluminum make it an ideal medium for artists and crafters. Aluminum is made even more practical and attractive with the anodizing process. Aluminum is lighter than steel, copper and brass. It is corrosion resistant, highly reflective,non-toxic,and can be readily recycled. Anodizing is a electro-chemical process which strengthens aluminum, making it corrosion resistant while also allowing the integration of color into the metal substrate,resulting in a more lustrous and decorative finish.  No wonder so many artists choose anodized aluminum over other base or precious metals.