Aluminium is one of the most widely used materials for metal workers and artists. A few characteristics that makes aluminuim a good medium for art is its resistance to corrosion, non-magnetic properties, zero toxicity, lightness and strength. Artists often choose to anodise their aluminium pieces to strengthen the surface and even to add colour to it. Artists, however, must consider a few things before they subject their works of art to the anodising process in order to achieve the best results.
For metals that are going to be used in intensive applications such as automobile parts, thicker oxide layers need to be applied. In decorative pieces, one can do with just a thin layer. This, however, comes with one drawback – it does not offer the same level of wear resistance as with hard anodizing. A thinner oxide layer will still give a good level of corrosion resistance which can help preserve aluminium better.