Anodized Freedom Series Tracks
The Anodizing Process
Anodizing is not like paint. It cannot be removed by solvents and is not
easily scratched. Aluminum is immersed in a tank containing an electrolyte
having a 15% sulfuric acid concentration. Electric current is passed through
the electrolyte and the aluminum is made the anode in this electrolytic cell;
the tank is the cathode. Voltage applied across the anode and cathode causes
negatively charged anions to migrate to the anode where the oxygen in the
anions combines with the aluminum to form aluminum oxide. Aluminum oxide is
grown out of the surface during anodizing and then becomes aluminum hydrate
that is extremely hard. The surface will be a cosmetically pleasing uniform
'satin' silver that will be less susceptible to scratches.
Points to Consider
Anodizing is an electro-chemical process which physically alters
the surface of the metal to produce a tough oxide layer on the surface.
It should be noted that as the anodized surface is a layer of aluminum
oxide, rather than metal, it exhibits a very high resistance to
electric current.
Many metals are structurally weakened by the oxidation process, but not
aluminum. Aluminum can actually be made stronger and more durable through
'anodizing'.
Anodized aluminum can be nearly as hard as diamond under the right anodizing
process.
Anodizing is not an inexpensive option, however, our purchasing volume affords
us the opportunity to provide this service at a competitive price.