You may have heard of the term “anodizing” but got confused about what it is exactly. Here’s a quick guide that explains all you need to know about this electro-chemical process.
What Is Anodizing?
Anodizing is a process that adds a thin layer of oxide to the surface of metals, though aluminum is most commonly anodized.
How Does Anodizing Work?
To anodize metal, you have to fully dip it into an electrolyte bath – most often chromic acid or sulfuric acid – along with a cathode. Doing this creates an electrically conductive layer on the metal. A charge is sent through the acid, which causes the cathode to release oxygen ions that form on the surface of the anode (the metal, which becomes a positively charged electrode)...Read More