Turn-Key Coatings employs skilled “artisans” who apply custom masking in exacting detail.  Specialty or custom masking comes into play when only certain areas of a particular part are to be plated or anodized, or when multiple processes are required on the same part.  For example, anodizing aluminum provides for durability but results in a nonconductive aluminum surface so to have conductive and corrosion resistant properties on a portion of the part it may have an alodine coating, also known as iridite or chromate conversion, applied.  This is quite common.  Another example is when a specific part has more than one plating process required such as nickel and gold plating on different portions of the same part.