Zinc plating is one of the more versatile finishes. It can be used for corrosion resistance, aesthetics or as a paint base over the zinc. Zinc plating can be chromated different colors after plating to achieve different results for a product. Yellow can be used as is or as a paint base. Black chromate gives a very smooth shiny black finish for decorative purposes or as an excellent corrosion resistant finish. Olive Drab is usually used for military applications to match camouflage. Zinc plating can also be dyed after plating for lot identification. Currently Seminole Metal Finishing does electrical ground green dye. As a general rule of thumb, the darker the chromate, the more corrosion resistant the finish with the same amount of plated thickness.