Zinc electroplating is one of the more versatile finishes and can be chromated different colors after plating to achieve different results for a product.
Zinc has a bluish-white deposit that is an excellent, inexpensive, decorative, and sacrificial protective coating against corrosion of steel and iron parts. It is mostly used on nuts, bolts, fasteners, and sheet metal parts, and further protected by an application of chromates and sealers, which help prevent corrosion of both the zinc and the base metal.
Clear or “bluebright” is often used as an inexpensive imitation for chrome plating.
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. The plating can also be dyed after plating for lot identification.