Fastener coatings or finishes improve appearance, increase corrosion resistance, and provide lubricity. Electrodeposited coatings: Zinc, cadmium, tin, nickel, and chromium coatings are most common for ...
Anodizing. An acid dip that gives parts a frosty, etched appearance. It provides good corrosion resistance, and parts can be color dipped after being anodized. It can only be used on aluminum. Black ...