Development of Cadmium alternatives has yielded many new coating options, including several organic and inorganic "zinc flake" coating systems which are more like paint than plating. They are generally applied to fasteners with a "dip-spin" process where baskets of parts are immersed into a solution, then raised out of the bath and spun to prevent the coating from building up unevenly. The wet-coated parts are usually then placed into an oven to cure the coating. Some systems require multiple coats, sometimes of different solutions; similar in concept to primer and top coats of paint.
