The thickness of the plated layers are then measured under a microscope. The thickness is usually no more than 3-5 mils. The average e-coat thickness is usually less than 5 microns and covers the entire piece as it is electroplated. A drainage hole in the piece will usually prevent problems. The laboratory technician then recommends additions which will improve the appearance of the plate.
Nickel protects metallic objects from corrosion and promotes excellent leveling.
A bright nickel give high brightness to the final finish, and a Watts nickel produces a dull matte finish. Palladium is then used as a barrier coat between the copper and the top-coat. Palladium is also used as a barrier coat in the nickel-free process. The rack is dipped into a plating bath, electric current is activated, and plating occurs. Satin-relieving leaves fine lines and produces a dull, antique look.