Copper plating can be from matte to a very shiny finish. It has good corrosion resistance
when used as a undercoat for other plated coatings. There are a number of copper plating
processes available, each designed for a specific purpose, and ranging from decorative to
heat treat stop-off.
||.001 - .005" for heat treatment stop-off shield
||.001" min. for carburizing shield, decarburizing shield and
printed circuit board plated through holes.
||.0005" min. as under coat for nickel and other metals
||.0002" min. to prevent basis metal migration into tin layer to
||.0001" min. same as Class 3