Copper in color
Matte to a very shiny finish
Good corrosion resistance when used as undercoat
Multiple copper processes are available to meet specific applications
Brightness – to eliminate the need for buffing
High speed – for electroforming
Fine grain – to prevent casehardening
Copper
MIL-C-14550B
Unless otherwise specified
Class 0
0.001” – 0.005”
For heat treatment stop-off
Class 1
0.001”
Plated circuits boards.
Class 2
0.0005”
As an undercoat for nickel and other plating
Class 3
0.0002”
To prevent basis metal migration into tin
Class 4
0.0001”