Plating

In environments with high humidity, and when dissimilar metals are present, it is advised to consider the electrochemical potential between the shield gasket and the metal in contacts. To prevent galvanic action and its corrosive effects at these points of electrical contact, Omega Shielding offers a complete selection of electronic grade platings. Such surface treatment may be considered when the dissimilar metal's potential is great between the gasket and its mating surfaces, or to assure against oxidation in harsh environments.

For example, unplated Beryllium Copper may perform well with the metals in GROUP 2, but tin plating is recommended for use with GROUP 3 metals.


Finish Code Explanation
Finish CodeFinish Required
 
-20Bright Finish (Standard Finish)
-50Bright Gold
-60Bright Nickel
-61Matte Nickel
-62Bright Electroless Nickel
-70Semi-Bright Silver
-80Bright Tin Plate
-81Matte Tin Plate
-90Bright Zinc Plate
-00 
Grouping of Common Metals by Electrochemical Potential
Cathodic
1.
2.3.4.Anodic
5.
 
GoldCopperTinCadmiumMagnesium
PlatinumBronzeTin LeadZinc
RhodiumBrassAluminumGalvanized Steel
GraphiteBeryllium CopperCarbon Steel
PalladiumStainless Steel
SilverSteel-400 Series
TitaniumChromium
NickelTungsten
Molybdenum