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Knowledge Bank

WIOPEDIA - The WIOTEC® electroplating encyclopaedia


Knowledge from A - Z

C

Covering capacity

This refers to the ability of electrolyte solutions to cover the cathode surface with a metal layer even at the lowest current densities.
Only above a certain current density does precipitation begin, because in order to reduce the metal, the deposition potential, which depends on various conditions such as the cathode material, must first be exceeded.

More detailed description from the "Magazin für Oberflächentechnik":
"A good hiding power is shown by the fact that in the Hull cell a metal coating is still obtained in such areas of the cathode sheet that are a large distance from the anode and thus have a low current density. The hiding power is not a measure of the layer thickness distribution of the deposited metal."

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