refurbishment of hard chrome plating

[gcb]

I have been advised that, in order to refurbish a worn hard chrome plating on a component, I will have to completely remove the old plating and re-deposit a new one (i.e. onto base material). Is there any reason why the existing Cr surface cannot be activated and plated onto?

 

[Ori]

Hi,

I'm not quite sure of the reason you can't plate onto the old chrome - it probably just won't work. As far as I know you have to strip the old plating and re-plate.

Ori

 

[Andries]

The old chrome layer, being brittle and probably containing small cracks, does not provide a secure substrate for re-plating, hence total removal.
Andries