In case of chemical nickel this is a precipitation of a nickel-phosphorus alloy which is autocatalytic and free of external current. If required, chemical nickel coats can also be de-plated without affecting the base material.
Dimensional accuracy of the nickel coat
Galvanised nickel coat Chemical nickel coat
Precipitation takes place plane-parallel even on edges, in drilled holes, in cavities and even in the case of strongly structured surfaces.
The dimensional accuracy of the coat thicknesses at a micro level (+/- 2 µm) is guaranteed to be perfect through the way the process is carried out. A chemical nickel coat does not require any dimensional correction through mechanical reworking. Depending on the technical requirement coat thicknesses from 2 – 100 µm are possible.