Electroless nickel-plating has several advantages versus electroplating. Free from flux density and power supply issues, it provides an even deposit regardless of workpiece geometry (and with the proper pre-plate catalyst) can deposit on non-conductive surfaces.
Electrolytic Nickel deposits are usually laid down in a minimum of 50 microns (.002” Rad) but larger deposits up .050” Rad can be deposited for reclamation of worn parts. On Salt Spray Tests. deposits fewer than 50 microns usually offer some but limited protection against corrosion.
Electrolytic Nickel can be used in environments that require a combination of corrosion and wear protection than a layer of Nickel on Steel with a final Hard Chrome surface coating is usually the industry standard for Hydraulic Cylinders.