Nickel-plating can be done in 2 ways: electrolytically and auto-catalytically, also called chemical nickel plating.
It is used as final layer or as under layer in case of hard chrome as protection against corrosion. The typical layer thickness varies from 15 to 50µ.
Electrolytic nickel plating happens according to the same process as hard chrome.
Chemical nickel is actually a nickel phosphor alloy. Depending on the phosphor content, the layer obtains various properties. Plasmajet works with a high phosphor content. This has good corrosion resistant qualities and can be cured up to 850HV. The most important feature of chemical nickel is that the deposit of the layer happens evenly contrary to electrolytic processes, where a subsequent treatment is required.
As end layer, PTFE particles can also be embedded in the nickel layer. This provides self-lubricating and water resistant properties to the surface.