Nickle Free Plating
Your Partner in Metal Finishing Processes and Machinery
White Bronze/Yellow Bronze This process provides Nickel like finish without having Nickel salt being involved in the process. White Bronze is a new process offered by IEL. White bronze alloys have a white appearance, good electrical characteristics, without some of the skin sensitivity concerns associated with nickel plating. White bronze is an alloy consisting of a combination of copper, tin and zinc. Tri-metal alloys are white in color, similar to bright nickel, silver or rhodium and are extremely resistant to tarnish and corrosion. The alloy range is centered around 55% copper, 30% tin and 15% zinc.
Product Features
- White bronze is an ideal substitute for nickel and silver due to the appearance and physical properties; it is highly resistant to corrosion and wear, solderable, non-magnetic, smooth, and non-porous. The bright white finish of white bronze can also be used as an undercoat with palladium, palladium-nickel, silver or gold products or as a topcoat with those metal finishes.
- Both the white and yellow deposits can be used as intermediate layers, in combination with precious metals over tri-metal deposits. However, the mirror white copper-tin-zinc layers, with their higher contents of tin, are predominantly used as final layers. This is based on their appealing bright white color and excellent tarnish/corrosion resistance. These deposits replace the potentially allergenic nickel deposits that were previously in use.
