Today’s demanding aerospace applications require well-engineered and proven deposits that pose as little risk as possible to both the operator and the environment. SIFCO ASC’s cadmium replacements are superior quality deposits that can be applied anywhere, in the shop or in the field.
Cadmium plating is a metallic silver coating that provides excellent corrosion resistance and could be deposited on various materials including steel, copper, iron, brass and aluminum. This is why it was often used in the aerospace industry.
Cadmium is a highly toxic metal and an IARC Group 2A material that leeches easily, so isn’t environmentally friendly. Under the new European Reach statute, cadmium plating is banned except for certain use cases.
Worldwide, cadmium plating has been removed from almost all commercial uses. The only remaining uses are aircraft and military applications, however it’s expected these will be phased out too.
This is why cadmium alternatives, like Zinc-Nickel are used for many cases instead.
For the aircraft industry, Zinc-Nickel LHE and Tin-Zinc are less toxic alternatives to cadmium that can be used to repair damaged cadmium, zinc-nickel, tin-zinc, and damaged IVD aluminum on high strength steels. Both deposits provide excellent corrosion protection and are LHE, and do not require a post-plating, hydrogen embrittlement relief bake.