Paint for components
Discussion
It probably isn't cadmium plating - not least because cadmium is toxic; the yellowy stuff is a passivated zinc plating commonly known as "zinc yellow" and frequently mistaken for cadmium plating. If you cook the stuff with a torch and oxidise the plating, you get a yellow oxide which goes white when it cools down - which is a characteristic property of zinc oxide.
Anyway, he's after a spray
Anyway, he's after a spray
Pigeon said:
It probably isn't cadmium plating - not least because cadmium is toxic; the yellowy stuff is a passivated zinc plating commonly known as "zinc yellow" and frequently mistaken for cadmium plating. If you cook the stuff with a torch and oxidise the plating, you get a yellow oxide which goes white when it cools down - which is a characteristic property of zinc oxide.
Anyway, he's after a spray
Cadmium is toxic and is banned in the work I'm involved in but is still available and was the most common treatment for steel in the motor industry and may well still be so.
What I posted was a 4 stage spray paint process that looks like Cadmium or zinc passivated.
Steve
Edit. Cadmium when heated or when broken down by corrosion (Very common when in contact with fenolic resins, such as naturally found in wood or wood products) also produces a white powder which is even more toxic than the gases produced during the plating process.
Steve
>> Edited by steve_D on Saturday 13th November 23:03
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