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Terry Andrews
United Kingdom
546 Posts |
 Posted - 13/01/2011 : 17:03:35
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In the Octagon Car Club Magazine about 2-3 years ago, someone wrote about the removal of yellow and silver coloured plating. The plating was removed using commonly available liquid / s, similar to using Coke to clean up brass. Does anybody know what the process is to do this? Or can anyone suggest anything. I want to get back to the steel on some new items with the yellow plating so that I can try out a Nickel plating kit.
Thanks…. Terry
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Tim Phelps
United Kingdom
167 Posts |
Posted - 13/01/2011 : 20:09:24
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Terry,
Don't know what will remove it, but a word of caution. That kind of plating is often Cadmium Plating, used for many years in the automotive and aerospace industries. It has now been banned from use by the Health and Safety boys as it is a poison in dust or fume form, eg when sanded, heated or burned.
Tim |
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Cymber
United Kingdom
966 Posts |
Posted - 13/01/2011 : 21:26:18
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Terry,
It is probably zinc plating and is removed very easily by submerging in sulphuric acid, that is the way I do it with new nuts and bolts.
Maurice Blakey. |
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Terry Andrews
United Kingdom
546 Posts |
Posted - 15/01/2011 : 10:48:17
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Hi,
I do not want to remove Cadmium plating as I can recognize this and as you say it has been banned for many years now. The liquid I am looking for is not sulphuric acid. From memory it was using something like GUNK parts cleaner or something along these lines. The product my well have sulphuric acid as part of the formula but it strips the silver coating that replaced Cadmium and the yellow modern plating stuff. So anyone out there with an index for the Octagon Car Club magazine find it for me please…..Thanks…. Terry
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Cymber
United Kingdom
966 Posts |
Posted - 16/01/2011 : 11:33:31
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Terry,
Is the product you are thinking of ALTRANS which is now known as SWARFEGA METAL CLEANER AND RESTORER? This is what I use for derusting. It is basically Ortho Phosphoric Acid which I think is the active ingredient of mamy descaling products and is not as hasty as sulphuric.. I suggested sulphuric acid because it is easy to get hold of from old batteries and works very quickly.
Maurice. |
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Terry Andrews
United Kingdom
546 Posts |
Posted - 16/01/2011 : 16:54:31
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Hi Maurice,
Thanks for the information this is just what I wanted.  I was not too happy to use Sulphuric acid in my current state. Also I knew that I could use the “product” for other things. Thanks for your help…. Regards…. Terry A
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John Reid
United Kingdom
704 Posts |
Posted - 16/01/2011 : 19:01:10
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Cadmium plating is still allowed and used in the aircraft industry and MOD applications. Those companies with the licence to do so typically use a closed loop plating process.
Cadmium plating of steel components more or less eliminiates the galvanic corrosion that would otherwise occur when in contact with aluminium - quite important in an aeroplane!
John R |
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