zinc plating on the servo

[robert]

i have a friend restoring a 1275 s ,and he is trying to find somewhere to plate the servo in that tumbled gold finish ,he told me what its called ,but stuffed if i can remember ,zinc something or other .
does anyone know where he might get it done ?

thanks
robert

[Smiffy]

Anodising

[Will Grant]

I dont think (neck out here) that gold cad is correct for an Mk1/2 - gold superceded the silver finish late 60s / early 70s? and all un-restored servo's i have seen have the silver cad finish.

The difficultly is getting in replicated, the process is outlawed here bar for aerospace applications, it can be done in the US but i believe the best bet in absence of alternatives is a dull zinc.

[Tim]

Gold passivation.

[Toby]

Cadmium can be still done in the UK, contact EIC:

http://www.eicgroup.co.uk/index.php/Page/Home/gb

[mascher]

He probably mentioned zinc chromate plating. It's pretty common and is often mistaken for cadmium which is much more expensive.

Kelley

[Will Grant]

Have you used EIC Toby?

[66S]

My plater refers to zinc plating as gold zinc or blue zinc and he does both. Blue zinc goes white as it oxidizes and looks very much like cadmium. In my opinion, gold zinc is wrong for a Mk1, too modern and Japanese looking.

Regards
Al

[robert]

thanks chaps ,i passed on the details ,and he'll see whats what .incidentally , the original servo drum , when split into two ,is gold zinc on the inside .

[Will Grant]

EIC cannot do any CAD plating except for aerospace/military applications.

[robert]

sounds like he might be in trouble will , al ,who are your platers ?
one suggestion was that he ask the brake caliper recon companies , because they seem to come back with a new coating of gold zinc ?

[Will Grant]

I have mine done locally - most plating co's seem to offer zinc, and this is the route i would go down.

[66S]

al ,who are your platers ?

Superb Plating Works but I am in Christchurch New Zealand.

Al

[66S]

incidentally , the original servo drum , when split into two ,is gold zinc on the inside .

Robert, don't take what you found as gospel. During reconditioning, it would be quite normal to have components replated.

Regards
Al

[robert]

you lost me al ,do you mean the gold could be a result of a recon years ago ,and therefore not really original ?

[mk1]

Gold or silver passivated zinc are available from any electroplating company in the country. For a very authentic looking Cad type finish you can get a kit from here;

http://www.caswelleurope.co.uk/

http://www.caswelleurope.co.uk/cadzinc.htm

http://www.caswelleurope.co.uk/Scoopercc&z.htm

They also offer a range of other excellent plating kits & accessories. Not cheap, but if you are doing quite a bit its easy & you soon get your costs back.

I agree that most if not all MK1 S's left the factory with a Cadmium plated servo reservoir not a gold passivated zinc one, although as usual I accept that most things are possible.

[robert]

thanks al , i think that may be a bit far to go lol.

thanks mark i'll pass that on . i dont think its a mk 1 .

[Will Grant]

Continued conversation with EIC - can do a Zinc with bright clear passivate, which i looks very close to Cadmium....

[cheleker]

Thanks, Mark. I was starting to doubt my memory. I've been around a lot of original, Mk I Cooper S cars (English built) over the years and have never seen one with an originally fitted gold servo.

[robert]

Continued conversation with EIC - can do a Zinc with bright clear passivate, which i looks very close to Cadmium....

thanks will .