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Damaged chrome Brumbury lamp - technical advice?  

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NULL NULL
(@mvdlugtnerim-net)
Eminent Member
Joined: 6 years ago
Posts: 35
02/03/2012 2:00 pm  

I am hoping someone will have some expert thoughts on how to treat the chrome on the foot of a Guzzini Brumbury lamp.
When I bought the lamp, the chrome had spots; no real rust, just a lot of tiny spots. I went to a specialist shop for advice and was told to first sand the chrome very gently with very fine steel wool, and then treat it with a desoxidizing gel for a couple of minutes, and rinse with alcohol.
I scrupulously followed this advice. With disastrous results.
The steel wool did indeed clear up the spots almost entirely. But the desoxidizing gel (brand 'les frères Nordin', no further info on the composition) left the chrome "veiled". In several places it now looks like unpolished silverware. I tried some polish on it, but with no result whatsoever.
I am hitting myself over the head for not stopping after the sanding, and wondering if there is still something I can do. I know chrome is very delicate. Are there other products or tricks I could try? I have heard of a product called "Commandant"?
I may add that I first tried out the gel on some invisible chrome parts on the inside of shade and it worked fine there. Ditto on the top of the shade. But this was probably not the exact same kind of chrome as the foot.
Any suggestions will be much appreciated!
(I tried to take pictures, but they don't show much because of the reflections. "Like unpolished silverware" comes closest to what the chrome looks like).


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Robert Leach
(@robertleach1960yahoo-co-uk)
Illustrious Member
Joined: 6 years ago
Posts: 3212
02/03/2012 2:24 pm  

There
is a product called Autsol that might help, but it possibly sounds like the damage has gone too far.


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bobbdavs (UK)
(@darrengraverhotmail-co-uk)
Honorable Member
Joined: 6 years ago
Posts: 121
02/03/2012 3:24 pm  

autosol is good stuff worked wonders on my DKR-2
autosol is good stuff, worked wonders on the effiel base of my DKR-2, can pick it from Halfords in the UK for a couple of pounds. I used water and tin foil to remove the pitting and then polished and buffed with autosol.


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Gustavo
(@gustavo)
Illustrious Member
Joined: 14 years ago
Posts: 659
02/03/2012 10:40 pm  

"auto polish"
Here we use "auto polish".


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NULL NULL
(@mvdlugtnerim-net)
Eminent Member
Joined: 6 years ago
Posts: 35
03/03/2012 12:26 pm  

water and foil question
Thanks everyone for the suggestions. I'll give the polish a try.
About the water and foil: how would I do this? wet the chrome and rub with foil? And would this work on pitting only, or also on the stains? As I said, the pitting is almost gone, the problem are the "unpolished silver like" stains.


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tktoo
(@tktoo)
Illustrious Member
Joined: 15 years ago
Posts: 2287
03/03/2012 7:10 pm  

It might be permanent.
While chromium is one of the hardest materials known, all chrome plating is not created equal. It sounds like there was a chemical reaction between the cleaning solution and the metallic plating.
There are products that are designed to brighten or restore discolored chrome motorcycle exhaust pipes that might help, but my guess is that the part may need replating.


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NULL NULL
(@mvdlugtnerim-net)
Eminent Member
Joined: 6 years ago
Posts: 35
31/03/2012 7:42 pm  

thanks, Autosol worked on tarnished chrome!
This is just to report back that the Autosol (took me a while to find the brand here) removed almost all the stains on the chrome of my Brumbury lamp. What a relief! Thanks again everyong for the help.


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