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Cleaning the aluminium part of a BeoGram

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Christian Leicht
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Aarhus, Denmark
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Christian Leicht posted on Mon, Jun 4 2018 6:43 PM

Hi there!

I am trying to clean the part shown on the picture. It is a BeoGram 1200.

It seems to be a bit fuzzy or dirty. Rubbing alcohol can't clean it.

Does anyone know how to make this as pretty as new? If possible. 

Thank you.

- Christian

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h1npw
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West Bridgford, Nottingham.
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h1npw replied on Tue, Jun 5 2018 8:08 AM

Hi Christian

I'm no expert, but It doesn't look like dirt, more like corrosion/pitting of the surface. In my experience, if a baby wipe doesn't shift it, it ain't going to shift!

Cheers

Nigel

Dillen
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Dillen replied on Tue, Jun 5 2018 10:36 AM

It can't be cleaned away.
It's oxidation/corrosion as Nigel suggests to the eloxated aluminium.
Only way to remove it is to sand it away, but that would also remove the eloxation and the lettering and the knob would be impossible
to keep clean afterwards. Untreated aluminium will turn black from finger-acid.

Only cure is a replacement part. And they are not easy to come by, they will all have this, more or less.

Martin 

Ben_S
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Ben_S replied on Tue, Jun 5 2018 8:53 PM

Dillen:

It can't be cleaned away.
It's oxidation/corrosion as Nigel suggests to the eloxated aluminium.
Only way to remove it is to sand it away, but that would also remove the eloxation and the lettering and the knob would be impossible
to keep clean afterwards. Untreated aluminium will turn black from finger-acid.

Only cure is a replacement part. And they are not easy to come by, they will all have this, more or less.

Martin 

Agree with Martin here, I have a couple of BG1800/1200 type Beograms. They seem to be particularly prone to this oxidisation, not much you can do about it!

Ben

Christian Leicht
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Aarhus, Denmark
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Thank you everyone. I'll leave it alone then.

Christian Leicht
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Aarhus, Denmark
22 Posts
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Thank you everyone. I'll leave it alone then.

Christian Leicht
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Aarhus, Denmark
22 Posts
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Bronze Member

I had a spare part which i tried to clean with Brasso. After a lot of sweat i managed to make it almost as pretty as "new".

Maybe it is possible to treat the aluminium with some kind of mat varnish so it won't turn black again?

rene grondin
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northern quebec canada
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Yep i have a 1200 and its almost impossible to make those black spots go away,i made little progress with Autosol metal polish but you have to be carefull not to touch the numbers,Q-Tips.
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