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Beomaster 1000 Piano Keys

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Piaf
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Piaf posted on Thu, Aug 22 2013 4:50 PM

Has anyone found a way to reduce the yellowing of the “piano keys” on a Beomaster 1000?

 

I’ve tried the usual grocery store cleaners: Windex with Vinegar and Fantastic which had little if any effect.

 

I am concerned with trying anything stronger as I do not want to remove the black ink symbols on the keys….. but open to suggestions.

 

Jeff

Beogram 4000, Beogram 4002, Beogram 4004, Beogram 8000, Beogram 8002, Beogram 1602. Beogram 4500 CD player, B&O CDX player, Beocord 4500, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 8004, Beocord 9000, Beomaster 1000, Beomaster 1600, Beomaster 2400.2, Beomaster 2400.2, Beomaster 4400, Beomaster 4500, Beolab 5000, Beomaster 5000, BeoCenter 9000. BeoSound Century,  S-45.2, S-45.2, S-75, S-75, M-75, M-100, MC 120.2 speakers; B&O Illuminated Sign (with crown & red logo). B&O grey & black Illuminated Sign, B&O black Plexiglas dealer sign, B&O ash tray, B&O (Orrefors) dealer award vase,  B&O Beotime Clock. Navy blue B&O baseball cap, B&O T-shirt X2, B&O black ball point pen, B&O Retail Management Binder

 

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Søren Hammer
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I don't know about the symbol prints, but this method seems to work well with computer keyboards: http://www.exisle.net/mb/index.php?/topic/59657-de-yellowing-plastic-the-stain-isnt-permanent-after-all/

Vinyl records, cassettes, open reel, valve amplifiers and film photography.

Piaf
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Piaf replied on Thu, Aug 22 2013 5:11 PM

Thanks Søren. I checked out the article but I don’t know if I am ready to take this Beomaster apart in order to soak the piano keys. Perhaps there is some other method that is less intrusive.

 

Jeff

Beogram 4000, Beogram 4002, Beogram 4004, Beogram 8000, Beogram 8002, Beogram 1602. Beogram 4500 CD player, B&O CDX player, Beocord 4500, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 8004, Beocord 9000, Beomaster 1000, Beomaster 1600, Beomaster 2400.2, Beomaster 2400.2, Beomaster 4400, Beomaster 4500, Beolab 5000, Beomaster 5000, BeoCenter 9000. BeoSound Century,  S-45.2, S-45.2, S-75, S-75, M-75, M-100, MC 120.2 speakers; B&O Illuminated Sign (with crown & red logo). B&O grey & black Illuminated Sign, B&O black Plexiglas dealer sign, B&O ash tray, B&O (Orrefors) dealer award vase,  B&O Beotime Clock. Navy blue B&O baseball cap, B&O T-shirt X2, B&O black ball point pen, B&O Retail Management Binder

 

Dillen
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Dillen replied on Thu, Aug 22 2013 5:17 PM

It's nicotine or at least related to heavy smokers Beomasters (you'll know if you look inside a couple of them) and
unfortunately not just on the surface.
What Søren links to may work on some types of plastics but this is an older type, quite far from the ABS types used
in the 1980s.
I've found no other option than replacing the keys but try it and let us know.

Looking inside smokers units I don't like the thought that humans were breathing in that very same room...

Martin

Piaf
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Piaf replied on Thu, Aug 22 2013 10:18 PM

Hello Martin,

That makes sense, and how unfortunate.

So I won't try scrubbing these piano keys any further. I'll bet the smoking didn't do the electronics any good either.

Jeff

Beogram 4000, Beogram 4002, Beogram 4004, Beogram 8000, Beogram 8002, Beogram 1602. Beogram 4500 CD player, B&O CDX player, Beocord 4500, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 8004, Beocord 9000, Beomaster 1000, Beomaster 1600, Beomaster 2400.2, Beomaster 2400.2, Beomaster 4400, Beomaster 4500, Beolab 5000, Beomaster 5000, BeoCenter 9000. BeoSound Century,  S-45.2, S-45.2, S-75, S-75, M-75, M-100, MC 120.2 speakers; B&O Illuminated Sign (with crown & red logo). B&O grey & black Illuminated Sign, B&O black Plexiglas dealer sign, B&O ash tray, B&O (Orrefors) dealer award vase,  B&O Beotime Clock. Navy blue B&O baseball cap, B&O T-shirt X2, B&O black ball point pen, B&O Retail Management Binder

 

Søren Mexico
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Piaf:

Hello Martin,

That makes sense, and how unfortunate.

So I won't try scrubbing these piano keys any further. I'll bet the smoking didn't do the electronics any good either.

Jeff

Try carefully with Magic Eraser, moistened with a little water, I have used ME on nearly everything and in some cases it is just amazing what it can do.

 

Collecting Vintage B&O is not a hobby, its a lifestyle.

Dillen
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Dillen replied on Thu, Aug 22 2013 10:57 PM

Good idea and I have tried that too. Magic Eraser is a really nice product but it's a bit hard
on the lettering on the BM1000 keys and gives no color change.

Martin

Piaf
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Piaf replied on Thu, Aug 22 2013 11:21 PM

Hi Martin and Søren,

 

I am game for anything, but if as Martin says it won’t change the colour, what is the point? The keys are not marked-up, just really yellow.

 

One other thing, although the sunlight here in British Columbia is nothing compared to my native Florida, I do know that sunlight can and does yellow plastics….. dries plastic out too. So this maybe sunlight induced yellowing rather than smoking related….. if that makes any difference.

 

Jeff

Beogram 4000, Beogram 4002, Beogram 4004, Beogram 8000, Beogram 8002, Beogram 1602. Beogram 4500 CD player, B&O CDX player, Beocord 4500, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 8004, Beocord 9000, Beomaster 1000, Beomaster 1600, Beomaster 2400.2, Beomaster 2400.2, Beomaster 4400, Beomaster 4500, Beolab 5000, Beomaster 5000, BeoCenter 9000. BeoSound Century,  S-45.2, S-45.2, S-75, S-75, M-75, M-100, MC 120.2 speakers; B&O Illuminated Sign (with crown & red logo). B&O grey & black Illuminated Sign, B&O black Plexiglas dealer sign, B&O ash tray, B&O (Orrefors) dealer award vase,  B&O Beotime Clock. Navy blue B&O baseball cap, B&O T-shirt X2, B&O black ball point pen, B&O Retail Management Binder

 

Søren Mexico
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As Martin already mentioned, early white plastics (and cheap newer ones) gets yellow with age,more so if exposed to direct sunlight, this happens homogeneous and you can do nothing about it. If it is smoke related its normally at the surface only.  

Collecting Vintage B&O is not a hobby, its a lifestyle.

Piaf
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Piaf replied on Fri, Aug 23 2013 12:57 AM

Hello both Sørens and Martin,

 

No luck with the Magic Eraser. I gave it the old college try and managed to dull the plastic while removing some of the lettering….. make that lightening the lettering, but not what I was hoping to do.

 

I then tried my favourite trick, that is use automobile cleaners/polishes on the plastic. That helped ever so slightly and the Meguiar’s plastic protection just brought the plastic appearance back to what it was before I used the ME on it.

 

Hey, it didn’t work, but we tried and I appreciate the tip.Smile

 

As for the Beomaster 1000 residing in a smoker’s household, I rather doubt it as the insides look quite respectable.  

 

Jeff   

Beogram 4000, Beogram 4002, Beogram 4004, Beogram 8000, Beogram 8002, Beogram 1602. Beogram 4500 CD player, B&O CDX player, Beocord 4500, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 8004, Beocord 9000, Beomaster 1000, Beomaster 1600, Beomaster 2400.2, Beomaster 2400.2, Beomaster 4400, Beomaster 4500, Beolab 5000, Beomaster 5000, BeoCenter 9000. BeoSound Century,  S-45.2, S-45.2, S-75, S-75, M-75, M-100, MC 120.2 speakers; B&O Illuminated Sign (with crown & red logo). B&O grey & black Illuminated Sign, B&O black Plexiglas dealer sign, B&O ash tray, B&O (Orrefors) dealer award vase,  B&O Beotime Clock. Navy blue B&O baseball cap, B&O T-shirt X2, B&O black ball point pen, B&O Retail Management Binder

 

Dillen
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Dillen replied on Fri, Aug 23 2013 7:37 AM

Sunlight can do strange things, that's for sure but if you look inside, I'm sure you'll find that the
keys have also yellowed on the underside.

Martin

Piaf
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Piaf replied on Fri, Aug 23 2013 4:25 PM

Hello Martin,

 

I was inside this Beomaster 1000 expecting to find an ungodly amount of dust after so many years, which wasn’t the case. However I have a vague memory that the keys were fairly evenly yellowed.

 

Jeff

Beogram 4000, Beogram 4002, Beogram 4004, Beogram 8000, Beogram 8002, Beogram 1602. Beogram 4500 CD player, B&O CDX player, Beocord 4500, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 5000 T4716, Beocord 8004, Beocord 9000, Beomaster 1000, Beomaster 1600, Beomaster 2400.2, Beomaster 2400.2, Beomaster 4400, Beomaster 4500, Beolab 5000, Beomaster 5000, BeoCenter 9000. BeoSound Century,  S-45.2, S-45.2, S-75, S-75, M-75, M-100, MC 120.2 speakers; B&O Illuminated Sign (with crown & red logo). B&O grey & black Illuminated Sign, B&O black Plexiglas dealer sign, B&O ash tray, B&O (Orrefors) dealer award vase,  B&O Beotime Clock. Navy blue B&O baseball cap, B&O T-shirt X2, B&O black ball point pen, B&O Retail Management Binder

 

Christian Christensen
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I just made an exepriment with one of the side dummy keys, that has no lettering and left it in clorine over night.

Pros. it got lighter., not to orginal colour but obvious difference

cons -  the clorine ate up the shiny surface, from a difference Its not noticable but if you look close you can see it and you can feel the difference with your finger.

Havent tried with one of the keys with lettering, guess there is a chance the black colour will disapear, or also change colour

My re-capped M75 are my precious diamonds.

Christian Christensen
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more..

If I look very very closely on on of the yellowing keys, I can see patterned cracks on the yellowing surface, which I suspect is an already started chemical process of combination of age, light, smoke, and whatever, so the surface is already going through some kind detoriation, that most likely will just get worse and worse over time

The clorine reacts only this detoriated surface, not att all on the side or the back part of the key.

So from a specualtive point of view, for those that wants to experiement, maybe clorine could be part of a method combined with fine sanding and re-lettering and lacquer.

Lots of work though ...

My re-capped M75 are my precious diamonds.

John Francis
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I found a link on plastics and the aging process, it is more informative maybe than helpful but interesting none the less.

http://www.plastiquarian.com/index.php?id=7&subid=127

John

 

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