ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hi all,
I am the lucky owner of some vintage B&O Hi-Fi equipment which give me a lot of joy and pride to restore and keep in as mint condition as possible. I have a Beogram 8002 and a Beogram CD X. I would like to polish the clear PVC cover on these units and I am looking for some advice.
Anyone who have done this?
Also, if anyone have advice on restoring the alu parts?
Happy new year to all.
Torsten
Novus plastic polish for the covers. For the aluminum I use a strong cleaner such as diluted Mr. Clean to remove grime and dirt and Noxon very sparingly to remove stains and marks that Mr. Clean didn't remove (don't rub hard or else you'll change the finish from flat to shiny).
I agree with the above. I also use Novus products.Novus #2 for polishing and Novus #1 for final cleaning.
Martin
I have no experience of the cleaners mentioned but I would think it very unlikely that the covers on your equipment are made of PVC. My understanding is that earlier B&O equipment used acrylic and later - from the late 1980s - were more likely to use polycarbonate. Acrylic can be polished relatively easily and there are a number of special products available for this in craft shops. Polycarbonate is more tricky. It does not polish well with abrasives and can be damaged if exposed to solvents or aggressive chemicals. Sometimes this damage is not immediately apparent but shows up as crazing days, weeks or even months later - its called environmental stress cracking and is very unpredictable.
It is not that easy to tell acrylic from polycarbonate without damaging the plastic (acrylic tends to have a slightly duller "ring" when tapped but that can also be affected by the shape and thickness of the part). In general, I think the best advice is to use nothing but water-based glass cleaners and a very soft cotton cloth on any plastic surface. Of course, if it is very badly scratched you may not have much to use but try and polish on a non-visible part first and leave it a few weeks before going ahead with the rest.
Acrylic they are indeed.
thanks for useful info.
cheers