Yellow A4000 front

[amiga4001]

Just a idea I have,

If you would polish the keyboardkeys in a machine.
That is a trommel(english?)machine.
It is like a washingmachine which rotates slowly and is filled with for example cork(soft material no duts/scratch).
It is easy to control as the process goes slowly.
Just a tiny bit of the surface has to go from the keys.
I think it will improve the whiteness of the keys without loosen the keysymbols.
what do you think?

[amiga4001]

I did try it with a car polish product(commandant).
It is a very aggressive polisher/cleaner.
I used it on a old A500 keyboard which was very yellowed.
I used a dremel with a polishtool(cotton disc) and the carpolish solution.
It worked allright...yes the symbols do get a bit less sharp but still readable.
And the improvement is whitening was absolutely there.
So I think the sysmbols are tougher then you think to get rid off.
This is why I think a machine like this would work.
And you could do all keys in one go not by hand and 30 minutes  the key.