This make me think, probably the printing has evolved on newer cpus (let's say from 386 to pentium mmx) to avoid such problems? I mean with the winchip I didn't notice any printing problem, while with the 386 just after an hour and half some letters were somewhat less visible.
Well now I can use this cpu as test for all the treatments since it can't get worse than this.
Next step is to try the henkel sidol metallpolitur.

Sphere478 wrote on 2022-03-06, 08:04:

Oh no…… dangit!! I’m sorry man. […]
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Nemo1985 wrote on 2022-03-06, 07:13:

nope, disaster, all the printing has come off! While scratches are still there...

Oh no…… dangit!! I’m sorry man.

This brings up another problem us retro guys have.

We need a way to re silk screen old cpus..

Is it possible?

3D print some masks/stencils... roller paint/ink over them.