Hi Harry,
thanks for your reply !
"Oxi-Clean" is chemically comparable to "Vanish" as far as I know.
It bleaches stuff with oxygen (hence the name). The rest of the
chemicals you use makes the solution highly alkaline (protect
your eyes! One dash of your solution into your eyes...and your
will see...oh wait...no longer see, what that means...) and
lowers the surface tension of the solution.
Denture cleaning tablets do also bleach with oxygen -- see the bubbles
they will produce when put into water.
If all these solutions (in the double sense of these words
do not harm
keys at all...the question reamins, wheter these grey and green printing
on my keycaps technically fall into the same category of labeling production
as the normal black labeling and are therefore as save as the black
labeled keys....?!?
Best regards,
mcc