>I want the user know the function of each switch such as "POWER", "RESET",
>etc., of my circuit. So I need to print some words on the surface of the
>enclosure box. These printed words must be non-erasable. What is the best
>way to do?
>John

Sounds like you are using some kind of dry-transfer lettering.  What
you can do is spray clear lacquer (sold along with other spray paint)
over it.  Another source of clear lacquer is clear nail polish.  With
that you have to be careful because it dissolves the print and you
can smear it if you brush it too much.  I've used it--20 years later
the printing is still there.

Hmm, 20 years later, I hope you can still buy lacquer!

Barry

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