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Thanks very much for the info. It would also help to know what type of plastic is used for chip covers. Might it be a special variation of
ABS. If so, maybe a blob of ABS plumbing glue might fuse, chemicaly react, with the chip surface.

----- Original Message -----
From: smith.jeff28
To: 6...@yahoogroups.com
Sent: Friday, February 01, 2008 9:16 PM
Subject: [68HC12] Re: ways of clearing the IC chip markings
White glue is easily dissolved. It is water soluble.
Laser marking are, by design, very difficult to obscure. Even if you
think it is off, there are enchants that can restore it.
I recommend this epoxy:
http://www.jgreer.com/electronic_potting.htm

It is a very hard to remove.

[Non-text portions of this message have been removed]



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