Hello Technetters,
Any suggestions on the following problem would be greatly appreicated.

We are manufacturing/assembling small amounts of custom boards in house
and are having a
problem with the ink stamped serial numbers on the board.  We have tried
several different types of coatings (epoxies, varnishes, etc.) to try
and protect the ink stampings from coming off.  The
difficulty that we are having now is that during a cleaning bath in 200
proof alchol the epoxy is
peeling off.

Does anybody out there have any suggestions as to what to use to protect
the ink stampings.

TIA,


Bob Ferrell
NASA
MM-G1/G3
Kennedy Space Center, FL.  32899
407-867-6678

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