Does anyone know of anyway to mark board edges with a material that can
withstand some of the stronger aqueous inline cleaning chemistries? We are
using a Kyzen A4520 @ 15% 150F and our Uni-paint pen marks are coming off
at clean. Now we run the boards through the cleaning process up to 5 times
before the assembly is completed, so the material needs to adhere well
enough to handle multiple cleaning steps. We also don't want to spend a
great deal of time performing the marking step. We are considering using
labels now versus pen paint, but if possible would like to stay with an ink
or paint.

Any help would be appreciated.

Thank You.

Chris Schaefer
Suntron Corporation
Process Engineer
540 N. Rogers Road
Olathe, Kansas 66062
913.393.5878
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