Good Morning,
I am the QC Manager of
Endicott Research Group, Inc in N.Y. I have some questions regarding the coating
requirements located in the IPC610A Rev B (amendment 1 included). We are using a
acrylic polymar coating with flourescent tracer materials. The question I have
is that when we view the material under a black light we notice that some areas
are heavier than others. The units are being dipped into a pan of material. I
have reduced the amount of thinner used with the acrylic and the coating appears
more even but heavier. Does the tracer have to be even? I would think being
dipped that the consistency is the same. We have stirred the material to assure
that the thinner wasn't seperated from the acrylic. Any input you can give is
appreciated.
Thanking you,
Bob Arciolla