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From [log in to unmask] Fri Nov 8 13: |
11:22 1996 |
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Sometimes the cause is the CC is too thick and does not allow the
gaseous products to get out. Try thinning the CC.
______________________________ Reply Separator _________________________________
Subject: Bubbles in Conformal Coating
Author: [log in to unmask] at Internet
Date: 11/7/96 5:06 PM
I threw this question out once before but I still cannot determine the
source of bubbles in our conformal coating process. We are using an
acrylic coating and a Nordson Select Coat System. The bubbles come
and go from day to day.
We have looked at viscosity, temperature, humidity, pressure,
z-height, contamination, micro-adjust, and a few other variables. Has
anyone else seen this phenomenon or do you have any insight on it?
Any help is very much appreciated.
Thank you.
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