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Date: | Thu, 07 Nov 96 16:59:12 EST |
Content-Type: | text/plain |
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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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