How do you know the dielectric properties have not been degraded as part 
of the exposure to your wash chemicals?  1B31S has good adhesion, but what 
about chemical resistance.

In your shoes, I would do a dielectric withstanding voltage test (also 
called a hipot test) to see if exposure to the wash results in a decrease 
in your voltage withstanding.

Doug Pauls



From:   Ioan Tempea <[log in to unmask]>
To:     <[log in to unmask]>
Date:   02/11/2013 10:11 AM
Subject:        [TN] Washing of acrylic conformal coatings
Sent by:        TechNet <[log in to unmask]>



Dear Technos,

I know many of you already advocated against it, but my pain is so big 
that I need to check again.

Took 3 boards from the regular production, coated with 1B31S, and passed 
them in our in-line washer, at 135 F and 3ft/min. Except from coating 
starting peeling from 2-3 component tops, everything looks well.
Does this mean I'm OK, as I prefer touching-up the 2-3 components than 
doing repairs with no-clean?

What else should I check? Should I test anything else? How?

Thanks,

Ioan Tempea, ing.
Ingénieur principal de fabrication / Senior Manufacturing Engineer
[signature002]<http://www.digico.cc/>

950 RUE BERGAR, LAVAL, QC, H7L 5A1<http://g.co/maps/2gh3f>
T+ 1 (450) 967-7100, EXT244
------------------------------------------------------------------------
  [signature001] <http://www.facebook.com/pages/Digico/277076778479>
------------------------------------------------------------------------
Lauréat Dunamis 2012<http://digico.cc/dunamis-2012/>
Entreprise manufacturière / Gestion du capital humain


______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________



______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________