Gary

The answers to your questions are:

1.  NO

2. YES

The attached PGF file "Avionics Systems, Reliability, and Harsh
Environments" should help.

Good luck!

David A Douthit
Manager
LoCan LLC



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===========================================

On Jun 20, 2006, at 8:35 AM, Bremer, Gary wrote:

> Engineering is recommending that we increase the thickness of the  
> AR coating to .005 ± .002 to seal the boards against moisture.  
> These boards are used on Boeing aircraft, my thought is to use UR  
> coating due to the environment these boards are used.
>
>
>
> Is the Acrylic conformal coating the best choice for this application?
>
>
>
> Are there any problems with increasing the thickness of the Acrylic  
> conformal coating?
>
>
>
> This box is open to the environment and with my knowledge of the  
> mounting location the sanitary lines could be located above the  
> electronics.
>
>
>
> Thanks
>
> Gary Bremer
> Senior Manufacturing Engineer, CIT
>
> Curtiss-Wright Controls Inc.
> Embedded Computing -Subsystem
>
> 28965 Avenue Penn
> Santa Clarita, CA 91355-4185
> Main: 661.257.4430 extension 2170
> Fax: 661.257.4782
>
>
> e-mail: [log in to unmask] <mailto:[log in to unmask]>
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>
> NOTICE: This e-mail communication is private and confidential and  
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